This file was assembled by Hunter Ratliff from a variety of sources over time;
it just seeks to compile information for materials to be used in Monte Carlo 
particle transport calculations in an easily accessible plain-text format. 
The first 372 entries are from the Compendium of Material Composition Data for
Radiation Transport Modeling (Rev. 1), PNNL-15870 Rev. 1, published by the
Pacific Northwest National Laboratory.  That document can be found at:
https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-15870Rev1.pdf
The sources for other entries are specified.

********************************************************************************
  1   : A-150 Tissue-Equivalent Plastic (A150TEP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.127000 
  Total atom density (atoms/b-cm) = 1.169E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101327      0.583640      0.068228      
  C         6000         6000         0.775501      0.374859      0.043822      
  N         7014         7000         0.035057      0.014531      0.001699      
  O         8016         8000         0.052316      0.018984      0.002219      
  F         9019         9000         0.017422      0.005324      0.000622      
  Ca        20000        20000        0.018378      0.002662      0.000311      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101327     1001    0.583640      1001    0.068228      
     6000    -0.775501     6000    0.374859      6000    0.043822      
     7014    -0.035057     7014    0.014531      7014    0.001699      
     8016    -0.052316     8016    0.018984      8016    0.002219      
     9019    -0.017422     9019    0.005324      9019    0.000622      
     20000   -0.018378     20000   0.002662      20000   0.000311      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101327     1000    0.583640      1000    0.068228      
     6000    -0.775501     6000    0.374859      6000    0.043822      
     7000    -0.035057     7000    0.014531      7000    0.001699      
     8000    -0.052316     8000    0.018984      8000    0.002219      
     9000    -0.017422     9000    0.005324      9000    0.000622      
     20000   -0.018378     20000   0.002662      20000   0.000311      
********************************************************************************

********************************************************************************
  2   : Acetone 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H6O 
  Molecular weight (g/mole) = 58.07914 
  Density (g/cm3) = 0.789900 
  Total atom density (atoms/b-cm) = 8.190E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.104122      0.599985      0.049140      
  C         6000         6000         0.620405      0.300013      0.024571      
  O         8016         8000         0.275473      0.100002      0.008190      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.104122     1001    0.599985      1001    0.049140      
     6000    -0.620405     6000    0.300013      6000    0.024571      
     8016    -0.275473     8016    0.100002      8016    0.008190      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.104122     1000    0.599985      1000    0.049140      
     6000    -0.620405     6000    0.300013      6000    0.024571      
     8000    -0.275473     8000    0.100002      8000    0.008190      
********************************************************************************

********************************************************************************
  3   : Acetylene 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H2 
  Molecular weight (g/mole) = 26.03728 
  Density (g/cm3) = 0.001097 
  Total atom density (atoms/b-cm) = 1.015E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.077418      0.499983      0.000051      
  C         6000         6000         0.922582      0.500017      0.000051      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.077418     1001    0.499983      1001    0.000051      
     6000    -0.922582     6000    0.500017      6000    0.000051      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.077418     1000    0.499983      1000    0.000051      
     6000    -0.922582     6000    0.500017      6000    0.000051      
********************************************************************************

********************************************************************************
  4   : Air (dry, near sea level) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.001205 
  Total atom density (atoms/b-cm) = 4.988E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000124      0.000150      0.000000      
  N         7014         7000         0.755268      0.784431      0.000039      
  O         8016         8000         0.231781      0.210748      0.000011      
  Ar        18000        18000        0.012827      0.004671      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000124     6000    0.000150      6000    0.000000      
     7014    -0.755268     7014    0.784431      7014    0.000039      
     8016    -0.231781     8016    0.210748      8016    0.000011      
     18000   -0.012827     18000   0.004671      18000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000124     6000    0.000150      6000    0.000000      
     7000    -0.755268     7000    0.784431      7000    0.000039      
     8000    -0.231781     8000    0.210748      8000    0.000011      
     18000   -0.012827     18000   0.004671      18000   0.000000      
********************************************************************************

********************************************************************************
  5   : Alanine 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.420000 
  Total atom density (atoms/b-cm) = 1.248E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.079190      0.538450      0.067185      
  C         6000         6000         0.404439      0.230778      0.028795      
  N         7014         7000         0.157213      0.076924      0.009598      
  O         8016         8000         0.359159      0.153848      0.019197      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.079190     1001    0.538450      1001    0.067185      
     6000    -0.404439     6000    0.230778      6000    0.028795      
     7014    -0.157213     7014    0.076924      7014    0.009598      
     8016    -0.359159     8016    0.153848      8016    0.019197      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.079190     1000    0.538450      1000    0.067185      
     6000    -0.404439     6000    0.230778      6000    0.028795      
     7000    -0.157213     7000    0.076924      7000    0.009598      
     8000    -0.359159     8000    0.153848      8000    0.019197      
********************************************************************************

********************************************************************************
  6   : Aluminum 
  Source = PNNL-15870 Rev. 1 
  Formula = Al 
  Molecular weight (g/mole) = 26.981538 
  Density (g/cm3) = 2.698900 
  Total atom density (atoms/b-cm) = 6.024E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Al        13027        13000        1.000000      1.000000      0.060238      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13027   -1.000000     13027   1.000000      13027   0.060238      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13000   -1.000000     13000   1.000000      13000   0.060238      
********************************************************************************

********************************************************************************
  7   : Aluminum Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = Al2O3 
  Molecular weight (g/mole) = 101.961276 
  Density (g/cm3) = 3.970000 
  Total atom density (atoms/b-cm) = 1.172E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.470749      0.600000      0.070344      
  Al        13027        13000        0.529251      0.400000      0.046896      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.470749     8016    0.600000      8016    0.070344      
     13027   -0.529251     13027   0.400000      13027   0.046896      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.470749     8000    0.600000      8000    0.070344      
     13000   -0.529251     13000   0.400000      13000   0.046896      
********************************************************************************

********************************************************************************
  8   : Aluminum, alloy 2024-O 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.780000 
  Total atom density (atoms/b-cm) = 6.022E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mg        12000        12000        0.015000      0.017158      0.001033      
  Al        13027        13000        0.927000      0.955163      0.057519      
  Si        14000        14000        0.002830      0.002801      0.000169      
  Ti        22000        22000        0.000850      0.000494      0.000030      
  Cr        24000        24000        0.000570      0.000305      0.000018      
  Mn        25055        25000        0.006000      0.003036      0.000183      
  Fe        26000        26000        0.002830      0.001409      0.000085      
  Cu        29000        29000        0.043500      0.019031      0.001146      
  Zn        30000        30000        0.001420      0.000604      0.000036      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.015000     12000   0.017158      12000   0.001033      
     13027   -0.927000     13027   0.955163      13027   0.057519      
     14000   -0.002830     14000   0.002801      14000   0.000169      
     22000   -0.000850     22000   0.000494      22000   0.000030      
     24000   -0.000570     24000   0.000305      24000   0.000018      
     25055   -0.006000     25055   0.003036      25055   0.000183      
     26000   -0.002830     26000   0.001409      26000   0.000085      
     29000   -0.043500     29000   0.019031      29000   0.001146      
     30000   -0.001420     30000   0.000604      30000   0.000036      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.015000     12000   0.017158      12000   0.001033      
     13000   -0.927000     13000   0.955163      13000   0.057519      
     14000   -0.002830     14000   0.002801      14000   0.000169      
     22000   -0.000850     22000   0.000494      22000   0.000030      
     24000   -0.000570     24000   0.000305      24000   0.000018      
     25000   -0.006000     25000   0.003036      25000   0.000183      
     26000   -0.002830     26000   0.001409      26000   0.000085      
     29000   -0.043500     29000   0.019031      29000   0.001146      
     30000   -0.001420     30000   0.000604      30000   0.000036      
********************************************************************************

********************************************************************************
  9   : Aluminum, alloy 2090-T83 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.590000 
  Total atom density (atoms/b-cm) = 6.054E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.022500      0.083519      0.005056      
  Mg        12000        12000        0.001630      0.001728      0.000105      
  Al        13027        13000        0.944000      0.901423      0.054570      
  Si        14000        14000        0.000650      0.000596      0.000036      
  Ti        22000        22000        0.000980      0.000527      0.000032      
  Cr        24000        24000        0.000330      0.000164      0.000010      
  Mn        25055        25000        0.000330      0.000155      0.000009      
  Fe        26000        26000        0.000780      0.000360      0.000022      
  Cu        29000        29000        0.027000      0.010947      0.000663      
  Zn        30000        30000        0.000650      0.000256      0.000015      
  Zr        40000        40000        0.001150      0.000325      0.000020      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.022500     -       0.083519      -       0.005056      
     12000   -0.001630     12000   0.001728      12000   0.000105      
     13027   -0.944000     13027   0.901423      13027   0.054570      
     14000   -0.000650     14000   0.000596      14000   0.000036      
     22000   -0.000980     22000   0.000527      22000   0.000032      
     24000   -0.000330     24000   0.000164      24000   0.000010      
     25055   -0.000330     25055   0.000155      25055   0.000009      
     26000   -0.000780     26000   0.000360      26000   0.000022      
     29000   -0.027000     29000   0.010947      29000   0.000663      
     30000   -0.000650     30000   0.000256      30000   0.000015      
     40000   -0.001150     40000   0.000325      40000   0.000020      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.022500     3000    0.083519      3000    0.005056      
     12000   -0.001630     12000   0.001728      12000   0.000105      
     13000   -0.944000     13000   0.901423      13000   0.054570      
     14000   -0.000650     14000   0.000596      14000   0.000036      
     22000   -0.000980     22000   0.000527      22000   0.000032      
     24000   -0.000330     24000   0.000164      24000   0.000010      
     25000   -0.000330     25000   0.000155      25000   0.000009      
     26000   -0.000780     26000   0.000360      26000   0.000022      
     29000   -0.027000     29000   0.010947      29000   0.000663      
     30000   -0.000650     30000   0.000256      30000   0.000015      
     40000   -0.001150     40000   0.000325      40000   0.000020      
********************************************************************************

********************************************************************************
  10  : Aluminum, alloy 3003 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.730000 
  Total atom density (atoms/b-cm) = 6.035E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Al        13027        13000        0.978500      0.987924      0.059622      
  Si        14000        14000        0.003320      0.003220      0.000194      
  Mn        25055        25000        0.012500      0.006198      0.000374      
  Fe        26000        26000        0.003880      0.001893      0.000114      
  Cu        29000        29000        0.001250      0.000536      0.000032      
  Zn        30000        30000        0.000550      0.000229      0.000014      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13027   -0.978500     13027   0.987924      13027   0.059622      
     14000   -0.003320     14000   0.003220      14000   0.000194      
     25055   -0.012500     25055   0.006198      25055   0.000374      
     26000   -0.003880     26000   0.001893      26000   0.000114      
     29000   -0.001250     29000   0.000536      29000   0.000032      
     30000   -0.000550     30000   0.000229      30000   0.000014      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13000   -0.978500     13000   0.987924      13000   0.059622      
     14000   -0.003320     14000   0.003220      14000   0.000194      
     25000   -0.012500     25000   0.006198      25000   0.000374      
     26000   -0.003880     26000   0.001893      26000   0.000114      
     29000   -0.001250     29000   0.000536      29000   0.000032      
     30000   -0.000550     30000   0.000229      30000   0.000014      
********************************************************************************

********************************************************************************
  11  : Aluminum, alloy 4043-O 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.690000 
  Total atom density (atoms/b-cm) = 5.966E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Be        4009         4000         0.000005      0.000015      0.000001      
  Mg        12000        12000        0.000280      0.000313      0.000019      
  Al        13027        13000        0.939000      0.944970      0.056377      
  Si        14000        14000        0.052500      0.050757      0.003028      
  Ti        22000        22000        0.001130      0.000641      0.000038      
  Mn        25055        25000        0.000280      0.000138      0.000008      
  Fe        26000        26000        0.004530      0.002203      0.000131      
  Cu        29000        29000        0.001700      0.000726      0.000043      
  Zn        30000        30000        0.000570      0.000237      0.000014      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4009    -0.000005     4009    0.000015      4009    0.000001      
     12000   -0.000280     12000   0.000313      12000   0.000019      
     13027   -0.939000     13027   0.944970      13027   0.056377      
     14000   -0.052500     14000   0.050757      14000   0.003028      
     22000   -0.001130     22000   0.000641      22000   0.000038      
     25055   -0.000280     25055   0.000138      25055   0.000008      
     26000   -0.004530     26000   0.002203      26000   0.000131      
     29000   -0.001700     29000   0.000726      29000   0.000043      
     30000   -0.000570     30000   0.000237      30000   0.000014      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4000    -0.000005     4000    0.000015      4000    0.000001      
     12000   -0.000280     12000   0.000313      12000   0.000019      
     13000   -0.939000     13000   0.944970      13000   0.056377      
     14000   -0.052500     14000   0.050757      14000   0.003028      
     22000   -0.001130     22000   0.000641      22000   0.000038      
     25000   -0.000280     25000   0.000138      25000   0.000008      
     26000   -0.004530     26000   0.002203      26000   0.000131      
     29000   -0.001700     29000   0.000726      29000   0.000043      
     30000   -0.000570     30000   0.000237      30000   0.000014      
********************************************************************************

********************************************************************************
  12  : Aluminum, alloy 5086-O 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.660000 
  Total atom density (atoms/b-cm) = 5.928E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mg        12000        12000        0.040000      0.044473      0.002636      
  Al        13027        13000        0.946500      0.947944      0.056194      
  Si        14000        14000        0.002140      0.002059      0.000122      
  Ti        22000        22000        0.000800      0.000452      0.000027      
  Cr        24000        24000        0.001500      0.000780      0.000046      
  Mn        25055        25000        0.004500      0.002213      0.000131      
  Fe        26000        26000        0.002680      0.001297      0.000077      
  Cu        29000        29000        0.000540      0.000230      0.000014      
  Zn        30000        30000        0.001340      0.000554      0.000033      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.040000     12000   0.044473      12000   0.002636      
     13027   -0.946500     13027   0.947944      13027   0.056194      
     14000   -0.002140     14000   0.002059      14000   0.000122      
     22000   -0.000800     22000   0.000452      22000   0.000027      
     24000   -0.001500     24000   0.000780      24000   0.000046      
     25055   -0.004500     25055   0.002213      25055   0.000131      
     26000   -0.002680     26000   0.001297      26000   0.000077      
     29000   -0.000540     29000   0.000230      29000   0.000014      
     30000   -0.001340     30000   0.000554      30000   0.000033      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.040000     12000   0.044473      12000   0.002636      
     13000   -0.946500     13000   0.947944      13000   0.056194      
     14000   -0.002140     14000   0.002059      14000   0.000122      
     22000   -0.000800     22000   0.000452      22000   0.000027      
     24000   -0.001500     24000   0.000780      24000   0.000046      
     25000   -0.004500     25000   0.002213      25000   0.000131      
     26000   -0.002680     26000   0.001297      26000   0.000077      
     29000   -0.000540     29000   0.000230      29000   0.000014      
     30000   -0.001340     30000   0.000554      30000   0.000033      
********************************************************************************

********************************************************************************
  13  : Aluminum, alloy 6061-O 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.700000 
  Total atom density (atoms/b-cm) = 5.993E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mg        12000        12000        0.010000      0.011162      0.000669      
  Al        13027        13000        0.972000      0.977325      0.058575      
  Si        14000        14000        0.006000      0.005796      0.000347      
  Ti        22000        22000        0.000880      0.000499      0.000030      
  Cr        24000        24000        0.001950      0.001017      0.000061      
  Mn        25055        25000        0.000880      0.000435      0.000026      
  Fe        26000        26000        0.004090      0.001987      0.000119      
  Cu        29000        29000        0.002750      0.001174      0.000070      
  Zn        30000        30000        0.001460      0.000606      0.000036      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.010000     12000   0.011162      12000   0.000669      
     13027   -0.972000     13027   0.977325      13027   0.058575      
     14000   -0.006000     14000   0.005796      14000   0.000347      
     22000   -0.000880     22000   0.000499      22000   0.000030      
     24000   -0.001950     24000   0.001017      24000   0.000061      
     25055   -0.000880     25055   0.000435      25055   0.000026      
     26000   -0.004090     26000   0.001987      26000   0.000119      
     29000   -0.002750     29000   0.001174      29000   0.000070      
     30000   -0.001460     30000   0.000606      30000   0.000036      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.010000     12000   0.011162      12000   0.000669      
     13000   -0.972000     13000   0.977325      13000   0.058575      
     14000   -0.006000     14000   0.005796      14000   0.000347      
     22000   -0.000880     22000   0.000499      22000   0.000030      
     24000   -0.001950     24000   0.001017      24000   0.000061      
     25000   -0.000880     25000   0.000435      25000   0.000026      
     26000   -0.004090     26000   0.001987      26000   0.000119      
     29000   -0.002750     29000   0.001174      29000   0.000070      
     30000   -0.001460     30000   0.000606      30000   0.000036      
********************************************************************************

********************************************************************************
  14  : Aluminum, alloy 7075-O 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.810000 
  Total atom density (atoms/b-cm) = 5.999E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mg        12000        12000        0.025000      0.029014      0.001741      
  Al        13027        13000        0.892500      0.933062      0.055976      
  Si        14000        14000        0.002340      0.002350      0.000141      
  Ti        22000        22000        0.001170      0.000689      0.000041      
  Cr        24000        24000        0.002300      0.001248      0.000075      
  Mn        25055        25000        0.001760      0.000904      0.000054      
  Fe        26000        26000        0.002930      0.001480      0.000089      
  Cu        29000        29000        0.016000      0.007102      0.000426      
  Zn        30000        30000        0.056000      0.024150      0.001449      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.025000     12000   0.029014      12000   0.001741      
     13027   -0.892500     13027   0.933062      13027   0.055976      
     14000   -0.002340     14000   0.002350      14000   0.000141      
     22000   -0.001170     22000   0.000689      22000   0.000041      
     24000   -0.002300     24000   0.001248      24000   0.000075      
     25055   -0.001760     25055   0.000904      25055   0.000054      
     26000   -0.002930     26000   0.001480      26000   0.000089      
     29000   -0.016000     29000   0.007102      29000   0.000426      
     30000   -0.056000     30000   0.024150      30000   0.001449      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -0.025000     12000   0.029014      12000   0.001741      
     13000   -0.892500     13000   0.933062      13000   0.055976      
     14000   -0.002340     14000   0.002350      14000   0.000141      
     22000   -0.001170     22000   0.000689      22000   0.000041      
     24000   -0.002300     24000   0.001248      24000   0.000075      
     25000   -0.001760     25000   0.000904      25000   0.000054      
     26000   -0.002930     26000   0.001480      26000   0.000089      
     29000   -0.016000     29000   0.007102      29000   0.000426      
     30000   -0.056000     30000   0.024150      30000   0.001449      
********************************************************************************

********************************************************************************
  15  : Ammonia (liquid at T= -79 C) 
  Source = PNNL-15870 Rev. 1 
  Formula = NH3 
  Molecular weight (g/mole) = 17.03052 
  Density (g/cm3) = 0.771000 
  Total atom density (atoms/b-cm) = 1.091E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.177547      0.749992      0.081787      
  N         7014         7000         0.822453      0.250008      0.027263      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.177547     1001    0.749992      1001    0.081787      
     7014    -0.822453     7014    0.250008      7014    0.027263      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.177547     1000    0.749992      1000    0.081787      
     7000    -0.822453     7000    0.250008      7000    0.027263      
********************************************************************************

********************************************************************************
  16  : Anthracene 
  Source = PNNL-15870 Rev. 1 
  Formula = C14H10 
  Molecular weight (g/mole) = 178.2292 
  Density (g/cm3) = 1.250000 
  Total atom density (atoms/b-cm) = 1.014E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.056553      0.416667      0.042236      
  C         6000         6000         0.943447      0.583333      0.059130      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.056553     1001    0.416667      1001    0.042236      
     6000    -0.943447     6000    0.583333      6000    0.059130      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.056553     1000    0.416667      1000    0.042236      
     6000    -0.943447     6000    0.583333      6000    0.059130      
********************************************************************************

********************************************************************************
  17  : Argon 
  Source = PNNL-15870 Rev. 1 
  Formula = Ar 
  Molecular weight (g/mole) = 39.948 
  Density (g/cm3) = 0.001662 
  Total atom density (atoms/b-cm) = 2.505E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ar        18000        18000        1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     18000   -1.000000     18000   1.000000      18000   0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     18000   -1.000000     18000   1.000000      18000   0.000025      
********************************************************************************

********************************************************************************
  18  : Asphalt 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.300000 
  Total atom density (atoms/b-cm) = 1.373E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.103725      0.586755      0.080564      
  C         6000         6000         0.848050      0.402588      0.055277      
  N         7014         7000         0.006050      0.002463      0.000338      
  O         8016         8000         0.004050      0.001443      0.000198      
  S         16000        16000        0.037700      0.006704      0.000920      
  V         23000        23000        0.000393      0.000044      0.000006      
  Ni        28000        28000        0.000034      0.000003      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.103725     1001    0.586755      1001    0.080564      
     6000    -0.848050     6000    0.402588      6000    0.055277      
     7014    -0.006050     7014    0.002463      7014    0.000338      
     8016    -0.004050     8016    0.001443      8016    0.000198      
     16000   -0.037700     16000   0.006704      16000   0.000920      
     23000   -0.000393     23000   0.000044      23000   0.000006      
     28000   -0.000034     28000   0.000003      28000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.103725     1000    0.586755      1000    0.080564      
     6000    -0.848050     6000    0.402588      6000    0.055277      
     7000    -0.006050     7000    0.002463      7000    0.000338      
     8000    -0.004050     8000    0.001443      8000    0.000198      
     16000   -0.037700     16000   0.006704      16000   0.000920      
     23000   -0.000393     23000   0.000044      23000   0.000006      
     28000   -0.000034     28000   0.000003      28000   0.000000      
********************************************************************************

********************************************************************************
  19  : Asphalt pavement 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.578400 
  Total atom density (atoms/b-cm) = 8.943E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.007781      0.134043      0.011988      
  C         6000         6000         0.076175      0.110118      0.009848      
  N         7014         7000         0.000363      0.000450      0.000040      
  O         8016         8000         0.459103      0.498220      0.044556      
  Na        11023        11000        0.011659      0.008805      0.000787      
  Mg        12000        12000        0.021757      0.015543      0.001390      
  Al        13027        13000        0.051009      0.032824      0.002935      
  Si        14000        14000        0.231474      0.143098      0.012797      
  S         16000        16000        0.002804      0.001519      0.000136      
  K         19000        19000        0.017058      0.007575      0.000677      
  Ca        20000        20000        0.084471      0.036595      0.003273      
  Ti        22000        22000        0.003403      0.001235      0.000110      
  V         23000        23000        0.000024      0.000008      0.000001      
  Mn        25055        25000        0.000362      0.000115      0.000010      
  Fe        26000        26000        0.031375      0.009755      0.000872      
  Ni        28000        28000        0.000002      0.000001      0.000000      
  Pb        82000        82000        0.001179      0.000099      0.000009      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.007781     1001    0.134043      1001    0.011988      
     6000    -0.076175     6000    0.110118      6000    0.009848      
     7014    -0.000363     7014    0.000450      7014    0.000040      
     8016    -0.459103     8016    0.498220      8016    0.044556      
     11023   -0.011659     11023   0.008805      11023   0.000787      
     12000   -0.021757     12000   0.015543      12000   0.001390      
     13027   -0.051009     13027   0.032824      13027   0.002935      
     14000   -0.231474     14000   0.143098      14000   0.012797      
     16000   -0.002804     16000   0.001519      16000   0.000136      
     19000   -0.017058     19000   0.007575      19000   0.000677      
     20000   -0.084471     20000   0.036595      20000   0.003273      
     22000   -0.003403     22000   0.001235      22000   0.000110      
     23000   -0.000024     23000   0.000008      23000   0.000001      
     25055   -0.000362     25055   0.000115      25055   0.000010      
     26000   -0.031375     26000   0.009755      26000   0.000872      
     28000   -0.000002     28000   0.000001      28000   0.000000      
     82000   -0.001179     82000   0.000099      82000   0.000009      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.007781     1000    0.134043      1000    0.011988      
     6000    -0.076175     6000    0.110118      6000    0.009848      
     7000    -0.000363     7000    0.000450      7000    0.000040      
     8000    -0.459103     8000    0.498220      8000    0.044556      
     11000   -0.011659     11000   0.008805      11000   0.000787      
     12000   -0.021757     12000   0.015543      12000   0.001390      
     13000   -0.051009     13000   0.032824      13000   0.002935      
     14000   -0.231474     14000   0.143098      14000   0.012797      
     16000   -0.002804     16000   0.001519      16000   0.000136      
     19000   -0.017058     19000   0.007575      19000   0.000677      
     20000   -0.084471     20000   0.036595      20000   0.003273      
     22000   -0.003403     22000   0.001235      22000   0.000110      
     23000   -0.000024     23000   0.000008      23000   0.000001      
     25000   -0.000362     25000   0.000115      25000   0.000010      
     26000   -0.031375     26000   0.009755      26000   0.000872      
     28000   -0.000002     28000   0.000001      28000   0.000000      
     82000   -0.001179     82000   0.000099      82000   0.000009      
********************************************************************************

********************************************************************************
  20  : Bakelite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.250000 
  Total atom density (atoms/b-cm) = 9.935E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.057444      0.431814      0.042901      
  C         6000         6000         0.774589      0.488641      0.048547      
  O         8016         8000         0.167968      0.079544      0.007903      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.057444     1001    0.431814      1001    0.042901      
     6000    -0.774589     6000    0.488641      6000    0.048547      
     8016    -0.167968     8016    0.079544      8016    0.007903      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.057444     1000    0.431814      1000    0.042901      
     6000    -0.774589     6000    0.488641      6000    0.048547      
     8000    -0.167968     8000    0.079544      8000    0.007903      
********************************************************************************

********************************************************************************
  21  : Barium Fluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = BaF2 
  Molecular weight (g/mole) = 175.3238064 
  Density (g/cm3) = 4.890000 
  Total atom density (atoms/b-cm) = 5.039E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.216720      0.666662      0.033592      
  Ba        -            56000        0.783280      0.333338      0.016797      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.216720     9019    0.666662      9019    0.033592      
     -       -0.783280     -       0.333338      -       0.016797      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.216720     9000    0.666662      9000    0.033592      
     56000   -0.783280     56000   0.333338      56000   0.016797      
********************************************************************************

********************************************************************************
  22  : Barium sulfate 
  Source = PNNL-15870 Rev. 1 
  Formula = BaSO4 
  Molecular weight (g/mole) = 233.3896 
  Density (g/cm3) = 4.500000 
  Total atom density (atoms/b-cm) = 6.967E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.274212      0.666682      0.046446      
  S         16000        16000        0.137368      0.166644      0.011610      
  Ba        -            56000        0.588420      0.166674      0.011612      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.274212     8016    0.666682      8016    0.046446      
     16000   -0.137368     16000   0.166644      16000   0.011610      
     -       -0.588420     -       0.166674      -       0.011612      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.274212     8000    0.666682      8000    0.046446      
     16000   -0.137368     16000   0.166644      16000   0.011610      
     56000   -0.588420     56000   0.166674      56000   0.011612      
********************************************************************************

********************************************************************************
  23  : Benzene 
  Source = PNNL-15870 Rev. 1 
  Formula = C6H6 
  Molecular weight (g/mole) = 78.11184 
  Density (g/cm3) = 0.876500 
  Total atom density (atoms/b-cm) = 8.109E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.077418      0.499983      0.040542      
  C         6000         6000         0.922582      0.500017      0.040545      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.077418     1001    0.499983      1001    0.040542      
     6000    -0.922582     6000    0.500017      6000    0.040545      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.077418     1000    0.499983      1000    0.040542      
     6000    -0.922582     6000    0.500017      6000    0.040545      
********************************************************************************

********************************************************************************
  24  : Beryllium 
  Source = PNNL-15870 Rev. 1 
  Formula = Be 
  Molecular weight (g/mole) = 9.012182 
  Density (g/cm3) = 1.848000 
  Total atom density (atoms/b-cm) = 1.235E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Be        4009         4000         1.000000      1.000000      0.123487      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4009    -1.000000     4009    1.000000      4009    0.123487      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4000    -1.000000     4000    1.000000      4000    0.123487      
********************************************************************************

********************************************************************************
  25  : Beryllium Carbide 
  Source = PNNL-15870 Rev. 1 
  Formula = Be2C 
  Molecular weight (g/mole) = 30.035064 
  Density (g/cm3) = 1.900000 
  Total atom density (atoms/b-cm) = 1.143E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Be        4009         4000         0.600111      0.666667      0.076191      
  C         6000         6000         0.399889      0.333333      0.038096      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4009    -0.600111     4009    0.666667      4009    0.076191      
     6000    -0.399889     6000    0.333333      6000    0.038096      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4000    -0.600111     4000    0.666667      4000    0.076191      
     6000    -0.399889     6000    0.333333      6000    0.038096      
********************************************************************************

********************************************************************************
  26  : Beryllium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = BeO 
  Molecular weight (g/mole) = 25.011582 
  Density (g/cm3) = 3.010000 
  Total atom density (atoms/b-cm) = 1.449E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Be        4009         4000         0.360320      0.500000      0.072473      
  O         8016         8000         0.639680      0.500000      0.072473      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4009    -0.360320     4009    0.500000      4009    0.072473      
     8016    -0.639680     8016    0.500000      8016    0.072473      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     4000    -0.360320     4000    0.500000      4000    0.072473      
     8000    -0.639680     8000    0.500000      8000    0.072473      
********************************************************************************

********************************************************************************
  27  : Bismuth 
  Source = PNNL-15870 Rev. 1 
  Formula = Bi 
  Molecular weight (g/mole) = 208.98038 
  Density (g/cm3) = 9.747000 
  Total atom density (atoms/b-cm) = 2.809E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Bi        83209        83000        1.000000      1.000000      0.028088      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     83209   -1.000000     83209   1.000000      83209   0.028088      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     83000   -1.000000     83000   1.000000      83000   0.028088      
********************************************************************************

********************************************************************************
  28  : Bismuth Germanate (BGO) 
  Source = PNNL-15870 Rev. 1 
  Formula = Bi4Ge3O12 
  Molecular weight (g/mole) = 1245.83432 
  Density (g/cm3) = 7.130000 
  Total atom density (atoms/b-cm) = 6.548E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.154126      0.631647      0.041363      
  Ge        -            32000        0.174820      0.157804      0.010334      
  Bi        83209        83000        0.671054      0.210549      0.013788      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.154126     8016    0.631647      8016    0.041363      
     -       -0.174820     -       0.157804      -       0.010334      
     83209   -0.671054     83209   0.210549      83209   0.013788      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.154126     8000    0.631647      8000    0.041363      
     32000   -0.174820     32000   0.157804      32000   0.010334      
     83000   -0.671054     83000   0.210549      83000   0.013788      
********************************************************************************

********************************************************************************
  29  : Blood (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.060000 
  Total atom density (atoms/b-cm) = 1.017E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101866      0.634604      0.064514      
  C         6000         6000         0.100020      0.052291      0.005316      
  N         7014         7000         0.029640      0.013288      0.001351      
  O         8016         8000         0.759414      0.298046      0.030299      
  Na        11023        11000        0.001850      0.000505      0.000051      
  Mg        12000        12000        0.000040      0.000010      0.000001      
  Si        14000        14000        0.000030      0.000007      0.000001      
  P         15031        15000        0.000350      0.000071      0.000007      
  S         16000        16000        0.001850      0.000362      0.000037      
  Cl        17000        17000        0.002780      0.000492      0.000050      
  K         19000        19000        0.001630      0.000262      0.000027      
  Ca        20000        20000        0.000060      0.000009      0.000001      
  Fe        26000        26000        0.000460      0.000052      0.000005      
  Zn        30000        30000        0.000010      0.000001      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101866     1001    0.634604      1001    0.064514      
     6000    -0.100020     6000    0.052291      6000    0.005316      
     7014    -0.029640     7014    0.013288      7014    0.001351      
     8016    -0.759414     8016    0.298046      8016    0.030299      
     11023   -0.001850     11023   0.000505      11023   0.000051      
     12000   -0.000040     12000   0.000010      12000   0.000001      
     14000   -0.000030     14000   0.000007      14000   0.000001      
     15031   -0.000350     15031   0.000071      15031   0.000007      
     16000   -0.001850     16000   0.000362      16000   0.000037      
     17000   -0.002780     17000   0.000492      17000   0.000050      
     19000   -0.001630     19000   0.000262      19000   0.000027      
     20000   -0.000060     20000   0.000009      20000   0.000001      
     26000   -0.000460     26000   0.000052      26000   0.000005      
     30000   -0.000010     30000   0.000001      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101866     1000    0.634604      1000    0.064514      
     6000    -0.100020     6000    0.052291      6000    0.005316      
     7000    -0.029640     7000    0.013288      7000    0.001351      
     8000    -0.759414     8000    0.298046      8000    0.030299      
     11000   -0.001850     11000   0.000505      11000   0.000051      
     12000   -0.000040     12000   0.000010      12000   0.000001      
     14000   -0.000030     14000   0.000007      14000   0.000001      
     15000   -0.000350     15000   0.000071      15000   0.000007      
     16000   -0.001850     16000   0.000362      16000   0.000037      
     17000   -0.002780     17000   0.000492      17000   0.000050      
     19000   -0.001630     19000   0.000262      19000   0.000027      
     20000   -0.000060     20000   0.000009      20000   0.000001      
     26000   -0.000460     26000   0.000052      26000   0.000005      
     30000   -0.000010     30000   0.000001      30000   0.000000      
********************************************************************************

********************************************************************************
  30  : Bone Equivalent Plastic, B-100 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.450000 
  Total atom density (atoms/b-cm) = 1.104E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.065471      0.513809      0.056720      
  C         6000         6000         0.536945      0.353630      0.039037      
  N         7014         7000         0.021500      0.012142      0.001340      
  O         8016         8000         0.032085      0.015863      0.001751      
  F         9019         9000         0.167411      0.069703      0.007695      
  Ca        20000        20000        0.176589      0.034853      0.003847      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.065471     1001    0.513809      1001    0.056720      
     6000    -0.536945     6000    0.353630      6000    0.039037      
     7014    -0.021500     7014    0.012142      7014    0.001340      
     8016    -0.032085     8016    0.015863      8016    0.001751      
     9019    -0.167411     9019    0.069703      9019    0.007695      
     20000   -0.176589     20000   0.034853      20000   0.003847      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.065471     1000    0.513809      1000    0.056720      
     6000    -0.536945     6000    0.353630      6000    0.039037      
     7000    -0.021500     7000    0.012142      7000    0.001340      
     8000    -0.032085     8000    0.015863      8000    0.001751      
     9000    -0.167411     9000    0.069703      9000    0.007695      
     20000   -0.176589     20000   0.034853      20000   0.003847      
********************************************************************************

********************************************************************************
  31  : Bone Equivalent Plastic, B-110 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.785000 
  Total atom density (atoms/b-cm) = 9.798E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.035500      0.386404      0.037860      
  C         6000         6000         0.367300      0.335506      0.032873      
  N         7014         7000         0.039700      0.031096      0.003047      
  O         8016         8000         0.045300      0.031063      0.003044      
  F         9019         9000         0.249300      0.143964      0.014106      
  Ca        20000        20000        0.262900      0.071967      0.007051      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.035500     1001    0.386404      1001    0.037860      
     6000    -0.367300     6000    0.335506      6000    0.032873      
     7014    -0.039700     7014    0.031096      7014    0.003047      
     8016    -0.045300     8016    0.031063      8016    0.003044      
     9019    -0.249300     9019    0.143964      9019    0.014106      
     20000   -0.262900     20000   0.071967      20000   0.007051      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.035500     1000    0.386404      1000    0.037860      
     6000    -0.367300     6000    0.335506      6000    0.032873      
     7000    -0.039700     7000    0.031096      7000    0.003047      
     8000    -0.045300     8000    0.031063      8000    0.003044      
     9000    -0.249300     9000    0.143964      9000    0.014106      
     20000   -0.262900     20000   0.071967      20000   0.007051      
********************************************************************************

********************************************************************************
  32  : Bone, Compact (ICRU) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.850000 
  Total atom density (atoms/b-cm) = 1.340E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.063984      0.527886      0.070723      
  C         6000         6000         0.278000      0.192478      0.025787      
  N         7014         7000         0.027000      0.016030      0.002148      
  O         8016         8000         0.410016      0.213109      0.028551      
  Mg        12000        12000        0.002000      0.000684      0.000092      
  P         15031        15000        0.070000      0.018794      0.002518      
  S         16000        16000        0.002000      0.000519      0.000069      
  Ca        20000        20000        0.147000      0.030501      0.004086      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.063984     1001    0.527886      1001    0.070723      
     6000    -0.278000     6000    0.192478      6000    0.025787      
     7014    -0.027000     7014    0.016030      7014    0.002148      
     8016    -0.410016     8016    0.213109      8016    0.028551      
     12000   -0.002000     12000   0.000684      12000   0.000092      
     15031   -0.070000     15031   0.018794      15031   0.002518      
     16000   -0.002000     16000   0.000519      16000   0.000069      
     20000   -0.147000     20000   0.030501      20000   0.004086      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.063984     1000    0.527886      1000    0.070723      
     6000    -0.278000     6000    0.192478      6000    0.025787      
     7000    -0.027000     7000    0.016030      7000    0.002148      
     8000    -0.410016     8000    0.213109      8000    0.028551      
     12000   -0.002000     12000   0.000684      12000   0.000092      
     15000   -0.070000     15000   0.018794      15000   0.002518      
     16000   -0.002000     16000   0.000519      16000   0.000069      
     20000   -0.147000     20000   0.030501      20000   0.004086      
********************************************************************************

********************************************************************************
  33  : Bone, Cortical (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.850000 
  Total atom density (atoms/b-cm) = 1.098E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.047234      0.475389      0.052209      
  C         6000         6000         0.144330      0.121904      0.013388      
  N         7014         7000         0.041990      0.030412      0.003340      
  O         8016         8000         0.446096      0.282848      0.031063      
  Mg        12000        12000        0.002200      0.000918      0.000101      
  P         15031        15000        0.104970      0.034380      0.003776      
  S         16000        16000        0.003150      0.000997      0.000109      
  Ca        20000        20000        0.209930      0.053137      0.005836      
  Zn        30000        30000        0.000100      0.000016      0.000002      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.047234     1001    0.475389      1001    0.052209      
     6000    -0.144330     6000    0.121904      6000    0.013388      
     7014    -0.041990     7014    0.030412      7014    0.003340      
     8016    -0.446096     8016    0.282848      8016    0.031063      
     12000   -0.002200     12000   0.000918      12000   0.000101      
     15031   -0.104970     15031   0.034380      15031   0.003776      
     16000   -0.003150     16000   0.000997      16000   0.000109      
     20000   -0.209930     20000   0.053137      20000   0.005836      
     30000   -0.000100     30000   0.000016      30000   0.000002      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.047234     1000    0.475389      1000    0.052209      
     6000    -0.144330     6000    0.121904      6000    0.013388      
     7000    -0.041990     7000    0.030412      7000    0.003340      
     8000    -0.446096     8000    0.282848      8000    0.031063      
     12000   -0.002200     12000   0.000918      12000   0.000101      
     15000   -0.104970     15000   0.034380      15000   0.003776      
     16000   -0.003150     16000   0.000997      16000   0.000109      
     20000   -0.209930     20000   0.053137      20000   0.005836      
     30000   -0.000100     30000   0.000016      30000   0.000002      
********************************************************************************

********************************************************************************
  34  : Boral (65% Al-35% B4C) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.530000 
  Total atom density (atoms/b-cm) = 8.496E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.274000      0.454507      0.038615      
  C         6000         6000         0.076000      0.113475      0.009641      
  Al        13027        13000        0.650000      0.432018      0.036704      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.274000     -       0.454507      -       0.038615      
     6000    -0.076000     6000    0.113475      6000    0.009641      
     13027   -0.650000     13027   0.432018      13027   0.036704      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.274000     5000    0.454507      5000    0.038615      
     6000    -0.076000     6000    0.113475      6000    0.009641      
     13000   -0.650000     13000   0.432018      13000   0.036704      
********************************************************************************

********************************************************************************
  35  : Boral (Aluminum 10% boron alloy) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.600000 
  Total atom density (atoms/b-cm) = 6.647E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.100000      0.217879      0.014483      
  Na        11023        11000        0.005000      0.005123      0.000341      
  Al        13027        13000        0.879000      0.767366      0.051009      
  Si        14000        14000        0.002500      0.002097      0.000139      
  K         19000        19000        0.010000      0.006025      0.000400      
  Ti        22000        22000        0.000500      0.000246      0.000016      
  Fe        26000        26000        0.003000      0.001265      0.000084      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.100000     -       0.217879      -       0.014483      
     11023   -0.005000     11023   0.005123      11023   0.000341      
     13027   -0.879000     13027   0.767366      13027   0.051009      
     14000   -0.002500     14000   0.002097      14000   0.000139      
     19000   -0.010000     19000   0.006025      19000   0.000400      
     22000   -0.000500     22000   0.000246      22000   0.000016      
     26000   -0.003000     26000   0.001265      26000   0.000084      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.100000     5000    0.217879      5000    0.014483      
     11000   -0.005000     11000   0.005123      11000   0.000341      
     13000   -0.879000     13000   0.767366      13000   0.051009      
     14000   -0.002500     14000   0.002097      14000   0.000139      
     19000   -0.010000     19000   0.006025      19000   0.000400      
     22000   -0.000500     22000   0.000246      22000   0.000016      
     26000   -0.003000     26000   0.001265      26000   0.000084      
********************************************************************************

********************************************************************************
  36  : Boral (Aluminum 5% boron alloy) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.600000 
  Total atom density (atoms/b-cm) = 6.213E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.050000      0.116547      0.007241      
  Na        11023        11000        0.005000      0.005481      0.000341      
  Al        13027        13000        0.929500      0.868116      0.053940      
  Si        14000        14000        0.002000      0.001794      0.000111      
  K         19000        19000        0.010000      0.006445      0.000400      
  Ti        22000        22000        0.000500      0.000263      0.000016      
  Fe        26000        26000        0.003000      0.001354      0.000084      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.050000     -       0.116547      -       0.007241      
     11023   -0.005000     11023   0.005481      11023   0.000341      
     13027   -0.929500     13027   0.868116      13027   0.053940      
     14000   -0.002000     14000   0.001794      14000   0.000111      
     19000   -0.010000     19000   0.006445      19000   0.000400      
     22000   -0.000500     22000   0.000263      22000   0.000016      
     26000   -0.003000     26000   0.001354      26000   0.000084      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.050000     5000    0.116547      5000    0.007241      
     11000   -0.005000     11000   0.005481      11000   0.000341      
     13000   -0.929500     13000   0.868116      13000   0.053940      
     14000   -0.002000     14000   0.001794      14000   0.000111      
     19000   -0.010000     19000   0.006445      19000   0.000400      
     22000   -0.000500     22000   0.000263      22000   0.000016      
     26000   -0.003000     26000   0.001354      26000   0.000084      
********************************************************************************

********************************************************************************
  37  : Borax 
  Source = PNNL-15870 Rev. 1 
  Formula = NA2B4O7-10(H2O) 
  Molecular weight (g/mole) = 381.37214 
  Density (g/cm3) = 1.730000 
  Total atom density (atoms/b-cm) = 1.175E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.052859      0.465116      0.054636      
  B         -            5000         0.113391      0.093023      0.010927      
  O         8016         8000         0.713187      0.395349      0.046441      
  Na        11023        11000        0.120563      0.046512      0.005464      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.052859     1001    0.465116      1001    0.054636      
     -       -0.113391     -       0.093023      -       0.010927      
     8016    -0.713187     8016    0.395349      8016    0.046441      
     11023   -0.120563     11023   0.046512      11023   0.005464      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.052859     1000    0.465116      1000    0.054636      
     5000    -0.113391     5000    0.093023      5000    0.010927      
     8000    -0.713187     8000    0.395349      8000    0.046441      
     11000   -0.120563     11000   0.046512      11000   0.005464      
********************************************************************************

********************************************************************************
  38  : Boric Acid 
  Source = PNNL-15870 Rev. 1 
  Formula = H3BO3 
  Molecular weight (g/mole) = 61.83302 
  Density (g/cm3) = 1.500000 
  Total atom density (atoms/b-cm) = 1.023E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.048903      0.428571      0.043827      
  B         -            5000         0.174842      0.142857      0.014609      
  O         8016         8000         0.776255      0.428571      0.043827      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.048903     1001    0.428571      1001    0.043827      
     -       -0.174842     -       0.142857      -       0.014609      
     8016    -0.776255     8016    0.428571      8016    0.043827      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.048903     1000    0.428571      1000    0.043827      
     5000    -0.174842     5000    0.142857      5000    0.014609      
     8000    -0.776255     8000    0.428571      8000    0.043827      
********************************************************************************

********************************************************************************
  39  : Boron 
  Source = PNNL-15870 Rev. 1 
  Formula = B 
  Molecular weight (g/mole) = 10.811 
  Density (g/cm3) = 2.370000 
  Total atom density (atoms/b-cm) = 1.320E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         1.000000      1.000000      0.132018      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -1.000000     -       1.000000      -       0.132018      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -1.000000     5000    1.000000      5000    0.132018      
********************************************************************************

********************************************************************************
  40  : Boron Carbide 
  Source = PNNL-15870 Rev. 1 
  Formula = B4C 
  Molecular weight (g/mole) = 55.2547 
  Density (g/cm3) = 2.520000 
  Total atom density (atoms/b-cm) = 1.373E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.782610      0.799981      0.109858      
  C         6000         6000         0.217390      0.200019      0.027468      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.782610     -       0.799981      -       0.109858      
     6000    -0.217390     6000    0.200019      6000    0.027468      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.782610     5000    0.799981      5000    0.109858      
     6000    -0.217390     6000    0.200019      6000    0.027468      
********************************************************************************

********************************************************************************
  41  : Boron Fluoride (B2F4) 
  Source = PNNL-15870 Rev. 1 
  Formula = B2F4 
  Molecular weight (g/mole) = 97.6156128 
  Density (g/cm3) = 0.004058 
  Total atom density (atoms/b-cm) = 1.502E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.221501      0.333333      0.000050      
  F         9019         9000         0.778499      0.666667      0.000100      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.221501     -       0.333333      -       0.000050      
     9019    -0.778499     9019    0.666667      9019    0.000100      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.221501     5000    0.333333      5000    0.000050      
     9000    -0.778499     9000    0.666667      9000    0.000100      
********************************************************************************

********************************************************************************
  42  : Boron Fluoride (BF3) 
  Source = PNNL-15870 Rev. 1 
  Formula = BF3 
  Molecular weight (g/mole) = 67.8062096 
  Density (g/cm3) = 0.002831 
  Total atom density (atoms/b-cm) = 1.006E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.159440      0.250000      0.000025      
  F         9019         9000         0.840560      0.750000      0.000075      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.159440     -       0.250000      -       0.000025      
     9019    -0.840560     9019    0.750000      9019    0.000075      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.159440     5000    0.250000      5000    0.000025      
     9000    -0.840560     9000    0.750000      9000    0.000075      
********************************************************************************

********************************************************************************
  43  : Boron Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = B2O3 
  Molecular weight (g/mole) = 69.6202 
  Density (g/cm3) = 1.812000 
  Total atom density (atoms/b-cm) = 7.837E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.310551      0.399978      0.031346      
  O         8016         8000         0.689449      0.600022      0.047023      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.310551     -       0.399978      -       0.031346      
     8016    -0.689449     8016    0.600022      8016    0.047023      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.310551     5000    0.399978      5000    0.031346      
     8000    -0.689449     8000    0.600022      8000    0.047023      
********************************************************************************

********************************************************************************
  44  : Brain (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.030000 
  Total atom density (atoms/b-cm) = 1.040E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.110667      0.654712      0.068104      
  C         6000         6000         0.125420      0.062268      0.006477      
  N         7014         7000         0.013280      0.005654      0.000588      
  O         8016         8000         0.737723      0.274952      0.028601      
  Na        11023        11000        0.001840      0.000477      0.000050      
  Mg        12000        12000        0.000150      0.000037      0.000004      
  P         15031        15000        0.003540      0.000682      0.000071      
  S         16000        16000        0.001770      0.000329      0.000034      
  Cl        17000        17000        0.002360      0.000397      0.000041      
  K         19000        19000        0.003100      0.000473      0.000049      
  Ca        20000        20000        0.000090      0.000013      0.000001      
  Fe        26000        26000        0.000050      0.000005      0.000001      
  Zn        30000        30000        0.000010      0.000001      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.110667     1001    0.654712      1001    0.068104      
     6000    -0.125420     6000    0.062268      6000    0.006477      
     7014    -0.013280     7014    0.005654      7014    0.000588      
     8016    -0.737723     8016    0.274952      8016    0.028601      
     11023   -0.001840     11023   0.000477      11023   0.000050      
     12000   -0.000150     12000   0.000037      12000   0.000004      
     15031   -0.003540     15031   0.000682      15031   0.000071      
     16000   -0.001770     16000   0.000329      16000   0.000034      
     17000   -0.002360     17000   0.000397      17000   0.000041      
     19000   -0.003100     19000   0.000473      19000   0.000049      
     20000   -0.000090     20000   0.000013      20000   0.000001      
     26000   -0.000050     26000   0.000005      26000   0.000001      
     30000   -0.000010     30000   0.000001      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.110667     1000    0.654712      1000    0.068104      
     6000    -0.125420     6000    0.062268      6000    0.006477      
     7000    -0.013280     7000    0.005654      7000    0.000588      
     8000    -0.737723     8000    0.274952      8000    0.028601      
     11000   -0.001840     11000   0.000477      11000   0.000050      
     12000   -0.000150     12000   0.000037      12000   0.000004      
     15000   -0.003540     15000   0.000682      15000   0.000071      
     16000   -0.001770     16000   0.000329      16000   0.000034      
     17000   -0.002360     17000   0.000397      17000   0.000041      
     19000   -0.003100     19000   0.000473      19000   0.000049      
     20000   -0.000090     20000   0.000013      20000   0.000001      
     26000   -0.000050     26000   0.000005      26000   0.000001      
     30000   -0.000010     30000   0.000001      30000   0.000000      
********************************************************************************

********************************************************************************
  45  : Brass (typical composition) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.070000 
  Total atom density (atoms/b-cm) = 7.540E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Fe        26000        26000        0.000868      0.001002      0.000076      
  Cu        29000        29000        0.665381      0.674918      0.050887      
  Zn        30000        30000        0.325697      0.320956      0.024199      
  Sn        50000        50000        0.002672      0.001451      0.000109      
  Pb        82000        82000        0.005377      0.001673      0.000126      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     26000   -0.000868     26000   0.001002      26000   0.000076      
     29000   -0.665381     29000   0.674918      29000   0.050887      
     30000   -0.325697     30000   0.320956      30000   0.024199      
     50000   -0.002672     50000   0.001451      50000   0.000109      
     82000   -0.005377     82000   0.001673      82000   0.000126      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     26000   -0.000868     26000   0.001002      26000   0.000076      
     29000   -0.665381     29000   0.674918      29000   0.050887      
     30000   -0.325697     30000   0.320956      30000   0.024199      
     50000   -0.002672     50000   0.001451      50000   0.000109      
     82000   -0.005377     82000   0.001673      82000   0.000126      
********************************************************************************

********************************************************************************
  46  : Brick, Common Silica 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.800000 
  Total atom density (atoms/b-cm) = 5.361E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.525000      0.663432      0.035570      
  AL        13027        13000        0.005000      0.003747      0.000201      
  Si        14000        14000        0.449000      0.323225      0.017330      
  Ca        20000        20000        0.014000      0.007063      0.000379      
  Fe        26000        26000        0.007000      0.002534      0.000136      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.525000     8016    0.663432      8016    0.035570      
     13027   -0.005000     13027   0.003747      13027   0.000201      
     14000   -0.449000     14000   0.323225      14000   0.017330      
     20000   -0.014000     20000   0.007063      20000   0.000379      
     26000   -0.007000     26000   0.002534      26000   0.000136      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.525000     8000    0.663432      8000    0.035570      
     13000   -0.005000     13000   0.003747      13000   0.000201      
     14000   -0.449000     14000   0.323225      14000   0.017330      
     20000   -0.014000     20000   0.007063      20000   0.000379      
     26000   -0.007000     26000   0.002534      26000   0.000136      
********************************************************************************

********************************************************************************
  47  : Brick, Fire 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.100000 
  Total atom density (atoms/b-cm) = 6.174E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.497000      0.636337      0.039285      
  Mg        12000        12000        0.006000      0.005057      0.000312      
  Al        13027        13000        0.212000      0.160955      0.009937      
  Si        14000        14000        0.252000      0.183803      0.011347      
  Ca        20000        20000        0.007000      0.003578      0.000221      
  Ti        22000        22000        0.012000      0.005135      0.000317      
  Fe        26000        26000        0.014000      0.005135      0.000317      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.497000     8016    0.636337      8016    0.039285      
     12000   -0.006000     12000   0.005057      12000   0.000312      
     13027   -0.212000     13027   0.160955      13027   0.009937      
     14000   -0.252000     14000   0.183803      14000   0.011347      
     20000   -0.007000     20000   0.003578      20000   0.000221      
     22000   -0.012000     22000   0.005135      22000   0.000317      
     26000   -0.014000     26000   0.005135      26000   0.000317      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.497000     8000    0.636337      8000    0.039285      
     12000   -0.006000     12000   0.005057      12000   0.000312      
     13000   -0.212000     13000   0.160955      13000   0.009937      
     14000   -0.252000     14000   0.183803      14000   0.011347      
     20000   -0.007000     20000   0.003578      20000   0.000221      
     22000   -0.012000     22000   0.005135      22000   0.000317      
     26000   -0.014000     26000   0.005135      26000   0.000317      
********************************************************************************

********************************************************************************
  48  : Brick, Kaolin (white) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.100000 
  Total atom density (atoms/b-cm) = 6.221E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.500318      0.635745      0.039547      
  Mg        12000        12000        0.001205      0.001008      0.000063      
  Al        13027        13000        0.240568      0.181264      0.011276      
  Si        14000        14000        0.242823      0.175771      0.010934      
  Ca        20000        20000        0.000714      0.000362      0.000023      
  Ti        22000        22000        0.010179      0.004323      0.000269      
  Fe        26000        26000        0.004192      0.001526      0.000095      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.500318     8016    0.635745      8016    0.039547      
     12000   -0.001205     12000   0.001008      12000   0.000063      
     13027   -0.240568     13027   0.181264      13027   0.011276      
     14000   -0.242823     14000   0.175771      14000   0.010934      
     20000   -0.000714     20000   0.000362      20000   0.000023      
     22000   -0.010179     22000   0.004323      22000   0.000269      
     26000   -0.004192     26000   0.001526      26000   0.000095      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.500318     8000    0.635745      8000    0.039547      
     12000   -0.001205     12000   0.001008      12000   0.000063      
     13000   -0.240568     13000   0.181264      13000   0.011276      
     14000   -0.242823     14000   0.175771      14000   0.010934      
     20000   -0.000714     20000   0.000362      20000   0.000023      
     22000   -0.010179     22000   0.004323      22000   0.000269      
     26000   -0.004192     26000   0.001526      26000   0.000095      
********************************************************************************

********************************************************************************
  49  : Bronze (typical composition) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.400000 
  Total atom density (atoms/b-cm) = 8.152E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Al        13027        13000        0.028528      0.065613      0.005349      
  Si        14000        14000        0.003339      0.007378      0.000601      
  Mn        25055        25000        0.003555      0.004015      0.000327      
  Fe        26000        26000        0.010208      0.011344      0.000925      
  Ni        28000        28000        0.006718      0.007103      0.000579      
  Cu        29000        29000        0.874157      0.853667      0.069588      
  Zn        30000        30000        0.036037      0.034190      0.002787      
  Sn        50000        50000        0.024503      0.012809      0.001044      
  Pb        82000        82000        0.012957      0.003881      0.000316      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13027   -0.028528     13027   0.065613      13027   0.005349      
     14000   -0.003339     14000   0.007378      14000   0.000601      
     25055   -0.003555     25055   0.004015      25055   0.000327      
     26000   -0.010208     26000   0.011344      26000   0.000925      
     28000   -0.006718     28000   0.007103      28000   0.000579      
     29000   -0.874157     29000   0.853667      29000   0.069588      
     30000   -0.036037     30000   0.034190      30000   0.002787      
     50000   -0.024503     50000   0.012809      50000   0.001044      
     82000   -0.012957     82000   0.003881      82000   0.000316      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     13000   -0.028528     13000   0.065613      13000   0.005349      
     14000   -0.003339     14000   0.007378      14000   0.000601      
     25000   -0.003555     25000   0.004015      25000   0.000327      
     26000   -0.010208     26000   0.011344      26000   0.000925      
     28000   -0.006718     28000   0.007103      28000   0.000579      
     29000   -0.874157     29000   0.853667      29000   0.069588      
     30000   -0.036037     30000   0.034190      30000   0.002787      
     50000   -0.024503     50000   0.012809      50000   0.001044      
     82000   -0.012957     82000   0.003881      82000   0.000316      
********************************************************************************

********************************************************************************
  50  : C-552 Air-Equivalent Plastic 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.760000 
  Total atom density (atoms/b-cm) = 9.662E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.024680      0.268599      0.025952      
  C         6000         6000         0.501610      0.458133      0.044265      
  O         8016         8000         0.004527      0.003104      0.000300      
  F         9019         9000         0.465209      0.268612      0.025953      
  Si        14000        14000        0.003973      0.001552      0.000150      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.024680     1001    0.268599      1001    0.025952      
     6000    -0.501610     6000    0.458133      6000    0.044265      
     8016    -0.004527     8016    0.003104      8016    0.000300      
     9019    -0.465209     9019    0.268612      9019    0.025953      
     14000   -0.003973     14000   0.001552      14000   0.000150      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.024680     1000    0.268599      1000    0.025952      
     6000    -0.501610     6000    0.458133      6000    0.044265      
     8000    -0.004527     8000    0.003104      8000    0.000300      
     9000    -0.465209     9000    0.268612      9000    0.025953      
     14000   -0.003973     14000   0.001552      14000   0.000150      
********************************************************************************

********************************************************************************
  51  : Cadmium 
  Source = PNNL-15870 Rev. 1 
  Formula = Cd 
  Molecular weight (g/mole) = 112.411 
  Density (g/cm3) = 8.650000 
  Total atom density (atoms/b-cm) = 4.634E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Cd        48000        48000        1.000000      1.000000      0.046340      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     48000   -1.000000     48000   1.000000      48000   0.046340      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     48000   -1.000000     48000   1.000000      48000   0.046340      
********************************************************************************

********************************************************************************
  52  : Cadmium Nitrate Tetrahydrate 
  Source = PNNL-15870 Rev. 1 
  Formula = Cd(NO3)2-4(H2O) 
  Molecular weight (g/mole) = 308.48192 
  Density (g/cm3) = 2.450000 
  Total atom density (atoms/b-cm) = 1.004E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.026139      0.380952      0.038263      
  N         7014         7000         0.090811      0.095238      0.009566      
  O         8016         8000         0.518650      0.476190      0.047829      
  Cd        48000        48000        0.364401      0.047619      0.004783      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.026139     1001    0.380952      1001    0.038263      
     7014    -0.090811     7014    0.095238      7014    0.009566      
     8016    -0.518650     8016    0.476190      8016    0.047829      
     48000   -0.364401     48000   0.047619      48000   0.004783      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.026139     1000    0.380952      1000    0.038263      
     7000    -0.090811     7000    0.095238      7000    0.009566      
     8000    -0.518650     8000    0.476190      8000    0.047829      
     48000   -0.364401     48000   0.047619      48000   0.004783      
********************************************************************************

********************************************************************************
  53  : Cadmium Telluride 
  Source = PNNL-15870 Rev. 1 
  Formula = CdTe 
  Molecular weight (g/mole) = 240.011 
  Density (g/cm3) = 6.200000 
  Total atom density (atoms/b-cm) = 3.111E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Cd        48000        48000        0.468355      0.499997      0.015556      
  Te        -            52000        0.531645      0.500003      0.015557      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     48000   -0.468355     48000   0.499997      48000   0.015556      
     -       -0.531645     -       0.500003      -       0.015557      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     48000   -0.468355     48000   0.499997      48000   0.015556      
     52000   -0.531645     52000   0.500003      52000   0.015557      
********************************************************************************

********************************************************************************
  54  : Cadmium Tungstate (CWO) 
  Source = PNNL-15870 Rev. 1 
  Formula = CdWO4 
  Molecular weight (g/mole) = 360.2486 
  Density (g/cm3) = 7.900000 
  Total atom density (atoms/b-cm) = 7.924E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.177644      0.666662      0.052823      
  Cd        48000        48000        0.312027      0.166664      0.013206      
  W         74000        74000        0.510329      0.166674      0.013207      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.177644     8016    0.666662      8016    0.052823      
     48000   -0.312027     48000   0.166664      48000   0.013206      
     74000   -0.510329     74000   0.166674      74000   0.013207      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.177644     8000    0.666662      8000    0.052823      
     48000   -0.312027     48000   0.166664      48000   0.013206      
     74000   -0.510329     74000   0.166674      74000   0.013207      
********************************************************************************

********************************************************************************
  55  : Calcium Carbonate 
  Source = PNNL-15870 Rev. 1 
  Formula = CaCO3 
  Molecular weight (g/mole) = 100.0869 
  Density (g/cm3) = 2.800000 
  Total atom density (atoms/b-cm) = 8.424E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.120003      0.200002      0.016847      
  O         8016         8000         0.479554      0.599991      0.050541      
  Ca        20000        20000        0.400443      0.200007      0.016848      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.120003     6000    0.200002      6000    0.016847      
     8016    -0.479554     8016    0.599991      8016    0.050541      
     20000   -0.400443     20000   0.200007      20000   0.016848      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.120003     6000    0.200002      6000    0.016847      
     8000    -0.479554     8000    0.599991      8000    0.050541      
     20000   -0.400443     20000   0.200007      20000   0.016848      
********************************************************************************

********************************************************************************
  56  : Calcium Fluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = CaF2 
  Molecular weight (g/mole) = 78.0748064 
  Density (g/cm3) = 3.180000 
  Total atom density (atoms/b-cm) = 7.358E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.486659      0.666655      0.049055      
  Ca        20000        20000        0.513341      0.333345      0.024529      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.486659     9019    0.666655      9019    0.049055      
     20000   -0.513341     20000   0.333345      20000   0.024529      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.486659     9000    0.666655      9000    0.049055      
     20000   -0.513341     20000   0.333345      20000   0.024529      
********************************************************************************

********************************************************************************
  57  : Calcium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = CaO 
  Molecular weight (g/mole) = 56.0774 
  Density (g/cm3) = 3.300000 
  Total atom density (atoms/b-cm) = 7.088E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.285299      0.499987      0.035437      
  Ca        20000        20000        0.714701      0.500013      0.035439      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.285299     8016    0.499987      8016    0.035437      
     20000   -0.714701     20000   0.500013      20000   0.035439      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.285299     8000    0.499987      8000    0.035437      
     20000   -0.714701     20000   0.500013      20000   0.035439      
********************************************************************************

********************************************************************************
  58  : Calcium Sulfate 
  Source = PNNL-15870 Rev. 1 
  Formula = CaSO4 
  Molecular weight (g/mole) = 136.1406 
  Density (g/cm3) = 2.960000 
  Total atom density (atoms/b-cm) = 7.856E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.470095      0.666678      0.052375      
  S         16000        16000        0.235497      0.166644      0.013092      
  Ca        20000        20000        0.294408      0.166678      0.013094      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.470095     8016    0.666678      8016    0.052375      
     16000   -0.235497     16000   0.166644      16000   0.013092      
     20000   -0.294408     20000   0.166678      20000   0.013094      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.470095     8000    0.666678      8000    0.052375      
     16000   -0.235497     16000   0.166644      16000   0.013092      
     20000   -0.294408     20000   0.166678      20000   0.013094      
********************************************************************************

********************************************************************************
  59  : Carbon Dioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = CO2 
  Molecular weight (g/mole) = 44.0095 
  Density (g/cm3) = 0.001842 
  Total atom density (atoms/b-cm) = 7.562E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.272912      0.333333      0.000025      
  O         8016         8000         0.727088      0.666667      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.272912     6000    0.333333      6000    0.000025      
     8016    -0.727088     8016    0.666667      8016    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.272912     6000    0.333333      6000    0.000025      
     8000    -0.727088     8000    0.666667      8000    0.000050      
********************************************************************************

********************************************************************************
  60  : Carbon Tetrachloride 
  Source = PNNL-15870 Rev. 1 
  Formula = CCl4 
  Molecular weight (g/mole) = 153.8227 
  Density (g/cm3) = 1.594000 
  Total atom density (atoms/b-cm) = 3.120E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.078083      0.200003      0.006241      
  Cl        17000        17000        0.921917      0.799997      0.024962      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.078083     6000    0.200003      6000    0.006241      
     17000   -0.921917     17000   0.799997      17000   0.024962      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.078083     6000    0.200003      6000    0.006241      
     17000   -0.921917     17000   0.799997      17000   0.024962      
********************************************************************************

********************************************************************************
  61  : Carbon, Activated 
  Source = PNNL-15870 Rev. 1 
  Formula = C 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.320000 
  Total atom density (atoms/b-cm) = 1.604E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.000001      0.000001      0.000000      
  C         6000         6000         0.999999      0.999999      0.016045      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.000001     -       0.000001      -       0.000000      
     6000    -0.999999     6000    0.999999      6000    0.016045      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.000001     5000    0.000001      5000    0.000000      
     6000    -0.999999     6000    0.999999      6000    0.016045      
********************************************************************************

********************************************************************************
  62  : Carbon, Amorphous 
  Source = PNNL-15870 Rev. 1 
  Formula = C 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.000000 
  Total atom density (atoms/b-cm) = 1.003E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.000001      0.000001      0.000000      
  C         6000         6000         0.999999      0.999999      0.100280      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.000001     -       0.000001      -       0.000000      
     6000    -0.999999     6000    0.999999      6000    0.100280      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.000001     5000    0.000001      5000    0.000000      
     6000    -0.999999     6000    0.999999      6000    0.100280      
********************************************************************************

********************************************************************************
  63  : Carbon, Graphite (reactor grade) 
  Source = PNNL-15870 Rev. 1 
  Formula = C 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.700000 
  Total atom density (atoms/b-cm) = 8.524E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.000001      0.000001      0.000000      
  C         6000         6000         0.999999      0.999999      0.085238      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.000001     -       0.000001      -       0.000000      
     6000    -0.999999     6000    0.999999      6000    0.085238      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.000001     5000    0.000001      5000    0.000000      
     6000    -0.999999     6000    0.999999      6000    0.085238      
********************************************************************************

********************************************************************************
  64  : Cat litter (clumping) 
  Source = PNNL-15870 Rev. 1 
  Formula = Na0.2Ca0.1Al2Si4O10(OH)2(H2O)10 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.100000 
  Total atom density (atoms/b-cm) = 6.070E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.040400      0.437442      0.026552      
  O         8016         8000         0.641100      0.437316      0.026544      
  Na        11023        11000        0.008400      0.003988      0.000242      
  Al        13027        13000        0.098300      0.039761      0.002413      
  Si        14000        14000        0.204600      0.079505      0.004826      
  Ca        20000        20000        0.007300      0.001988      0.000121      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.040400     1001    0.437442      1001    0.026552      
     8016    -0.641100     8016    0.437316      8016    0.026544      
     11023   -0.008400     11023   0.003988      11023   0.000242      
     13027   -0.098300     13027   0.039761      13027   0.002413      
     14000   -0.204600     14000   0.079505      14000   0.004826      
     20000   -0.007300     20000   0.001988      20000   0.000121      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.040400     1000    0.437442      1000    0.026552      
     8000    -0.641100     8000    0.437316      8000    0.026544      
     11000   -0.008400     11000   0.003988      11000   0.000242      
     13000   -0.098300     13000   0.039761      13000   0.002413      
     14000   -0.204600     14000   0.079505      14000   0.004826      
     20000   -0.007300     20000   0.001988      20000   0.000121      
********************************************************************************

********************************************************************************
  65  : Cat litter (non-clumping) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.100000 
  Total atom density (atoms/b-cm) = 4.231E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.013732      0.213314      0.009025      
  O         8016         8000         0.539919      0.528366      0.022355      
  Na        11023        11000        0.043271      0.029469      0.001247      
  Mg        12000        12000        0.050466      0.032510      0.001375      
  Al        13027        13000        0.052132      0.030252      0.001280      
  Si        14000        14000        0.293185      0.163444      0.006915      
  K         19000        19000        0.003765      0.001508      0.000064      
  Ca        20000        20000        0.001341      0.000524      0.000022      
  Fe        26000        26000        0.002188      0.000613      0.000026      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.013732     1001    0.213314      1001    0.009025      
     8016    -0.539919     8016    0.528366      8016    0.022355      
     11023   -0.043271     11023   0.029469      11023   0.001247      
     12000   -0.050466     12000   0.032510      12000   0.001375      
     13027   -0.052132     13027   0.030252      13027   0.001280      
     14000   -0.293185     14000   0.163444      14000   0.006915      
     19000   -0.003765     19000   0.001508      19000   0.000064      
     20000   -0.001341     20000   0.000524      20000   0.000022      
     26000   -0.002188     26000   0.000613      26000   0.000026      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.013732     1000    0.213314      1000    0.009025      
     8000    -0.539919     8000    0.528366      8000    0.022355      
     11000   -0.043271     11000   0.029469      11000   0.001247      
     12000   -0.050466     12000   0.032510      12000   0.001375      
     13000   -0.052132     13000   0.030252      13000   0.001280      
     14000   -0.293185     14000   0.163444      14000   0.006915      
     19000   -0.003765     19000   0.001508      19000   0.000064      
     20000   -0.001341     20000   0.000524      20000   0.000022      
     26000   -0.002188     26000   0.000613      26000   0.000026      
********************************************************************************

********************************************************************************
  66  : Cellulose Acetate 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.420000 
  Total atom density (atoms/b-cm) = 1.108E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.062162      0.476179      0.052739      
  C         6000         6000         0.444462      0.285724      0.031645      
  O         8016         8000         0.493376      0.238097      0.026370      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.062162     1001    0.476179      1001    0.052739      
     6000    -0.444462     6000    0.285724      6000    0.031645      
     8016    -0.493376     8016    0.238097      8016    0.026370      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.062162     1000    0.476179      1000    0.052739      
     6000    -0.444462     6000    0.285724      6000    0.031645      
     8000    -0.493376     8000    0.238097      8000    0.026370      
********************************************************************************

********************************************************************************
  67  : Celotex 
  Source = PNNL-15870 Rev. 1 
  Formula = C6H10O5 
  Molecular weight (g/mole) = 162.1406 
  Density (g/cm3) = 0.240000 
  Total atom density (atoms/b-cm) = 1.872E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.062165      0.476190      0.008914      
  C         6000         6000         0.444455      0.285714      0.005348      
  O         8016         8000         0.493380      0.238095      0.004457      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.062165     1001    0.476190      1001    0.008914      
     6000    -0.444455     6000    0.285714      6000    0.005348      
     8016    -0.493380     8016    0.238095      8016    0.004457      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.062165     1000    0.476190      1000    0.008914      
     6000    -0.444455     6000    0.285714      6000    0.005348      
     8000    -0.493380     8000    0.238095      8000    0.004457      
********************************************************************************

********************************************************************************
  68  : Ceric Sulfate Dosimeter Solution 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O:Ce2SO4 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.030000 
  Total atom density (atoms/b-cm) = 1.005E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.107596      0.659087      0.066214      
  N         7014         7000         0.000800      0.000353      0.000035      
  O         8016         8000         0.874976      0.337656      0.033922      
  S         16000        16000        0.014627      0.002816      0.000283      
  Ce        -            58000        0.002001      0.000088      0.000009      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.107596     1001    0.659087      1001    0.066214      
     7014    -0.000800     7014    0.000353      7014    0.000035      
     8016    -0.874976     8016    0.337656      8016    0.033922      
     16000   -0.014627     16000   0.002816      16000   0.000283      
     -       -0.002001     -       0.000088      -       0.000009      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.107596     1000    0.659087      1000    0.066214      
     7000    -0.000800     7000    0.000353      7000    0.000035      
     8000    -0.874976     8000    0.337656      8000    0.033922      
     16000   -0.014627     16000   0.002816      16000   0.000283      
     58000   -0.002001     58000   0.000088      58000   0.000009      
********************************************************************************

********************************************************************************
  69  : Cerium Fluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = CeF3 
  Molecular weight (g/mole) = 197.1112096 
  Density (g/cm3) = 6.160000 
  Total atom density (atoms/b-cm) = 7.528E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.289153      0.750000      0.056460      
  Ce        -            58000        0.710847      0.250000      0.018820      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.289153     9019    0.750000      9019    0.056460      
     -       -0.710847     -       0.250000      -       0.018820      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.289153     9000    0.750000      9000    0.056460      
     58000   -0.710847     58000   0.250000      58000   0.018820      
********************************************************************************

********************************************************************************
  70  : Cesium Iodide 
  Source = PNNL-15870 Rev. 1 
  Formula = CsI 
  Molecular weight (g/mole) = 259.80992 
  Density (g/cm3) = 4.510000 
  Total atom density (atoms/b-cm) = 2.091E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  I         53127        53000        0.488451      0.500000      0.010454      
  Cs        55133        55000        0.511549      0.500000      0.010454      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53127   -0.488451     53127   0.500000      53127   0.010454      
     55133   -0.511549     55133   0.500000      55133   0.010454      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53000   -0.488451     53000   0.500000      53000   0.010454      
     55000   -0.511549     55000   0.500000      55000   0.010454      
********************************************************************************

********************************************************************************
  71  : Chromium 
  Source = PNNL-15870 Rev. 1 
  Formula = Cr 
  Molecular weight (g/mole) = 51.9961 
  Density (g/cm3) = 7.180000 
  Total atom density (atoms/b-cm) = 8.316E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Cr        24000        24000        1.000000      1.000000      0.083158      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     24000   -1.000000     24000   1.000000      24000   0.083158      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     24000   -1.000000     24000   1.000000      24000   0.083158      
********************************************************************************

********************************************************************************
  72  : Clay 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.200000 
  Total atom density (atoms/b-cm) = 6.333E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.484345      0.633300      0.040107      
  Na        11023        11000        0.007608      0.006923      0.000438      
  Mg        12000        12000        0.010691      0.009202      0.000583      
  Al        13027        13000        0.122125      0.094689      0.005997      
  Si        14000        14000        0.294194      0.219134      0.013878      
  P         15031        15000        0.000113      0.000076      0.000005      
  K         19000        19000        0.020427      0.010930      0.000692      
  Ca        20000        20000        0.018957      0.009895      0.000627      
  Ti        22000        22000        0.004668      0.002040      0.000129      
  Mn        25055        25000        0.000064      0.000024      0.000002      
  Fe        26000        26000        0.036804      0.013787      0.000873      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.484345     8016    0.633300      8016    0.040107      
     11023   -0.007608     11023   0.006923      11023   0.000438      
     12000   -0.010691     12000   0.009202      12000   0.000583      
     13027   -0.122125     13027   0.094689      13027   0.005997      
     14000   -0.294194     14000   0.219134      14000   0.013878      
     15031   -0.000113     15031   0.000076      15031   0.000005      
     19000   -0.020427     19000   0.010930      19000   0.000692      
     20000   -0.018957     20000   0.009895      20000   0.000627      
     22000   -0.004668     22000   0.002040      22000   0.000129      
     25055   -0.000064     25055   0.000024      25055   0.000002      
     26000   -0.036804     26000   0.013787      26000   0.000873      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.484345     8000    0.633300      8000    0.040107      
     11000   -0.007608     11000   0.006923      11000   0.000438      
     12000   -0.010691     12000   0.009202      12000   0.000583      
     13000   -0.122125     13000   0.094689      13000   0.005997      
     14000   -0.294194     14000   0.219134      14000   0.013878      
     15000   -0.000113     15000   0.000076      15000   0.000005      
     19000   -0.020427     19000   0.010930      19000   0.000692      
     20000   -0.018957     20000   0.009895      20000   0.000627      
     22000   -0.004668     22000   0.002040      22000   0.000129      
     25000   -0.000064     25000   0.000024      25000   0.000002      
     26000   -0.036804     26000   0.013787      26000   0.000873      
********************************************************************************

********************************************************************************
  73  : Coal, Anthracite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.840000 
  Total atom density (atoms/b-cm) = 5.269E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.024000      0.228612      0.012045      
  C         6000         6000         0.937000      0.749020      0.039464      
  N         7014         7000         0.009000      0.006169      0.000325      
  O         8016         8000         0.024000      0.014402      0.000759      
  S         16000        16000        0.006000      0.001797      0.000095      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.024000     1001    0.228612      1001    0.012045      
     6000    -0.937000     6000    0.749020      6000    0.039464      
     7014    -0.009000     7014    0.006169      7014    0.000325      
     8016    -0.024000     8016    0.014402      8016    0.000759      
     16000   -0.006000     16000   0.001797      16000   0.000095      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.024000     1000    0.228612      1000    0.012045      
     6000    -0.937000     6000    0.749020      6000    0.039464      
     7000    -0.009000     7000    0.006169      7000    0.000325      
     8000    -0.024000     8000    0.014402      8000    0.000759      
     16000   -0.006000     16000   0.001797      16000   0.000095      
********************************************************************************

********************************************************************************
  74  : Coal, Bituminous 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.750000 
  Total atom density (atoms/b-cm) = 5.954E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.056000      0.421425      0.025094      
  C         6000         6000         0.845000      0.533649      0.031776      
  N         7014         7000         0.016000      0.008665      0.000516      
  O         8016         8000         0.070000      0.033186      0.001976      
  S         16000        16000        0.013000      0.003075      0.000183      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.056000     1001    0.421425      1001    0.025094      
     6000    -0.845000     6000    0.533649      6000    0.031776      
     7014    -0.016000     7014    0.008665      7014    0.000516      
     8016    -0.070000     8016    0.033186      8016    0.001976      
     16000   -0.013000     16000   0.003075      16000   0.000183      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.056000     1000    0.421425      1000    0.025094      
     6000    -0.845000     6000    0.533649      6000    0.031776      
     7000    -0.016000     7000    0.008665      7000    0.000516      
     8000    -0.070000     8000    0.033186      8000    0.001976      
     16000   -0.013000     16000   0.003075      16000   0.000183      
********************************************************************************

********************************************************************************
  75  : Coal, Lignite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.750000 
  Total atom density (atoms/b-cm) = 5.264E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.042000      0.357505      0.018820      
  C         6000         6000         0.727000      0.519319      0.027339      
  N         7014         7000         0.012000      0.007350      0.000387      
  O         8016         8000         0.213000      0.114220      0.006013      
  S         16000        16000        0.006000      0.001605      0.000085      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.042000     1001    0.357505      1001    0.018820      
     6000    -0.727000     6000    0.519319      6000    0.027339      
     7014    -0.012000     7014    0.007350      7014    0.000387      
     8016    -0.213000     8016    0.114220      8016    0.006013      
     16000   -0.006000     16000   0.001605      16000   0.000085      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.042000     1000    0.357505      1000    0.018820      
     6000    -0.727000     6000    0.519319      6000    0.027339      
     7000    -0.012000     7000    0.007350      7000    0.000387      
     8000    -0.213000     8000    0.114220      8000    0.006013      
     16000   -0.006000     16000   0.001605      16000   0.000085      
********************************************************************************

********************************************************************************
  76  : Concrete, Barite (Type BA) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.350000 
  Total atom density (atoms/b-cm) = 6.547E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.003585      0.109602      0.007175      
  O         8016         8000         0.311622      0.600189      0.039293      
  Mg        12000        12000        0.001195      0.001515      0.000099      
  Al        13027        13000        0.004183      0.004777      0.000313      
  Si        14000        14000        0.010457      0.011473      0.000751      
  S         16000        16000        0.107858      0.103654      0.006786      
  Ca        20000        20000        0.050194      0.038593      0.002527      
  Fe        26000        26000        0.047505      0.026213      0.001716      
  Ba        -            56000        0.463400      0.103983      0.006808      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.003585     1001    0.109602      1001    0.007175      
     8016    -0.311622     8016    0.600189      8016    0.039293      
     12000   -0.001195     12000   0.001515      12000   0.000099      
     13027   -0.004183     13027   0.004777      13027   0.000313      
     14000   -0.010457     14000   0.011473      14000   0.000751      
     16000   -0.107858     16000   0.103654      16000   0.006786      
     20000   -0.050194     20000   0.038593      20000   0.002527      
     26000   -0.047505     26000   0.026213      26000   0.001716      
     -       -0.463400     -       0.103983      -       0.006808      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.003585     1000    0.109602      1000    0.007175      
     8000    -0.311622     8000    0.600189      8000    0.039293      
     12000   -0.001195     12000   0.001515      12000   0.000099      
     13000   -0.004183     13000   0.004777      13000   0.000313      
     14000   -0.010457     14000   0.011473      14000   0.000751      
     16000   -0.107858     16000   0.103654      16000   0.006786      
     20000   -0.050194     20000   0.038593      20000   0.002527      
     26000   -0.047505     26000   0.026213      26000   0.001716      
     56000   -0.463400     56000   0.103983      56000   0.006808      
********************************************************************************

********************************************************************************
  77  : Concrete, Barytes-Limonite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.360000 
  Total atom density (atoms/b-cm) = 8.732E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010240      0.235416      0.020557      
  O         8016         8000         0.378476      0.548162      0.047866      
  Na        11023        11000        0.000904      0.000911      0.000080      
  Mg        12000        12000        0.002309      0.002201      0.000192      
  Al        13027        13000        0.005020      0.004311      0.000376      
  Si        14000        14000        0.013553      0.011182      0.000976      
  S         16000        16000        0.076097      0.054993      0.004802      
  Ca        20000        20000        0.053910      0.031170      0.002722      
  Mn        25055        25000        0.001405      0.000593      0.000052      
  Fe        26000        26000        0.137135      0.056903      0.004969      
  Ba        -            56000        0.320952      0.054157      0.004729      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010240     1001    0.235416      1001    0.020557      
     8016    -0.378476     8016    0.548162      8016    0.047866      
     11023   -0.000904     11023   0.000911      11023   0.000080      
     12000   -0.002309     12000   0.002201      12000   0.000192      
     13027   -0.005020     13027   0.004311      13027   0.000376      
     14000   -0.013553     14000   0.011182      14000   0.000976      
     16000   -0.076097     16000   0.054993      16000   0.004802      
     20000   -0.053910     20000   0.031170      20000   0.002722      
     25055   -0.001405     25055   0.000593      25055   0.000052      
     26000   -0.137135     26000   0.056903      26000   0.004969      
     -       -0.320952     -       0.054157      -       0.004729      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010240     1000    0.235416      1000    0.020557      
     8000    -0.378476     8000    0.548162      8000    0.047866      
     11000   -0.000904     11000   0.000911      11000   0.000080      
     12000   -0.002309     12000   0.002201      12000   0.000192      
     13000   -0.005020     13000   0.004311      13000   0.000376      
     14000   -0.013553     14000   0.011182      14000   0.000976      
     16000   -0.076097     16000   0.054993      16000   0.004802      
     20000   -0.053910     20000   0.031170      20000   0.002722      
     25000   -0.001405     25000   0.000593      25000   0.000052      
     26000   -0.137135     26000   0.056903      26000   0.004969      
     56000   -0.320952     56000   0.054157      56000   0.004729      
********************************************************************************

********************************************************************************
  78  : Concrete, Boron Frits-baryte 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.100000 
  Total atom density (atoms/b-cm) = 7.064E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005626      0.147522      0.010421      
  B         -            5000         0.010449      0.025543      0.001804      
  O         8016         8000         0.339596      0.560939      0.039625      
  F         9019         9000         0.002311      0.003215      0.000227      
  Na        11023        11000        0.012157      0.013975      0.000987      
  Mg        12000        12000        0.002311      0.002513      0.000177      
  Al        13027        13000        0.006430      0.006298      0.000445      
  Si        14000        14000        0.033256      0.031293      0.002211      
  S         16000        16000        0.091932      0.075769      0.005352      
  K         19000        19000        0.001005      0.000679      0.000048      
  Ca        20000        20000        0.062896      0.041474      0.002930      
  Mn        25055        25000        0.000201      0.000097      0.000007      
  Fe        26000        26000        0.022003      0.010413      0.000736      
  Zn        30000        30000        0.006631      0.002679      0.000189      
  Ba        -            56000        0.403195      0.077592      0.005481      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005626     1001    0.147522      1001    0.010421      
     -       -0.010449     -       0.025543      -       0.001804      
     8016    -0.339596     8016    0.560939      8016    0.039625      
     9019    -0.002311     9019    0.003215      9019    0.000227      
     11023   -0.012157     11023   0.013975      11023   0.000987      
     12000   -0.002311     12000   0.002513      12000   0.000177      
     13027   -0.006430     13027   0.006298      13027   0.000445      
     14000   -0.033256     14000   0.031293      14000   0.002211      
     16000   -0.091932     16000   0.075769      16000   0.005352      
     19000   -0.001005     19000   0.000679      19000   0.000048      
     20000   -0.062896     20000   0.041474      20000   0.002930      
     25055   -0.000201     25055   0.000097      25055   0.000007      
     26000   -0.022003     26000   0.010413      26000   0.000736      
     30000   -0.006631     30000   0.002679      30000   0.000189      
     -       -0.403195     -       0.077592      -       0.005481      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005626     1000    0.147522      1000    0.010421      
     5000    -0.010449     5000    0.025543      5000    0.001804      
     8000    -0.339596     8000    0.560939      8000    0.039625      
     9000    -0.002311     9000    0.003215      9000    0.000227      
     11000   -0.012157     11000   0.013975      11000   0.000987      
     12000   -0.002311     12000   0.002513      12000   0.000177      
     13000   -0.006430     13000   0.006298      13000   0.000445      
     14000   -0.033256     14000   0.031293      14000   0.002211      
     16000   -0.091932     16000   0.075769      16000   0.005352      
     19000   -0.001005     19000   0.000679      19000   0.000048      
     20000   -0.062896     20000   0.041474      20000   0.002930      
     25000   -0.000201     25000   0.000097      25000   0.000007      
     26000   -0.022003     26000   0.010413      26000   0.000736      
     30000   -0.006631     30000   0.002679      30000   0.000189      
     56000   -0.403195     56000   0.077592      56000   0.005481      
********************************************************************************

********************************************************************************
  79  : Concrete, Colemanite-baryte 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.200000 
  Total atom density (atoms/b-cm) = 7.845E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.008564      0.208729      0.016374      
  B         -            5000         0.009874      0.022437      0.001760      
  O         8016         8000         0.351537      0.539754      0.042342      
  Na        11023        11000        0.001108      0.001184      0.000093      
  Mg        12000        12000        0.002217      0.002240      0.000176      
  Al        13027        13000        0.006146      0.005596      0.000439      
  Si        14000        14000        0.017733      0.015511      0.001217      
  S         16000        16000        0.097028      0.074335      0.005831      
  Ca        20000        20000        0.085239      0.052247      0.004099      
  Mn        25055        25000        0.000101      0.000045      0.000004      
  Fe        26000        26000        0.010378      0.004565      0.000358      
  Ba        -            56000        0.410076      0.073356      0.005755      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.008564     1001    0.208729      1001    0.016374      
     -       -0.009874     -       0.022437      -       0.001760      
     8016    -0.351537     8016    0.539754      8016    0.042342      
     11023   -0.001108     11023   0.001184      11023   0.000093      
     12000   -0.002217     12000   0.002240      12000   0.000176      
     13027   -0.006146     13027   0.005596      13027   0.000439      
     14000   -0.017733     14000   0.015511      14000   0.001217      
     16000   -0.097028     16000   0.074335      16000   0.005831      
     20000   -0.085239     20000   0.052247      20000   0.004099      
     25055   -0.000101     25055   0.000045      25055   0.000004      
     26000   -0.010378     26000   0.004565      26000   0.000358      
     -       -0.410076     -       0.073356      -       0.005755      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.008564     1000    0.208729      1000    0.016374      
     5000    -0.009874     5000    0.022437      5000    0.001760      
     8000    -0.351537     8000    0.539754      8000    0.042342      
     11000   -0.001108     11000   0.001184      11000   0.000093      
     12000   -0.002217     12000   0.002240      12000   0.000176      
     13000   -0.006146     13000   0.005596      13000   0.000439      
     14000   -0.017733     14000   0.015511      14000   0.001217      
     16000   -0.097028     16000   0.074335      16000   0.005831      
     20000   -0.085239     20000   0.052247      20000   0.004099      
     25000   -0.000101     25000   0.000045      25000   0.000004      
     26000   -0.010378     26000   0.004565      26000   0.000358      
     56000   -0.410076     56000   0.073356      56000   0.005755      
********************************************************************************

********************************************************************************
  80  : Concrete, Ferro-phosphorus 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.800000 
  Total atom density (atoms/b-cm) = 9.039E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005000      0.158643      0.014339      
  O         8016         8000         0.104000      0.207881      0.018790      
  Mg        12000        12000        0.002000      0.002632      0.000238      
  Al        13027        13000        0.004000      0.004741      0.000429      
  Si        14000        14000        0.034000      0.038715      0.003499      
  P         15031        15000        0.197000      0.203403      0.018385      
  Ca        20000        20000        0.042000      0.033514      0.003029      
  Fe        26000        26000        0.612000      0.350471      0.031678      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005000     1001    0.158643      1001    0.014339      
     8016    -0.104000     8016    0.207881      8016    0.018790      
     12000   -0.002000     12000   0.002632      12000   0.000238      
     13027   -0.004000     13027   0.004741      13027   0.000429      
     14000   -0.034000     14000   0.038715      14000   0.003499      
     15031   -0.197000     15031   0.203403      15031   0.018385      
     20000   -0.042000     20000   0.033514      20000   0.003029      
     26000   -0.612000     26000   0.350471      26000   0.031678      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005000     1000    0.158643      1000    0.014339      
     8000    -0.104000     8000    0.207881      8000    0.018790      
     12000   -0.002000     12000   0.002632      12000   0.000238      
     13000   -0.004000     13000   0.004741      13000   0.000429      
     14000   -0.034000     14000   0.038715      14000   0.003499      
     15000   -0.197000     15000   0.203403      15000   0.018385      
     20000   -0.042000     20000   0.033514      20000   0.003029      
     26000   -0.612000     26000   0.350471      26000   0.031678      
********************************************************************************

********************************************************************************
  81  : Concrete, Hanford Dry 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.180000 
  Total atom density (atoms/b-cm) = 6.642E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.004000      0.078440      0.005210      
  O         8016         8000         0.482102      0.595591      0.039559      
  Na        11023        11000        0.002168      0.001864      0.000124      
  Mg        12000        12000        0.014094      0.011462      0.000761      
  Al        13027        13000        0.069387      0.050831      0.003376      
  Si        14000        14000        0.277549      0.195330      0.012974      
  K         19000        19000        0.013010      0.006577      0.000437      
  Ca        20000        20000        0.080229      0.039567      0.002628      
  Fe        26000        26000        0.057461      0.020338      0.001351      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.004000     1001    0.078440      1001    0.005210      
     8016    -0.482102     8016    0.595591      8016    0.039559      
     11023   -0.002168     11023   0.001864      11023   0.000124      
     12000   -0.014094     12000   0.011462      12000   0.000761      
     13027   -0.069387     13027   0.050831      13027   0.003376      
     14000   -0.277549     14000   0.195330      14000   0.012974      
     19000   -0.013010     19000   0.006577      19000   0.000437      
     20000   -0.080229     20000   0.039567      20000   0.002628      
     26000   -0.057461     26000   0.020338      26000   0.001351      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.004000     1000    0.078440      1000    0.005210      
     8000    -0.482102     8000    0.595591      8000    0.039559      
     11000   -0.002168     11000   0.001864      11000   0.000124      
     12000   -0.014094     12000   0.011462      12000   0.000761      
     13000   -0.069387     13000   0.050831      13000   0.003376      
     14000   -0.277549     14000   0.195330      14000   0.012974      
     19000   -0.013010     19000   0.006577      19000   0.000437      
     20000   -0.080229     20000   0.039567      20000   0.002628      
     26000   -0.057461     26000   0.020338      26000   0.001351      
********************************************************************************

********************************************************************************
  82  : Concrete, Hanford Wet 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.350000 
  Total atom density (atoms/b-cm) = 8.423E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.012309      0.205170      0.017282      
  O         8016         8000         0.513359      0.539084      0.045408      
  Na        11023        11000        0.002001      0.001463      0.000123      
  Mg        12000        12000        0.013009      0.008993      0.000757      
  Al        13027        13000        0.064045      0.039880      0.003359      
  Si        14000        14000        0.256179      0.153250      0.012909      
  K         19000        19000        0.012008      0.005160      0.000435      
  Ca        20000        20000        0.074052      0.031043      0.002615      
  Fe        26000        26000        0.053037      0.015956      0.001344      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.012309     1001    0.205170      1001    0.017282      
     8016    -0.513359     8016    0.539084      8016    0.045408      
     11023   -0.002001     11023   0.001463      11023   0.000123      
     12000   -0.013009     12000   0.008993      12000   0.000757      
     13027   -0.064045     13027   0.039880      13027   0.003359      
     14000   -0.256179     14000   0.153250      14000   0.012909      
     19000   -0.012008     19000   0.005160      19000   0.000435      
     20000   -0.074052     20000   0.031043      20000   0.002615      
     26000   -0.053037     26000   0.015956      26000   0.001344      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.012309     1000    0.205170      1000    0.017282      
     8000    -0.513359     8000    0.539084      8000    0.045408      
     11000   -0.002001     11000   0.001463      11000   0.000123      
     12000   -0.013009     12000   0.008993      12000   0.000757      
     13000   -0.064045     13000   0.039880      13000   0.003359      
     14000   -0.256179     14000   0.153250      14000   0.012909      
     19000   -0.012008     19000   0.005160      19000   0.000435      
     20000   -0.074052     20000   0.031043      20000   0.002615      
     26000   -0.053037     26000   0.015956      26000   0.001344      
********************************************************************************

********************************************************************************
  83  : Concrete, Iron-limonite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.400000 
  Total atom density (atoms/b-cm) = 7.222E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.000500      0.018192      0.001314      
  O         8016         8000         0.179910      0.412591      0.029796      
  Mg        12000        12000        0.001999      0.003018      0.000218      
  Al        13027        13000        0.004998      0.006796      0.000491      
  Si        14000        14000        0.013993      0.018281      0.001320      
  S         16000        16000        0.001000      0.001144      0.000083      
  Ca        20000        20000        0.060970      0.055818      0.004031      
  Mn        25055        25000        0.015992      0.010681      0.000771      
  Fe        26000        26000        0.720640      0.473480      0.034193      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.000500     1001    0.018192      1001    0.001314      
     8016    -0.179910     8016    0.412591      8016    0.029796      
     12000   -0.001999     12000   0.003018      12000   0.000218      
     13027   -0.004998     13027   0.006796      13027   0.000491      
     14000   -0.013993     14000   0.018281      14000   0.001320      
     16000   -0.001000     16000   0.001144      16000   0.000083      
     20000   -0.060970     20000   0.055818      20000   0.004031      
     25055   -0.015992     25055   0.010681      25055   0.000771      
     26000   -0.720640     26000   0.473480      26000   0.034193      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.000500     1000    0.018192      1000    0.001314      
     8000    -0.179910     8000    0.412591      8000    0.029796      
     12000   -0.001999     12000   0.003018      12000   0.000218      
     13000   -0.004998     13000   0.006796      13000   0.000491      
     14000   -0.013993     14000   0.018281      14000   0.001320      
     16000   -0.001000     16000   0.001144      16000   0.000083      
     20000   -0.060970     20000   0.055818      20000   0.004031      
     25000   -0.015992     25000   0.010681      25000   0.000771      
     26000   -0.720640     26000   0.473480      26000   0.034193      
********************************************************************************

********************************************************************************
  84  : Concrete, Iron-Portland 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 5.900000 
  Total atom density (atoms/b-cm) = 8.633E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.003321      0.135585      0.011705      
  O         8016         8000         0.058563      0.150644      0.013005      
  Mg        12000        12000        0.001308      0.002215      0.000191      
  Al        13027        13000        0.003321      0.005065      0.000437      
  Si        14000        14000        0.009157      0.013418      0.001158      
  S         16000        16000        0.000503      0.000646      0.000056      
  Ca        20000        20000        0.039847      0.040919      0.003533      
  Mn        25055        25000        0.003522      0.002638      0.000228      
  Fe        26000        26000        0.880459      0.648869      0.056018      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.003321     1001    0.135585      1001    0.011705      
     8016    -0.058563     8016    0.150644      8016    0.013005      
     12000   -0.001308     12000   0.002215      12000   0.000191      
     13027   -0.003321     13027   0.005065      13027   0.000437      
     14000   -0.009157     14000   0.013418      14000   0.001158      
     16000   -0.000503     16000   0.000646      16000   0.000056      
     20000   -0.039847     20000   0.040919      20000   0.003533      
     25055   -0.003522     25055   0.002638      25055   0.000228      
     26000   -0.880459     26000   0.648869      26000   0.056018      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.003321     1000    0.135585      1000    0.011705      
     8000    -0.058563     8000    0.150644      8000    0.013005      
     12000   -0.001308     12000   0.002215      12000   0.000191      
     13000   -0.003321     13000   0.005065      13000   0.000437      
     14000   -0.009157     14000   0.013418      14000   0.001158      
     16000   -0.000503     16000   0.000646      16000   0.000056      
     20000   -0.039847     20000   0.040919      20000   0.003533      
     25000   -0.003522     25000   0.002638      25000   0.000228      
     26000   -0.880459     26000   0.648869      26000   0.056018      
********************************************************************************

********************************************************************************
  85  : Concrete, Limonite and steel 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.540000 
  Total atom density (atoms/b-cm) = 8.851E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.006840      0.209640      0.018554      
  O         8016         8000         0.156222      0.301631      0.026696      
  Mg        12000        12000        0.001545      0.001963      0.000174      
  Al        13027        13000        0.006399      0.007326      0.000648      
  Si        14000        14000        0.014784      0.016261      0.001439      
  K         19000        19000        0.000883      0.000697      0.000062      
  Ca        20000        20000        0.057590      0.044390      0.003929      
  V         23000        23000        0.000883      0.000535      0.000047      
  Fe        26000        26000        0.754854      0.417557      0.036956      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.006840     1001    0.209640      1001    0.018554      
     8016    -0.156222     8016    0.301631      8016    0.026696      
     12000   -0.001545     12000   0.001963      12000   0.000174      
     13027   -0.006399     13027   0.007326      13027   0.000648      
     14000   -0.014784     14000   0.016261      14000   0.001439      
     19000   -0.000883     19000   0.000697      19000   0.000062      
     20000   -0.057590     20000   0.044390      20000   0.003929      
     23000   -0.000883     23000   0.000535      23000   0.000047      
     26000   -0.754854     26000   0.417557      26000   0.036956      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.006840     1000    0.209640      1000    0.018554      
     8000    -0.156222     8000    0.301631      8000    0.026696      
     12000   -0.001545     12000   0.001963      12000   0.000174      
     13000   -0.006399     13000   0.007326      13000   0.000648      
     14000   -0.014784     14000   0.016261      14000   0.001439      
     19000   -0.000883     19000   0.000697      19000   0.000062      
     20000   -0.057590     20000   0.044390      20000   0.003929      
     23000   -0.000883     23000   0.000535      23000   0.000047      
     26000   -0.754854     26000   0.417557      26000   0.036956      
********************************************************************************

********************************************************************************
  86  : Concrete, Los Alamos (MCNP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.250000 
  Total atom density (atoms/b-cm) = 7.186E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.004530      0.084739      0.006090      
  O         8016         8000         0.512600      0.604079      0.043412      
  Na        11023        11000        0.015270      0.012523      0.000900      
  Al        13027        13000        0.035550      0.024842      0.001785      
  Si        14000        14000        0.360360      0.241921      0.017386      
  Ca        20000        20000        0.057910      0.027244      0.001958      
  Fe        26000        26000        0.013780      0.004652      0.000334      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.004530     1001    0.084739      1001    0.006090      
     8016    -0.512600     8016    0.604079      8016    0.043412      
     11023   -0.015270     11023   0.012523      11023   0.000900      
     13027   -0.035550     13027   0.024842      13027   0.001785      
     14000   -0.360360     14000   0.241921      14000   0.017386      
     20000   -0.057910     20000   0.027244      20000   0.001958      
     26000   -0.013780     26000   0.004652      26000   0.000334      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.004530     1000    0.084739      1000    0.006090      
     8000    -0.512600     8000    0.604079      8000    0.043412      
     11000   -0.015270     11000   0.012523      11000   0.000900      
     13000   -0.035550     13000   0.024842      13000   0.001785      
     14000   -0.360360     14000   0.241921      14000   0.017386      
     20000   -0.057910     20000   0.027244      20000   0.001958      
     26000   -0.013780     26000   0.004652      26000   0.000334      
********************************************************************************

********************************************************************************
  87  : Concrete, Luminite-colemanite-baryte 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.100000 
  Total atom density (atoms/b-cm) = 8.194E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010957      0.247678      0.020294      
  B         -            5000         0.008846      0.018643      0.001528      
  O         8016         8000         0.371431      0.528939      0.043340      
  Na        11023        11000        0.001106      0.001096      0.000090      
  Mg        12000        12000        0.001407      0.001319      0.000108      
  Al        13027        13000        0.017692      0.014940      0.001224      
  Si        14000        14000        0.009650      0.007829      0.000641      
  S         16000        16000        0.091074      0.064713      0.005302      
  Ca        20000        20000        0.055086      0.031316      0.002566      
  Ti        22000        22000        0.012766      0.006077      0.000498      
  Mn        25055        25000        0.001206      0.000500      0.000041      
  Fe        26000        26000        0.030860      0.012591      0.001032      
  Ba        -            56000        0.387917      0.064360      0.005273      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010957     1001    0.247678      1001    0.020294      
     -       -0.008846     -       0.018643      -       0.001528      
     8016    -0.371431     8016    0.528939      8016    0.043340      
     11023   -0.001106     11023   0.001096      11023   0.000090      
     12000   -0.001407     12000   0.001319      12000   0.000108      
     13027   -0.017692     13027   0.014940      13027   0.001224      
     14000   -0.009650     14000   0.007829      14000   0.000641      
     16000   -0.091074     16000   0.064713      16000   0.005302      
     20000   -0.055086     20000   0.031316      20000   0.002566      
     22000   -0.012766     22000   0.006077      22000   0.000498      
     25055   -0.001206     25055   0.000500      25055   0.000041      
     26000   -0.030860     26000   0.012591      26000   0.001032      
     -       -0.387917     -       0.064360      -       0.005273      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010957     1000    0.247678      1000    0.020294      
     5000    -0.008846     5000    0.018643      5000    0.001528      
     8000    -0.371431     8000    0.528939      8000    0.043340      
     11000   -0.001106     11000   0.001096      11000   0.000090      
     12000   -0.001407     12000   0.001319      12000   0.000108      
     13000   -0.017692     13000   0.014940      13000   0.001224      
     14000   -0.009650     14000   0.007829      14000   0.000641      
     16000   -0.091074     16000   0.064713      16000   0.005302      
     20000   -0.055086     20000   0.031316      20000   0.002566      
     22000   -0.012766     22000   0.006077      22000   0.000498      
     25000   -0.001206     25000   0.000500      25000   0.000041      
     26000   -0.030860     26000   0.012591      26000   0.001032      
     56000   -0.387917     56000   0.064360      56000   0.005273      
********************************************************************************

********************************************************************************
  88  : Concrete, Luminite-Portland-colemanite-baryte 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.100000 
  Total atom density (atoms/b-cm) = 8.300E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.011126      0.248270      0.020606      
  B         -            5000         0.010316      0.021464      0.001781      
  O         8016         8000         0.374023      0.525811      0.043642      
  Na        11023        11000        0.001113      0.001088      0.000090      
  Mg        12000        12000        0.002023      0.001872      0.000155      
  Al        13027        13000        0.013351      0.011129      0.000924      
  Si        14000        14000        0.015070      0.012069      0.001002      
  S         16000        16000        0.090724      0.063640      0.005282      
  Ca        20000        20000        0.077576      0.043537      0.003614      
  Ti        22000        22000        0.000718      0.000337      0.000028      
  Mn        25055        25000        0.000405      0.000166      0.000014      
  Fe        26000        26000        0.018914      0.007618      0.000632      
  Ba        -            56000        0.384643      0.062999      0.005229      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.011126     1001    0.248270      1001    0.020606      
     -       -0.010316     -       0.021464      -       0.001781      
     8016    -0.374023     8016    0.525811      8016    0.043642      
     11023   -0.001113     11023   0.001088      11023   0.000090      
     12000   -0.002023     12000   0.001872      12000   0.000155      
     13027   -0.013351     13027   0.011129      13027   0.000924      
     14000   -0.015070     14000   0.012069      14000   0.001002      
     16000   -0.090724     16000   0.063640      16000   0.005282      
     20000   -0.077576     20000   0.043537      20000   0.003614      
     22000   -0.000718     22000   0.000337      22000   0.000028      
     25055   -0.000405     25055   0.000166      25055   0.000014      
     26000   -0.018914     26000   0.007618      26000   0.000632      
     -       -0.384643     -       0.062999      -       0.005229      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.011126     1000    0.248270      1000    0.020606      
     5000    -0.010316     5000    0.021464      5000    0.001781      
     8000    -0.374023     8000    0.525811      8000    0.043642      
     11000   -0.001113     11000   0.001088      11000   0.000090      
     12000   -0.002023     12000   0.001872      12000   0.000155      
     13000   -0.013351     13000   0.011129      13000   0.000924      
     14000   -0.015070     14000   0.012069      14000   0.001002      
     16000   -0.090724     16000   0.063640      16000   0.005282      
     20000   -0.077576     20000   0.043537      20000   0.003614      
     22000   -0.000718     22000   0.000337      22000   0.000028      
     25000   -0.000405     25000   0.000166      25000   0.000014      
     26000   -0.018914     26000   0.007618      26000   0.000632      
     56000   -0.384643     56000   0.062999      56000   0.005229      
********************************************************************************

********************************************************************************
  89  : Concrete, M-1 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.500000 
  Total atom density (atoms/b-cm) = 8.790E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.008000      0.244686      0.021509      
  B         -            5000         0.009000      0.025664      0.002256      
  O         8016         8000         0.107000      0.206174      0.018124      
  Mg        12000        12000        0.043000      0.054542      0.004794      
  Cl        17000        17000        0.021000      0.018261      0.001605      
  Mn        25055        25000        0.003000      0.001683      0.000148      
  Ca        20000        20000        0.011000      0.008461      0.000744      
  Fe        26000        26000        0.798000      0.440528      0.038724      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.008000     1001    0.244686      1001    0.021509      
     -       -0.009000     -       0.025664      -       0.002256      
     8016    -0.107000     8016    0.206174      8016    0.018124      
     12000   -0.043000     12000   0.054542      12000   0.004794      
     17000   -0.021000     17000   0.018261      17000   0.001605      
     25055   -0.003000     25055   0.001683      25055   0.000148      
     20000   -0.011000     20000   0.008461      20000   0.000744      
     26000   -0.798000     26000   0.440528      26000   0.038724      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.008000     1000    0.244686      1000    0.021509      
     5000    -0.009000     5000    0.025664      5000    0.002256      
     8000    -0.107000     8000    0.206174      8000    0.018124      
     12000   -0.043000     12000   0.054542      12000   0.004794      
     17000   -0.021000     17000   0.018261      17000   0.001605      
     25000   -0.003000     25000   0.001683      25000   0.000148      
     20000   -0.011000     20000   0.008461      20000   0.000744      
     26000   -0.798000     26000   0.440528      26000   0.038724      
********************************************************************************

********************************************************************************
  90  : Concrete, Magnetite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.530000 
  Total atom density (atoms/b-cm) = 7.970E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.003113      0.082371      0.006565      
  O         8016         8000         0.330504      0.551004      0.043914      
  Mg        12000        12000        0.009338      0.010248      0.000817      
  Al        13027        13000        0.023486      0.023218      0.001850      
  Si        14000        14000        0.025750      0.024455      0.001949      
  S         16000        16000        0.001415      0.001177      0.000094      
  Ca        20000        20000        0.071024      0.047270      0.003767      
  Ti        22000        22000        0.054329      0.030275      0.002413      
  V         23000        23000        0.003113      0.001630      0.000130      
  Cr        24000        24000        0.001698      0.000871      0.000069      
  Mn        25055        25000        0.001981      0.000962      0.000077      
  Fe        26000        26000        0.474250      0.226519      0.018053      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.003113     1001    0.082371      1001    0.006565      
     8016    -0.330504     8016    0.551004      8016    0.043914      
     12000   -0.009338     12000   0.010248      12000   0.000817      
     13027   -0.023486     13027   0.023218      13027   0.001850      
     14000   -0.025750     14000   0.024455      14000   0.001949      
     16000   -0.001415     16000   0.001177      16000   0.000094      
     20000   -0.071024     20000   0.047270      20000   0.003767      
     22000   -0.054329     22000   0.030275      22000   0.002413      
     23000   -0.003113     23000   0.001630      23000   0.000130      
     24000   -0.001698     24000   0.000871      24000   0.000069      
     25055   -0.001981     25055   0.000962      25055   0.000077      
     26000   -0.474250     26000   0.226519      26000   0.018053      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.003113     1000    0.082371      1000    0.006565      
     8000    -0.330504     8000    0.551004      8000    0.043914      
     12000   -0.009338     12000   0.010248      12000   0.000817      
     13000   -0.023486     13000   0.023218      13000   0.001850      
     14000   -0.025750     14000   0.024455      14000   0.001949      
     16000   -0.001415     16000   0.001177      16000   0.000094      
     20000   -0.071024     20000   0.047270      20000   0.003767      
     22000   -0.054329     22000   0.030275      22000   0.002413      
     23000   -0.003113     23000   0.001630      23000   0.000130      
     24000   -0.001698     24000   0.000871      24000   0.000069      
     25000   -0.001981     25000   0.000962      25000   0.000077      
     26000   -0.474250     26000   0.226519      26000   0.018053      
********************************************************************************

********************************************************************************
  91  : Concrete, Magnetite and steel 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.640000 
  Total atom density (atoms/b-cm) = 7.646E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.002374      0.086069      0.006581      
  O         8016         8000         0.137678      0.314488      0.024045      
  Mg        12000        12000        0.003669      0.005516      0.000422      
  Al        13027        13000        0.010358      0.014030      0.001073      
  Si        14000        14000        0.015753      0.020499      0.001567      
  Ca        20000        20000        0.055675      0.050769      0.003882      
  Ti        22000        22000        0.015969      0.012192      0.000932      
  V         23000        23000        0.000647      0.000464      0.000036      
  Fe        26000        26000        0.757877      0.495972      0.037921      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.002374     1001    0.086069      1001    0.006581      
     8016    -0.137678     8016    0.314488      8016    0.024045      
     12000   -0.003669     12000   0.005516      12000   0.000422      
     13027   -0.010358     13027   0.014030      13027   0.001073      
     14000   -0.015753     14000   0.020499      14000   0.001567      
     20000   -0.055675     20000   0.050769      20000   0.003882      
     22000   -0.015969     22000   0.012192      22000   0.000932      
     23000   -0.000647     23000   0.000464      23000   0.000036      
     26000   -0.757877     26000   0.495972      26000   0.037921      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.002374     1000    0.086069      1000    0.006581      
     8000    -0.137678     8000    0.314488      8000    0.024045      
     12000   -0.003669     12000   0.005516      12000   0.000422      
     13000   -0.010358     13000   0.014030      13000   0.001073      
     14000   -0.015753     14000   0.020499      14000   0.001567      
     20000   -0.055675     20000   0.050769      20000   0.003882      
     22000   -0.015969     22000   0.012192      22000   0.000932      
     23000   -0.000647     23000   0.000464      23000   0.000036      
     26000   -0.757877     26000   0.495972      26000   0.037921      
********************************************************************************

********************************************************************************
  92  : Concrete, Magnuson 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.147000 
  Total atom density (atoms/b-cm) = 7.128E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.003319      0.059733      0.004257      
  C         6000         6000         0.105320      0.159071      0.011338      
  O         8016         8000         0.499428      0.566258      0.040360      
  Na        11023        11000        0.001411      0.001113      0.000079      
  Mg        12000        12000        0.094200      0.070307      0.005011      
  Al        13027        13000        0.007859      0.005284      0.000377      
  Si        14000        14000        0.042101      0.027193      0.001938      
  S         16000        16000        0.002483      0.001405      0.000100      
  Cl        17000        17000        0.000523      0.000268      0.000019      
  K         19000        19000        0.009445      0.004382      0.000312      
  Ca        20000        20000        0.226317      0.102437      0.007301      
  Ti        22000        22000        0.001488      0.000564      0.000040      
  Mn        25055        25000        0.000512      0.000169      0.000012      
  Fe        26000        26000        0.005595      0.001817      0.000130      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.003319     1001    0.059733      1001    0.004257      
     6000    -0.105320     6000    0.159071      6000    0.011338      
     8016    -0.499428     8016    0.566258      8016    0.040360      
     11023   -0.001411     11023   0.001113      11023   0.000079      
     12000   -0.094200     12000   0.070307      12000   0.005011      
     13027   -0.007859     13027   0.005284      13027   0.000377      
     14000   -0.042101     14000   0.027193      14000   0.001938      
     16000   -0.002483     16000   0.001405      16000   0.000100      
     17000   -0.000523     17000   0.000268      17000   0.000019      
     19000   -0.009445     19000   0.004382      19000   0.000312      
     20000   -0.226317     20000   0.102437      20000   0.007301      
     22000   -0.001488     22000   0.000564      22000   0.000040      
     25055   -0.000512     25055   0.000169      25055   0.000012      
     26000   -0.005595     26000   0.001817      26000   0.000130      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.003319     1000    0.059733      1000    0.004257      
     6000    -0.105320     6000    0.159071      6000    0.011338      
     8000    -0.499428     8000    0.566258      8000    0.040360      
     11000   -0.001411     11000   0.001113      11000   0.000079      
     12000   -0.094200     12000   0.070307      12000   0.005011      
     13000   -0.007859     13000   0.005284      13000   0.000377      
     14000   -0.042101     14000   0.027193      14000   0.001938      
     16000   -0.002483     16000   0.001405      16000   0.000100      
     17000   -0.000523     17000   0.000268      17000   0.000019      
     19000   -0.009445     19000   0.004382      19000   0.000312      
     20000   -0.226317     20000   0.102437      20000   0.007301      
     22000   -0.001488     22000   0.000564      22000   0.000040      
     25000   -0.000512     25000   0.000169      25000   0.000012      
     26000   -0.005595     26000   0.001817      26000   0.000130      
********************************************************************************

********************************************************************************
  93  : Concrete, MO 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 5.500000 
  Total atom density (atoms/b-cm) = 8.760E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005000      0.187558      0.016430      
  O         8016         8000         0.060000      0.141791      0.012421      
  Mg        12000        12000        0.037000      0.057558      0.005042      
  Mn        25055        25000        0.004000      0.002753      0.000241      
  Cl        17000        17000        0.013000      0.013864      0.001215      
  Fe        26000        26000        0.881000      0.596476      0.052252      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005000     1001    0.187558      1001    0.016430      
     8016    -0.060000     8016    0.141791      8016    0.012421      
     12000   -0.037000     12000   0.057558      12000   0.005042      
     25055   -0.004000     25055   0.002753      25055   0.000241      
     17000   -0.013000     17000   0.013864      17000   0.001215      
     26000   -0.881000     26000   0.596476      26000   0.052252      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005000     1000    0.187558      1000    0.016430      
     8000    -0.060000     8000    0.141791      8000    0.012421      
     12000   -0.037000     12000   0.057558      12000   0.005042      
     25000   -0.004000     25000   0.002753      25000   0.000241      
     17000   -0.013000     17000   0.013864      17000   0.001215      
     26000   -0.881000     26000   0.596476      26000   0.052252      
********************************************************************************

********************************************************************************
  94  : Concrete, Oak Ridge (ORNL) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.300000 
  Total atom density (atoms/b-cm) = 7.969E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.006187      0.106691      0.008502      
  C         6000         6000         0.175193      0.253540      0.020204      
  O         8016         8000         0.410184      0.445629      0.035510      
  Na        11023        11000        0.000271      0.000205      0.000016      
  Mg        12000        12000        0.032649      0.023349      0.001861      
  Al        13027        13000        0.010830      0.006977      0.000556      
  Si        14000        14000        0.034479      0.021339      0.001700      
  K         19000        19000        0.001138      0.000506      0.000040      
  Ca        20000        20000        0.321287      0.139343      0.011104      
  Fe        26000        26000        0.007784      0.002423      0.000193      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.006187     1001    0.106691      1001    0.008502      
     6000    -0.175193     6000    0.253540      6000    0.020204      
     8016    -0.410184     8016    0.445629      8016    0.035510      
     11023   -0.000271     11023   0.000205      11023   0.000016      
     12000   -0.032649     12000   0.023349      12000   0.001861      
     13027   -0.010830     13027   0.006977      13027   0.000556      
     14000   -0.034479     14000   0.021339      14000   0.001700      
     19000   -0.001138     19000   0.000506      19000   0.000040      
     20000   -0.321287     20000   0.139343      20000   0.011104      
     26000   -0.007784     26000   0.002423      26000   0.000193      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.006187     1000    0.106691      1000    0.008502      
     6000    -0.175193     6000    0.253540      6000    0.020204      
     8000    -0.410184     8000    0.445629      8000    0.035510      
     11000   -0.000271     11000   0.000205      11000   0.000016      
     12000   -0.032649     12000   0.023349      12000   0.001861      
     13000   -0.010830     13000   0.006977      13000   0.000556      
     14000   -0.034479     14000   0.021339      14000   0.001700      
     19000   -0.001138     19000   0.000506      19000   0.000040      
     20000   -0.321287     20000   0.139343      20000   0.011104      
     26000   -0.007784     26000   0.002423      26000   0.000193      
********************************************************************************

********************************************************************************
  95  : Concrete, Ordinary (NBS 03) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.350000 
  Total atom density (atoms/b-cm) = 7.950E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.008485      0.149867      0.011914      
  C         6000         6000         0.050064      0.074204      0.005899      
  O         8016         8000         0.473483      0.526832      0.041881      
  Mg        12000        12000        0.024183      0.017713      0.001408      
  Al        13027        13000        0.036063      0.023794      0.001892      
  Si        14000        14000        0.145100      0.091972      0.007311      
  S         16000        16000        0.002970      0.001649      0.000131      
  K         19000        19000        0.001697      0.000773      0.000061      
  Ca        20000        20000        0.246924      0.109680      0.008719      
  Fe        26000        26000        0.011031      0.003516      0.000280      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.008485     1001    0.149867      1001    0.011914      
     6000    -0.050064     6000    0.074204      6000    0.005899      
     8016    -0.473483     8016    0.526832      8016    0.041881      
     12000   -0.024183     12000   0.017713      12000   0.001408      
     13027   -0.036063     13027   0.023794      13027   0.001892      
     14000   -0.145100     14000   0.091972      14000   0.007311      
     16000   -0.002970     16000   0.001649      16000   0.000131      
     19000   -0.001697     19000   0.000773      19000   0.000061      
     20000   -0.246924     20000   0.109680      20000   0.008719      
     26000   -0.011031     26000   0.003516      26000   0.000280      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.008485     1000    0.149867      1000    0.011914      
     6000    -0.050064     6000    0.074204      6000    0.005899      
     8000    -0.473483     8000    0.526832      8000    0.041881      
     12000   -0.024183     12000   0.017713      12000   0.001408      
     13000   -0.036063     13000   0.023794      13000   0.001892      
     14000   -0.145100     14000   0.091972      14000   0.007311      
     16000   -0.002970     16000   0.001649      16000   0.000131      
     19000   -0.001697     19000   0.000773      19000   0.000061      
     20000   -0.246924     20000   0.109680      20000   0.008719      
     26000   -0.011031     26000   0.003516      26000   0.000280      
********************************************************************************

********************************************************************************
  96  : Concrete, Ordinary (NBS 04) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.350000 
  Total atom density (atoms/b-cm) = 7.533E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005558      0.103586      0.007804      
  O         8016         8000         0.498076      0.584810      0.044057      
  Na        11023        11000        0.017101      0.013974      0.001053      
  Mg        12000        12000        0.002565      0.001983      0.000149      
  Al        13027        13000        0.045746      0.031850      0.002399      
  Si        14000        14000        0.315092      0.210755      0.015877      
  S         16000        16000        0.001283      0.000751      0.000057      
  K         19000        19000        0.019239      0.009244      0.000696      
  Ca        20000        20000        0.082941      0.038877      0.002929      
  Fe        26000        26000        0.012398      0.004171      0.000314      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005558     1001    0.103586      1001    0.007804      
     8016    -0.498076     8016    0.584810      8016    0.044057      
     11023   -0.017101     11023   0.013974      11023   0.001053      
     12000   -0.002565     12000   0.001983      12000   0.000149      
     13027   -0.045746     13027   0.031850      13027   0.002399      
     14000   -0.315092     14000   0.210755      14000   0.015877      
     16000   -0.001283     16000   0.000751      16000   0.000057      
     19000   -0.019239     19000   0.009244      19000   0.000696      
     20000   -0.082941     20000   0.038877      20000   0.002929      
     26000   -0.012398     26000   0.004171      26000   0.000314      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005558     1000    0.103586      1000    0.007804      
     8000    -0.498076     8000    0.584810      8000    0.044057      
     11000   -0.017101     11000   0.013974      11000   0.001053      
     12000   -0.002565     12000   0.001983      12000   0.000149      
     13000   -0.045746     13000   0.031850      13000   0.002399      
     14000   -0.315092     14000   0.210755      14000   0.015877      
     16000   -0.001283     16000   0.000751      16000   0.000057      
     19000   -0.019239     19000   0.009244      19000   0.000696      
     20000   -0.082941     20000   0.038877      20000   0.002929      
     26000   -0.012398     26000   0.004171      26000   0.000314      
********************************************************************************

********************************************************************************
  97  : Concrete, Ordinary (NIST) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.300000 
  Total atom density (atoms/b-cm) = 9.946E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.022100      0.305330      0.030369      
  C         6000         6000         0.002484      0.002880      0.000286      
  O         8016         8000         0.574930      0.500407      0.049773      
  Na        11023        11000        0.015208      0.009212      0.000916      
  Mg        12000        12000        0.001266      0.000725      0.000072      
  Al        13027        13000        0.019953      0.010298      0.001024      
  Si        14000        14000        0.304627      0.151042      0.015023      
  K         19000        19000        0.010045      0.003578      0.000356      
  Ca        20000        20000        0.042951      0.014924      0.001484      
  Fe        26000        26000        0.006435      0.001605      0.000160      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.022100     1001    0.305330      1001    0.030369      
     6000    -0.002484     6000    0.002880      6000    0.000286      
     8016    -0.574930     8016    0.500407      8016    0.049773      
     11023   -0.015208     11023   0.009212      11023   0.000916      
     12000   -0.001266     12000   0.000725      12000   0.000072      
     13027   -0.019953     13027   0.010298      13027   0.001024      
     14000   -0.304627     14000   0.151042      14000   0.015023      
     19000   -0.010045     19000   0.003578      19000   0.000356      
     20000   -0.042951     20000   0.014924      20000   0.001484      
     26000   -0.006435     26000   0.001605      26000   0.000160      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.022100     1000    0.305330      1000    0.030369      
     6000    -0.002484     6000    0.002880      6000    0.000286      
     8000    -0.574930     8000    0.500407      8000    0.049773      
     11000   -0.015208     11000   0.009212      11000   0.000916      
     12000   -0.001266     12000   0.000725      12000   0.000072      
     13000   -0.019953     13000   0.010298      13000   0.001024      
     14000   -0.304627     14000   0.151042      14000   0.015023      
     19000   -0.010045     19000   0.003578      19000   0.000356      
     20000   -0.042951     20000   0.014924      20000   0.001484      
     26000   -0.006435     26000   0.001605      26000   0.000160      
********************************************************************************

********************************************************************************
  98  : Concrete, Portland 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.300000 
  Total atom density (atoms/b-cm) = 8.143E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010000      0.168759      0.013742      
  C         6000         6000         0.001000      0.001416      0.000115      
  O         8016         8000         0.529107      0.562524      0.045806      
  Na        11023        11000        0.016000      0.011838      0.000964      
  Mg        12000        12000        0.002000      0.001400      0.000114      
  Al        13027        13000        0.033872      0.021354      0.001739      
  Si        14000        14000        0.337021      0.204115      0.016621      
  K         19000        19000        0.013000      0.005656      0.000461      
  Ca        20000        20000        0.044000      0.018674      0.001521      
  Fe        26000        26000        0.014000      0.004264      0.000347      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010000     1001    0.168759      1001    0.013742      
     6000    -0.001000     6000    0.001416      6000    0.000115      
     8016    -0.529107     8016    0.562524      8016    0.045806      
     11023   -0.016000     11023   0.011838      11023   0.000964      
     12000   -0.002000     12000   0.001400      12000   0.000114      
     13027   -0.033872     13027   0.021354      13027   0.001739      
     14000   -0.337021     14000   0.204115      14000   0.016621      
     19000   -0.013000     19000   0.005656      19000   0.000461      
     20000   -0.044000     20000   0.018674      20000   0.001521      
     26000   -0.014000     26000   0.004264      26000   0.000347      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010000     1000    0.168759      1000    0.013742      
     6000    -0.001000     6000    0.001416      6000    0.000115      
     8000    -0.529107     8000    0.562524      8000    0.045806      
     11000   -0.016000     11000   0.011838      11000   0.000964      
     12000   -0.002000     12000   0.001400      12000   0.000114      
     13000   -0.033872     13000   0.021354      13000   0.001739      
     14000   -0.337021     14000   0.204115      14000   0.016621      
     19000   -0.013000     19000   0.005656      19000   0.000461      
     20000   -0.044000     20000   0.018674      20000   0.001521      
     26000   -0.014000     26000   0.004264      26000   0.000347      
********************************************************************************

********************************************************************************
  99  : Concrete, Regular 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.300000 
  Total atom density (atoms/b-cm) = 8.178E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010000      0.168038      0.013742      
  O         8016         8000         0.532000      0.563183      0.046056      
  Na        11023        11000        0.029000      0.021365      0.001747      
  Al        13027        13000        0.034000      0.021343      0.001745      
  Si        14000        14000        0.337000      0.203231      0.016620      
  Ca        20000        20000        0.044000      0.018595      0.001521      
  Fe        26000        26000        0.014000      0.004246      0.000347      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010000     1001    0.168038      1001    0.013742      
     8016    -0.532000     8016    0.563183      8016    0.046056      
     11023   -0.029000     11023   0.021365      11023   0.001747      
     13027   -0.034000     13027   0.021343      13027   0.001745      
     14000   -0.337000     14000   0.203231      14000   0.016620      
     20000   -0.044000     20000   0.018595      20000   0.001521      
     26000   -0.014000     26000   0.004246      26000   0.000347      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010000     1000    0.168038      1000    0.013742      
     8000    -0.532000     8000    0.563183      8000    0.046056      
     11000   -0.029000     11000   0.021365      11000   0.001747      
     13000   -0.034000     13000   0.021343      13000   0.001745      
     14000   -0.337000     14000   0.203231      14000   0.016620      
     20000   -0.044000     20000   0.018595      20000   0.001521      
     26000   -0.014000     26000   0.004246      26000   0.000347      
********************************************************************************

********************************************************************************
  100 : Concrete, Rocky Flats 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 7.799E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.007500      0.133302      0.010396      
  C         6000         6000         0.055200      0.082334      0.006421      
  N         7014         7000         0.000200      0.000256      0.000020      
  O         8016         8000         0.484900      0.542947      0.042344      
  Na        11023        11000        0.006300      0.004909      0.000383      
  Mg        12000        12000        0.012500      0.009213      0.000719      
  Al        13027        13000        0.021700      0.014408      0.001124      
  Si        14000        14000        0.155000      0.098869      0.007711      
  S         16000        16000        0.001900      0.001062      0.000083      
  K         19000        19000        0.013700      0.006277      0.000490      
  Ca        20000        20000        0.230000      0.102809      0.008018      
  Ti        22000        22000        0.001000      0.000374      0.000029      
  Fe        26000        26000        0.010100      0.003240      0.000253      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.007500     1001    0.133302      1001    0.010396      
     6000    -0.055200     6000    0.082334      6000    0.006421      
     7014    -0.000200     7014    0.000256      7014    0.000020      
     8016    -0.484900     8016    0.542947      8016    0.042344      
     11023   -0.006300     11023   0.004909      11023   0.000383      
     12000   -0.012500     12000   0.009213      12000   0.000719      
     13027   -0.021700     13027   0.014408      13027   0.001124      
     14000   -0.155000     14000   0.098869      14000   0.007711      
     16000   -0.001900     16000   0.001062      16000   0.000083      
     19000   -0.013700     19000   0.006277      19000   0.000490      
     20000   -0.230000     20000   0.102809      20000   0.008018      
     22000   -0.001000     22000   0.000374      22000   0.000029      
     26000   -0.010100     26000   0.003240      26000   0.000253      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.007500     1000    0.133302      1000    0.010396      
     6000    -0.055200     6000    0.082334      6000    0.006421      
     7000    -0.000200     7000    0.000256      7000    0.000020      
     8000    -0.484900     8000    0.542947      8000    0.042344      
     11000   -0.006300     11000   0.004909      11000   0.000383      
     12000   -0.012500     12000   0.009213      12000   0.000719      
     13000   -0.021700     13000   0.014408      13000   0.001124      
     14000   -0.155000     14000   0.098869      14000   0.007711      
     16000   -0.001900     16000   0.001062      16000   0.000083      
     19000   -0.013700     19000   0.006277      19000   0.000490      
     20000   -0.230000     20000   0.102809      20000   0.008018      
     22000   -0.001000     22000   0.000374      22000   0.000029      
     26000   -0.010100     26000   0.003240      26000   0.000253      
********************************************************************************

********************************************************************************
  101 : Concrete, Serpentine 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.100000 
  Total atom density (atoms/b-cm) = 8.108E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.015909      0.246195      0.019961      
  C         6000         6000         0.000909      0.001181      0.000096      
  O         8016         8000         0.511818      0.498977      0.040456      
  Na        11023        11000        0.004091      0.002776      0.000225      
  Mg        12000        12000        0.135000      0.086638      0.007024      
  Al        13027        13000        0.019091      0.011036      0.000895      
  Si        14000        14000        0.209091      0.116124      0.009415      
  K         19000        19000        0.004091      0.001632      0.000132      
  Ca        20000        20000        0.068182      0.026536      0.002151      
  Cr        24000        24000        0.000909      0.000273      0.000022      
  Fe        26000        26000        0.030909      0.008633      0.000700      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.015909     1001    0.246195      1001    0.019961      
     6000    -0.000909     6000    0.001181      6000    0.000096      
     8016    -0.511818     8016    0.498977      8016    0.040456      
     11023   -0.004091     11023   0.002776      11023   0.000225      
     12000   -0.135000     12000   0.086638      12000   0.007024      
     13027   -0.019091     13027   0.011036      13027   0.000895      
     14000   -0.209091     14000   0.116124      14000   0.009415      
     19000   -0.004091     19000   0.001632      19000   0.000132      
     20000   -0.068182     20000   0.026536      20000   0.002151      
     24000   -0.000909     24000   0.000273      24000   0.000022      
     26000   -0.030909     26000   0.008633      26000   0.000700      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.015909     1000    0.246195      1000    0.019961      
     6000    -0.000909     6000    0.001181      6000    0.000096      
     8000    -0.511818     8000    0.498977      8000    0.040456      
     11000   -0.004091     11000   0.002776      11000   0.000225      
     12000   -0.135000     12000   0.086638      12000   0.007024      
     13000   -0.019091     13000   0.011036      13000   0.000895      
     14000   -0.209091     14000   0.116124      14000   0.009415      
     19000   -0.004091     19000   0.001632      19000   0.000132      
     20000   -0.068182     20000   0.026536      20000   0.002151      
     24000   -0.000909     24000   0.000273      24000   0.000022      
     26000   -0.030909     26000   0.008633      26000   0.000700      
********************************************************************************

********************************************************************************
  102 : Copper 
  Source = PNNL-15870 Rev. 1 
  Formula = Cu 
  Molecular weight (g/mole) = 63.546 
  Density (g/cm3) = 8.960000 
  Total atom density (atoms/b-cm) = 8.491E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Cu        29000        29000        1.000000      1.000000      0.084912      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     29000   -1.000000     29000   1.000000      29000   0.084912      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     29000   -1.000000     29000   1.000000      29000   0.084912      
********************************************************************************

********************************************************************************
  103 : Diatomaceous Earth 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.220000 
  Total atom density (atoms/b-cm) = 7.780E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.008956      0.151312      0.001177      
  O         8016         8000         0.546579      0.581761      0.004526      
  Na        11023        11000        0.009896      0.007330      0.000057      
  Mg        12000        12000        0.002774      0.001943      0.000015      
  Al        13027        13000        0.015581      0.009834      0.000077      
  Si        14000        14000        0.394761      0.239358      0.001862      
  K         19000        19000        0.011074      0.004823      0.000038      
  Ca        20000        20000        0.003945      0.001676      0.000013      
  Fe        26000        26000        0.006434      0.001962      0.000015      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.008956     1001    0.151312      1001    0.001177      
     8016    -0.546579     8016    0.581761      8016    0.004526      
     11023   -0.009896     11023   0.007330      11023   0.000057      
     12000   -0.002774     12000   0.001943      12000   0.000015      
     13027   -0.015581     13027   0.009834      13027   0.000077      
     14000   -0.394761     14000   0.239358      14000   0.001862      
     19000   -0.011074     19000   0.004823      19000   0.000038      
     20000   -0.003945     20000   0.001676      20000   0.000013      
     26000   -0.006434     26000   0.001962      26000   0.000015      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.008956     1000    0.151312      1000    0.001177      
     8000    -0.546579     8000    0.581761      8000    0.004526      
     11000   -0.009896     11000   0.007330      11000   0.000057      
     12000   -0.002774     12000   0.001943      12000   0.000015      
     13000   -0.015581     13000   0.009834      13000   0.000077      
     14000   -0.394761     14000   0.239358      14000   0.001862      
     19000   -0.011074     19000   0.004823      19000   0.000038      
     20000   -0.003945     20000   0.001676      20000   0.000013      
     26000   -0.006434     26000   0.001962      26000   0.000015      
********************************************************************************

********************************************************************************
  104 : Earth, Typical Western U.S. 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.520000 
  Total atom density (atoms/b-cm) = 6.831E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.023834      0.316855      0.021645      
  O         8016         8000         0.598898      0.501581      0.034264      
  Al        13027        13000        0.080446      0.039951      0.002729      
  Si        14000        14000        0.296821      0.141613      0.009674      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.023834     1001    0.316855      1001    0.021645      
     8016    -0.598898     8016    0.501581      8016    0.034264      
     13027   -0.080446     13027   0.039951      13027   0.002729      
     14000   -0.296821     14000   0.141613      14000   0.009674      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.023834     1000    0.316855      1000    0.021645      
     8000    -0.598898     8000    0.501581      8000    0.034264      
     13000   -0.080446     13000   0.039951      13000   0.002729      
     14000   -0.296821     14000   0.141613      14000   0.009674      
********************************************************************************

********************************************************************************
  105 : Earth, U.S. Average 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.520000 
  Total atom density (atoms/b-cm) = 4.383E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.513713      0.670604      0.029391      
  Na        11023        11000        0.006140      0.005578      0.000244      
  Mg        12000        12000        0.013303      0.011432      0.000501      
  Al        13027        13000        0.068563      0.053073      0.002326      
  Si        14000        14000        0.271183      0.201665      0.008838      
  K         19000        19000        0.014327      0.007653      0.000335      
  Ca        20000        20000        0.051167      0.026664      0.001169      
  Ti        22000        22000        0.004605      0.002009      0.000088      
  Mn        25055        25000        0.000716      0.000272      0.000012      
  Fe        26000        26000        0.056283      0.021050      0.000923      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.513713     8016    0.670604      8016    0.029391      
     11023   -0.006140     11023   0.005578      11023   0.000244      
     12000   -0.013303     12000   0.011432      12000   0.000501      
     13027   -0.068563     13027   0.053073      13027   0.002326      
     14000   -0.271183     14000   0.201665      14000   0.008838      
     19000   -0.014327     19000   0.007653      19000   0.000335      
     20000   -0.051167     20000   0.026664      20000   0.001169      
     22000   -0.004605     22000   0.002009      22000   0.000088      
     25055   -0.000716     25055   0.000272      25055   0.000012      
     26000   -0.056283     26000   0.021050      26000   0.000923      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.513713     8000    0.670604      8000    0.029391      
     11000   -0.006140     11000   0.005578      11000   0.000244      
     12000   -0.013303     12000   0.011432      12000   0.000501      
     13000   -0.068563     13000   0.053073      13000   0.002326      
     14000   -0.271183     14000   0.201665      14000   0.008838      
     19000   -0.014327     19000   0.007653      19000   0.000335      
     20000   -0.051167     20000   0.026664      20000   0.001169      
     22000   -0.004605     22000   0.002009      22000   0.000088      
     25000   -0.000716     25000   0.000272      25000   0.000012      
     26000   -0.056283     26000   0.021050      26000   0.000923      
********************************************************************************

********************************************************************************
  106 : Ethane 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H6 
  Molecular weight (g/mole) = 30.06904 
  Density (g/cm3) = 0.001253 
  Total atom density (atoms/b-cm) = 2.008E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.201125      0.750000      0.000151      
  C         6000         6000         0.798875      0.250000      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.201125     1001    0.750000      1001    0.000151      
     6000    -0.798875     6000    0.250000      6000    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.201125     1000    0.750000      1000    0.000151      
     6000    -0.798875     6000    0.250000      6000    0.000050      
********************************************************************************

********************************************************************************
  107 : Ethyl Acetate 
  Source = PNNL-15870 Rev. 1 
  Formula = C4H8O2 
  Molecular weight (g/mole) = 88.10512 
  Density (g/cm3) = 0.901000 
  Total atom density (atoms/b-cm) = 8.622E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.091522      0.571429      0.049268      
  C         6000         6000         0.545290      0.285714      0.024634      
  O         8016         8000         0.363189      0.142857      0.012317      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.091522     1001    0.571429      1001    0.049268      
     6000    -0.545290     6000    0.285714      6000    0.024634      
     8016    -0.363189     8016    0.142857      8016    0.012317      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.091522     1000    0.571429      1000    0.049268      
     6000    -0.545290     6000    0.285714      6000    0.024634      
     8000    -0.363189     8000    0.142857      8000    0.012317      
********************************************************************************

********************************************************************************
  108 : Ethyl Alcohol 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H6O 
  Molecular weight (g/mole) = 46.06844 
  Density (g/cm3) = 0.789300 
  Total atom density (atoms/b-cm) = 9.286E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.131269      0.666654      0.061904      
  C         6000         6000         0.521438      0.222232      0.020636      
  O         8016         8000         0.347294      0.111113      0.010318      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.131269     1001    0.666654      1001    0.061904      
     6000    -0.521438     6000    0.222232      6000    0.020636      
     8016    -0.347294     8016    0.111113      8016    0.010318      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.131269     1000    0.666654      1000    0.061904      
     6000    -0.521438     6000    0.222232      6000    0.020636      
     8000    -0.347294     8000    0.111113      8000    0.010318      
********************************************************************************

********************************************************************************
  109 : Ethylene 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H4 
  Molecular weight (g/mole) = 28.05316 
  Density (g/cm3) = 0.001175 
  Total atom density (atoms/b-cm) = 1.513E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.143711      0.666653      0.000101      
  C         6000         6000         0.856289      0.333347      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.143711     1001    0.666653      1001    0.000101      
     6000    -0.856289     6000    0.333347      6000    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.143711     1000    0.666653      1000    0.000101      
     6000    -0.856289     6000    0.333347      6000    0.000050      
********************************************************************************

********************************************************************************
  110 : Ethylene Glycol 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H6O2 
  Molecular weight (g/mole) = 62.06784 
  Density (g/cm3) = 1.114000 
  Total atom density (atoms/b-cm) = 1.081E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.097436      0.600000      0.064852      
  C         6000         6000         0.387018      0.200000      0.021617      
  O         8016         8000         0.515546      0.200000      0.021617      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.097436     1001    0.600000      1001    0.064852      
     6000    -0.387018     6000    0.200000      6000    0.021617      
     8016    -0.515546     8016    0.200000      8016    0.021617      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.097436     1000    0.600000      1000    0.064852      
     6000    -0.387018     6000    0.200000      6000    0.021617      
     8000    -0.515546     8000    0.200000      8000    0.021617      
********************************************************************************

********************************************************************************
  111 : Explosive compound, AN 
  Source = PNNL-15870 Rev. 1 
  Formula = NH4NO3 
  Molecular weight (g/mole) = 80.04336 
  Density (g/cm3) = 1.720000 
  Total atom density (atoms/b-cm) = 1.165E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.050370      0.444444      0.051762      
  N         7014         7000         0.349978      0.222222      0.025881      
  O         8016         8000         0.599652      0.333333      0.038822      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.050370     1001    0.444444      1001    0.051762      
     7014    -0.349978     7014    0.222222      7014    0.025881      
     8016    -0.599652     8016    0.333333      8016    0.038822      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.050370     1000    0.444444      1000    0.051762      
     7000    -0.349978     7000    0.222222      7000    0.025881      
     8000    -0.599652     8000    0.333333      8000    0.038822      
********************************************************************************

********************************************************************************
  112 : Explosive compound, EGDN 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H4N2O6 
  Molecular weight (g/mole) = 152.06296 
  Density (g/cm3) = 1.490000 
  Total atom density (atoms/b-cm) = 8.261E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.026514      0.285714      0.023603      
  C         6000         6000         0.157970      0.142857      0.011802      
  N         7014         7000         0.184222      0.142857      0.011802      
  O         8016         8000         0.631294      0.428571      0.035405      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.026514     1001    0.285714      1001    0.023603      
     6000    -0.157970     6000    0.142857      6000    0.011802      
     7014    -0.184222     7014    0.142857      7014    0.011802      
     8016    -0.631294     8016    0.428571      8016    0.035405      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.026514     1000    0.285714      1000    0.023603      
     6000    -0.157970     6000    0.142857      6000    0.011802      
     7000    -0.184222     7000    0.142857      7000    0.011802      
     8000    -0.631294     8000    0.428571      8000    0.035405      
********************************************************************************

********************************************************************************
  113 : Explosive compound, HMX 
  Source = PNNL-15870 Rev. 1 
  Formula = C4H8N8O8 
  Molecular weight (g/mole) = 296.15512 
  Density (g/cm3) = 1.890000 
  Total atom density (atoms/b-cm) = 1.076E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.027227      0.285714      0.030746      
  C         6000         6000         0.162222      0.142857      0.015373      
  N         7014         7000         0.378361      0.285714      0.030746      
  O         8016         8000         0.432190      0.285714      0.030746      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.027227     1001    0.285714      1001    0.030746      
     6000    -0.162222     6000    0.142857      6000    0.015373      
     7014    -0.378361     7014    0.285714      7014    0.030746      
     8016    -0.432190     8016    0.285714      8016    0.030746      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.027227     1000    0.285714      1000    0.030746      
     6000    -0.162222     6000    0.142857      6000    0.015373      
     7000    -0.378361     7000    0.285714      7000    0.030746      
     8000    -0.432190     8000    0.285714      8000    0.030746      
********************************************************************************

********************************************************************************
  114 : Explosive compound, NC 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.490000 
  Total atom density (atoms/b-cm) = 8.647E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.029216      0.300771      0.026009      
  C         6000         6000         0.271296      0.234383      0.020268      
  N         7014         7000         0.121276      0.089844      0.007769      
  O         8016         8000         0.578212      0.375002      0.032428      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.029216     1001    0.300771      1001    0.026009      
     6000    -0.271296     6000    0.234383      6000    0.020268      
     7014    -0.121276     7014    0.089844      7014    0.007769      
     8016    -0.578212     8016    0.375002      8016    0.032428      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.029216     1000    0.300771      1000    0.026009      
     6000    -0.271296     6000    0.234383      6000    0.020268      
     7000    -0.121276     7000    0.089844      7000    0.007769      
     8000    -0.578212     8000    0.375002      8000    0.032428      
********************************************************************************

********************************************************************************
  115 : Explosive compound, NG 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H5N3O9 
  Molecular weight (g/mole) = 227.0865 
  Density (g/cm3) = 1.600000 
  Total atom density (atoms/b-cm) = 8.486E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.022193      0.250000      0.021215      
  C         6000         6000         0.158671      0.150000      0.012729      
  N         7014         7000         0.185040      0.150000      0.012729      
  O         8016         8000         0.634096      0.450000      0.038188      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.022193     1001    0.250000      1001    0.021215      
     6000    -0.158671     6000    0.150000      6000    0.012729      
     7014    -0.185040     7014    0.150000      7014    0.012729      
     8016    -0.634096     8016    0.450000      8016    0.038188      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.022193     1000    0.250000      1000    0.021215      
     6000    -0.158671     6000    0.150000      6000    0.012729      
     7000    -0.185040     7000    0.150000      7000    0.012729      
     8000    -0.634096     8000    0.450000      8000    0.038188      
********************************************************************************

********************************************************************************
  116 : Explosive compound, PETN 
  Source = PNNL-15870 Rev. 1 
  Formula = C5H8N4O12 
  Molecular weight (g/mole) = 316.13662 
  Density (g/cm3) = 1.770000 
  Total atom density (atoms/b-cm) = 9.778E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.025506      0.275862      0.026974      
  C         6000         6000         0.189961      0.172414      0.016859      
  N         7014         7000         0.177223      0.137931      0.013487      
  O         8016         8000         0.607310      0.413793      0.040460      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.025506     1001    0.275862      1001    0.026974      
     6000    -0.189961     6000    0.172414      6000    0.016859      
     7014    -0.177223     7014    0.137931      7014    0.013487      
     8016    -0.607310     8016    0.413793      8016    0.040460      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.025506     1000    0.275862      1000    0.026974      
     6000    -0.189961     6000    0.172414      6000    0.016859      
     7000    -0.177223     7000    0.137931      7000    0.013487      
     8000    -0.607310     8000    0.413793      8000    0.040460      
********************************************************************************

********************************************************************************
  117 : Explosive compound, RDX 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H6N6O6 
  Molecular weight (g/mole) = 222.11634 
  Density (g/cm3) = 1.820000 
  Total atom density (atoms/b-cm) = 1.036E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.027227      0.285714      0.029607      
  C         6000         6000         0.162222      0.142857      0.014803      
  N         7014         7000         0.378361      0.285714      0.029607      
  O         8016         8000         0.432190      0.285714      0.029607      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.027227     1001    0.285714      1001    0.029607      
     6000    -0.162222     6000    0.142857      6000    0.014803      
     7014    -0.378361     7014    0.285714      7014    0.029607      
     8016    -0.432190     8016    0.285714      8016    0.029607      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.027227     1000    0.285714      1000    0.029607      
     6000    -0.162222     6000    0.142857      6000    0.014803      
     7000    -0.378361     7000    0.285714      7000    0.029607      
     8000    -0.432190     8000    0.285714      8000    0.029607      
********************************************************************************

********************************************************************************
  118 : Explosive compound, TNT 
  Source = PNNL-15870 Rev. 1 
  Formula = C6H2(NO2)3CH3 
  Molecular weight (g/mole) = 227.1311 
  Density (g/cm3) = 1.650000 
  Total atom density (atoms/b-cm) = 9.187E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.022189      0.238095      0.021874      
  C         6000         6000         0.370160      0.333333      0.030624      
  N         7014         7000         0.185004      0.142857      0.013124      
  O         8016         8000         0.422648      0.285714      0.026249      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.022189     1001    0.238095      1001    0.021874      
     6000    -0.370160     6000    0.333333      6000    0.030624      
     7014    -0.185004     7014    0.142857      7014    0.013124      
     8016    -0.422648     8016    0.285714      8016    0.026249      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.022189     1000    0.238095      1000    0.021874      
     6000    -0.370160     6000    0.333333      6000    0.030624      
     7000    -0.185004     7000    0.142857      7000    0.013124      
     8000    -0.422648     8000    0.285714      8000    0.026249      
********************************************************************************

********************************************************************************
  119 : Eye Lens (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.100000 
  Total atom density (atoms/b-cm) = 1.055E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.099269      0.618329      0.065241      
  C         6000         6000         0.193710      0.101257      0.010684      
  N         7014         7000         0.053270      0.023877      0.002519      
  O         8016         8000         0.653751      0.256537      0.027068      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.099269     1001    0.618329      1001    0.065241      
     6000    -0.193710     6000    0.101257      6000    0.010684      
     7014    -0.053270     7014    0.023877      7014    0.002519      
     8016    -0.653751     8016    0.256537      8016    0.027068      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.099269     1000    0.618329      1000    0.065241      
     6000    -0.193710     6000    0.101257      6000    0.010684      
     7000    -0.053270     7000    0.023877      7000    0.002519      
     8000    -0.653751     8000    0.256537      8000    0.027068      
********************************************************************************

********************************************************************************
  120 : Felt 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.185000 
  Total atom density (atoms/b-cm) = 1.272E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.044200      0.384052      0.004886      
  C         6000         6000         0.434600      0.316901      0.004031      
  N         7014         7000         0.176500      0.110360      0.001404      
  O         8016         8000         0.344700      0.188686      0.002400      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.044200     1001    0.384052      1001    0.004886      
     6000    -0.434600     6000    0.316901      6000    0.004031      
     7014    -0.176500     7014    0.110360      7014    0.001404      
     8016    -0.344700     8016    0.188686      8016    0.002400      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.044200     1000    0.384052      1000    0.004886      
     6000    -0.434600     6000    0.316901      6000    0.004031      
     7000    -0.176500     7000    0.110360      7000    0.001404      
     8000    -0.344700     8000    0.188686      8000    0.002400      
********************************************************************************

********************************************************************************
  121 : Ferric Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = Fe2O3 
  Molecular weight (g/mole) = 159.6882 
  Density (g/cm3) = 5.200000 
  Total atom density (atoms/b-cm) = 9.805E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.300567      0.599991      0.058829      
  Fe        26000        26000        0.699433      0.400009      0.039221      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.300567     8016    0.599991      8016    0.058829      
     26000   -0.699433     26000   0.400009      26000   0.039221      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.300567     8000    0.599991      8000    0.058829      
     26000   -0.699433     26000   0.400009      26000   0.039221      
********************************************************************************

********************************************************************************
  122 : Ferrous Sulfate Dosimeter Solution 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O:FeSO4 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.024000 
  Total atom density (atoms/b-cm) = 1.004E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.108259      0.660018      0.066234      
  N         7014         7000         0.000027      0.000012      0.000001      
  O         8016         8000         0.878636      0.337467      0.033865      
  Na        11023        11000        0.000022      0.000006      0.000001      
  S         16000        16000        0.012968      0.002485      0.000249      
  Cl        17000        17000        0.000034      0.000006      0.000001      
  Fe        26000        26000        0.000054      0.000006      0.000001      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.108259     1001    0.660018      1001    0.066234      
     7014    -0.000027     7014    0.000012      7014    0.000001      
     8016    -0.878636     8016    0.337467      8016    0.033865      
     11023   -0.000022     11023   0.000006      11023   0.000001      
     16000   -0.012968     16000   0.002485      16000   0.000249      
     17000   -0.000034     17000   0.000006      17000   0.000001      
     26000   -0.000054     26000   0.000006      26000   0.000001      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.108259     1000    0.660018      1000    0.066234      
     7000    -0.000027     7000    0.000012      7000    0.000001      
     8000    -0.878636     8000    0.337467      8000    0.033865      
     11000   -0.000022     11000   0.000006      11000   0.000001      
     16000   -0.012968     16000   0.002485      16000   0.000249      
     17000   -0.000034     17000   0.000006      17000   0.000001      
     26000   -0.000054     26000   0.000006      26000   0.000001      
********************************************************************************

********************************************************************************
  123 : Fertilizer (Muriate of Potash) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.270000 
  Total atom density (atoms/b-cm) = 2.070E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.000050      0.001849      0.000038      
  O         8016         8000         0.000718      0.001658      0.000034      
  Na        11023        11000        0.008487      0.013643      0.000282      
  Mg        12000        12000        0.000206      0.000313      0.000006      
  S         16000        16000        0.000159      0.000183      0.000004      
  Cl        17000        17000        0.477922      0.498162      0.010310      
  K         19000        19000        0.511852      0.483786      0.010012      
  Ca        20000        20000        0.000276      0.000254      0.000005      
  Br        -            35000        0.000330      0.000153      0.000003      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.000050     1001    0.001849      1001    0.000038      
     8016    -0.000718     8016    0.001658      8016    0.000034      
     11023   -0.008487     11023   0.013643      11023   0.000282      
     12000   -0.000206     12000   0.000313      12000   0.000006      
     16000   -0.000159     16000   0.000183      16000   0.000004      
     17000   -0.477922     17000   0.498162      17000   0.010310      
     19000   -0.511852     19000   0.483786      19000   0.010012      
     20000   -0.000276     20000   0.000254      20000   0.000005      
     -       -0.000330     -       0.000153      -       0.000003      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.000050     1000    0.001849      1000    0.000038      
     8000    -0.000718     8000    0.001658      8000    0.000034      
     11000   -0.008487     11000   0.013643      11000   0.000282      
     12000   -0.000206     12000   0.000313      12000   0.000006      
     16000   -0.000159     16000   0.000183      16000   0.000004      
     17000   -0.477922     17000   0.498162      17000   0.010310      
     19000   -0.511852     19000   0.483786      19000   0.010012      
     20000   -0.000276     20000   0.000254      20000   0.000005      
     35000   -0.000330     35000   0.000153      35000   0.000003      
********************************************************************************

********************************************************************************
  124 : Fiberglass, Type C 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.490000 
  Total atom density (atoms/b-cm) = 7.354E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.018579      0.035039      0.002577      
  O         8016         8000         0.478631      0.609968      0.044859      
  Na        11023        11000        0.059171      0.052479      0.003859      
  Mg        12000        12000        0.018037      0.015131      0.001113      
  Al        13027        13000        0.021107      0.015950      0.001173      
  Si        14000        14000        0.302924      0.219918      0.016173      
  S         16000        16000        0.000399      0.000254      0.000019      
  Ca        20000        20000        0.099757      0.050751      0.003732      
  Fe        26000        26000        0.001395      0.000509      0.000037      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.018579     -       0.035039      -       0.002577      
     8016    -0.478631     8016    0.609968      8016    0.044859      
     11023   -0.059171     11023   0.052479      11023   0.003859      
     12000   -0.018037     12000   0.015131      12000   0.001113      
     13027   -0.021107     13027   0.015950      13027   0.001173      
     14000   -0.302924     14000   0.219918      14000   0.016173      
     16000   -0.000399     16000   0.000254      16000   0.000019      
     20000   -0.099757     20000   0.050751      20000   0.003732      
     26000   -0.001395     26000   0.000509      26000   0.000037      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.018579     5000    0.035039      5000    0.002577      
     8000    -0.478631     8000    0.609968      8000    0.044859      
     11000   -0.059171     11000   0.052479      11000   0.003859      
     12000   -0.018037     12000   0.015131      12000   0.001113      
     13000   -0.021107     13000   0.015950      13000   0.001173      
     14000   -0.302924     14000   0.219918      14000   0.016173      
     16000   -0.000399     16000   0.000254      16000   0.000019      
     20000   -0.099757     20000   0.050751      20000   0.003732      
     26000   -0.001395     26000   0.000509      26000   0.000037      
********************************************************************************

********************************************************************************
  125 : Fiberglass, Type E 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.565000 
  Total atom density (atoms/b-cm) = 7.446E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.022803      0.043757      0.003258      
  O         8016         8000         0.471950      0.611965      0.045565      
  F         9019         9000         0.004895      0.005345      0.000398      
  Na        11023        11000        0.007262      0.006554      0.000488      
  Mg        12000        12000        0.014759      0.012597      0.000938      
  Al        13027        13000        0.072536      0.055772      0.004153      
  Si        14000        14000        0.247102      0.182528      0.013590      
  K         19000        19000        0.008127      0.004312      0.000321      
  Ca        20000        20000        0.143428      0.074244      0.005528      
  Ti        22000        22000        0.004400      0.001907      0.000142      
  Fe        26000        26000        0.002739      0.001017      0.000076      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.022803     -       0.043757      -       0.003258      
     8016    -0.471950     8016    0.611965      8016    0.045565      
     9019    -0.004895     9019    0.005345      9019    0.000398      
     11023   -0.007262     11023   0.006554      11023   0.000488      
     12000   -0.014759     12000   0.012597      12000   0.000938      
     13027   -0.072536     13027   0.055772      13027   0.004153      
     14000   -0.247102     14000   0.182528      14000   0.013590      
     19000   -0.008127     19000   0.004312      19000   0.000321      
     20000   -0.143428     20000   0.074244      20000   0.005528      
     22000   -0.004400     22000   0.001907      22000   0.000142      
     26000   -0.002739     26000   0.001017      26000   0.000076      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.022803     5000    0.043757      5000    0.003258      
     8000    -0.471950     8000    0.611965      8000    0.045565      
     9000    -0.004895     9000    0.005345      9000    0.000398      
     11000   -0.007262     11000   0.006554      11000   0.000488      
     12000   -0.014759     12000   0.012597      12000   0.000938      
     13000   -0.072536     13000   0.055772      13000   0.004153      
     14000   -0.247102     14000   0.182528      14000   0.013590      
     19000   -0.008127     19000   0.004312      19000   0.000321      
     20000   -0.143428     20000   0.074244      20000   0.005528      
     22000   -0.004400     22000   0.001907      22000   0.000142      
     26000   -0.002739     26000   0.001017      26000   0.000076      
********************************************************************************

********************************************************************************
  126 : Fiberglass, Type R 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.550000 
  Total atom density (atoms/b-cm) = 7.433E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.486722      0.628478      0.046716      
  Mg        12000        12000        0.036182      0.030755      0.002286      
  Al        13027        13000        0.132313      0.101309      0.007531      
  Si        14000        14000        0.280461      0.206302      0.015335      
  Ca        20000        20000        0.064322      0.033156      0.002465      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.486722     8016    0.628478      8016    0.046716      
     12000   -0.036182     12000   0.030755      12000   0.002286      
     13027   -0.132313     13027   0.101309      13027   0.007531      
     14000   -0.280461     14000   0.206302      14000   0.015335      
     20000   -0.064322     20000   0.033156      20000   0.002465      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.486722     8000    0.628478      8000    0.046716      
     12000   -0.036182     12000   0.030755      12000   0.002286      
     13000   -0.132313     13000   0.101309      13000   0.007531      
     14000   -0.280461     14000   0.206302      14000   0.015335      
     20000   -0.064322     20000   0.033156      20000   0.002465      
********************************************************************************

********************************************************************************
  127 : Freon-12 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.120000 
  Total atom density (atoms/b-cm) = 2.789E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.099335      0.200004      0.005578      
  F         9019         9000         0.314247      0.399998      0.011156      
  Cl        17000        17000        0.586418      0.399998      0.011156      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.099335     6000    0.200004      6000    0.005578      
     9019    -0.314247     9019    0.399998      9019    0.011156      
     17000   -0.586418     17000   0.399998      17000   0.011156      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.099335     6000    0.200004      6000    0.005578      
     9000    -0.314247     9000    0.399998      9000    0.011156      
     17000   -0.586418     17000   0.399998      17000   0.011156      
********************************************************************************

********************************************************************************
  128 : Freon-12B2 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.800000 
  Total atom density (atoms/b-cm) = 2.583E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.057245      0.200003      0.005166      
  F         9019         9000         0.181096      0.399999      0.010333      
  Br        -            35000        0.761659      0.399999      0.010333      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.057245     6000    0.200003      6000    0.005166      
     9019    -0.181096     9019    0.399999      9019    0.010333      
     -       -0.761659     -       0.399999      -       0.010333      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.057245     6000    0.200003      6000    0.005166      
     9000    -0.181096     9000    0.399999      9000    0.010333      
     35000   -0.761659     35000   0.399999      35000   0.010333      
********************************************************************************

********************************************************************************
  129 : Freon-13 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.950000 
  Total atom density (atoms/b-cm) = 2.738E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.114983      0.200004      0.005477      
  F         9019         9000         0.545622      0.599997      0.016430      
  Cl        17000        17000        0.339396      0.199999      0.005477      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.114983     6000    0.200004      6000    0.005477      
     9019    -0.545622     9019    0.599997      9019    0.016430      
     17000   -0.339396     17000   0.199999      17000   0.005477      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.114983     6000    0.200004      6000    0.005477      
     9000    -0.545622     9000    0.599997      9000    0.016430      
     17000   -0.339396     17000   0.199999      17000   0.005477      
********************************************************************************

********************************************************************************
  130 : Freon-13B1 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.500000 
  Total atom density (atoms/b-cm) = 3.033E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.080659      0.200003      0.006066      
  F         9019         9000         0.382749      0.599998      0.018199      
  Br        -            35000        0.536592      0.199999      0.006066      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.080659     6000    0.200003      6000    0.006066      
     9019    -0.382749     9019    0.599998      9019    0.018199      
     -       -0.536592     -       0.199999      -       0.006066      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.080659     6000    0.200003      6000    0.006066      
     9000    -0.382749     9000    0.599998      9000    0.018199      
     35000   -0.536592     35000   0.199999      35000   0.006066      
********************************************************************************

********************************************************************************
  131 : Freon-13I1 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.800000 
  Total atom density (atoms/b-cm) = 2.767E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.061309      0.200005      0.005533      
  F         9019         9000         0.290924      0.599996      0.016599      
  I         53127        53000        0.647767      0.199999      0.005533      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.061309     6000    0.200005      6000    0.005533      
     9019    -0.290924     9019    0.599996      9019    0.016599      
     53127   -0.647767     53127   0.199999      53127   0.005533      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.061309     6000    0.200005      6000    0.005533      
     9000    -0.290924     9000    0.599996      9000    0.016599      
     53000   -0.647767     53000   0.199999      53000   0.005533      
********************************************************************************

********************************************************************************
  132 : Gadolinium 
  Source = PNNL-15870 Rev. 1 
  Formula = Gd 
  Molecular weight (g/mole) = 157.25 
  Density (g/cm3) = 7.900400 
  Total atom density (atoms/b-cm) = 3.026E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Gd        64000        64000        1.000000      1.000000      0.030256      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     64000   -1.000000     64000   1.000000      64000   0.030256      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     64000   -1.000000     64000   1.000000      64000   0.030256      
********************************************************************************

********************************************************************************
  133 : Gadolinium Oxysulfide 
  Source = PNNL-15870 Rev. 1 
  Formula = Gd2O2S 
  Molecular weight (g/mole) = 378.5638 
  Density (g/cm3) = 7.440000 
  Total atom density (atoms/b-cm) = 5.918E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.084528      0.400012      0.023671      
  S         16000        16000        0.084690      0.199976      0.011834      
  Gd        64000        64000        0.830782      0.400012      0.023671      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.084528     8016    0.400012      8016    0.023671      
     16000   -0.084690     16000   0.199976      16000   0.011834      
     64000   -0.830782     64000   0.400012      64000   0.023671      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.084528     8000    0.400012      8000    0.023671      
     16000   -0.084690     16000   0.199976      16000   0.011834      
     64000   -0.830782     64000   0.400012      64000   0.023671      
********************************************************************************

********************************************************************************
  134 : Gadolinium Silicate (GSO) 
  Source = PNNL-15870 Rev. 1 
  Formula = Gd2SiO5 
  Molecular weight (g/mole) = 422.5825 
  Density (g/cm3) = 6.710000 
  Total atom density (atoms/b-cm) = 7.650E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.189305      0.625000      0.047811      
  Si        14000        14000        0.066462      0.125000      0.009562      
  Gd        64000        64000        0.744233      0.250000      0.019125      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.189305     8016    0.625000      8016    0.047811      
     14000   -0.066462     14000   0.125000      14000   0.009562      
     64000   -0.744233     64000   0.250000      64000   0.019125      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.189305     8000    0.625000      8000    0.047811      
     14000   -0.066462     14000   0.125000      14000   0.009562      
     64000   -0.744233     64000   0.250000      64000   0.019125      
********************************************************************************

********************************************************************************
  135 : Gafchromic Sensor (GS) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.300000 
  Total atom density (atoms/b-cm) = 1.248E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.089700      0.558087      0.069671      
  C         6000         6000         0.605800      0.316304      0.039487      
  N         7014         7000         0.112200      0.050234      0.006271      
  O         8016         8000         0.192300      0.075374      0.009410      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.089700     1001    0.558087      1001    0.069671      
     6000    -0.605800     6000    0.316304      6000    0.039487      
     7014    -0.112200     7014    0.050234      7014    0.006271      
     8016    -0.192300     8016    0.075374      8016    0.009410      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.089700     1000    0.558087      1000    0.069671      
     6000    -0.605800     6000    0.316304      6000    0.039487      
     7000    -0.112200     7000    0.050234      7000    0.006271      
     8000    -0.192300     8000    0.075374      8000    0.009410      
********************************************************************************

********************************************************************************
  136 : Gallium Arsenide 
  Source = PNNL-15870 Rev. 1 
  Formula = GaAs 
  Molecular weight (g/mole) = 144.6446 
  Density (g/cm3) = 5.310000 
  Total atom density (atoms/b-cm) = 4.422E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ga        31000        31000        0.482030      0.500000      0.022108      
  As        33075        33000        0.517970      0.500000      0.022108      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     31000   -0.482030     31000   0.500000      31000   0.022108      
     33075   -0.517970     33075   0.500000      33075   0.022108      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     31000   -0.482030     31000   0.500000      31000   0.022108      
     33000   -0.517970     33000   0.500000      33000   0.022108      
********************************************************************************

********************************************************************************
  137 : Gasoline 
  Source = PNNL-15870 Rev. 1 
  Formula = C8H18 
  Molecular weight (g/mole) = 114.22852 
  Density (g/cm3) = 0.721000 
  Total atom density (atoms/b-cm) = 9.811E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.157000      0.689368      0.067632      
  C         6000         6000         0.843000      0.310632      0.030475      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.157000     1001    0.689368      1001    0.067632      
     6000    -0.843000     6000    0.310632      6000    0.030475      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.157000     1000    0.689368      1000    0.067632      
     6000    -0.843000     6000    0.310632      6000    0.030475      
********************************************************************************

********************************************************************************
  138 : Germanium, High Purity 
  Source = PNNL-15870 Rev. 1 
  Formula = Ge 
  Molecular weight (g/mole) = 72.64 
  Density (g/cm3) = 5.323000 
  Total atom density (atoms/b-cm) = 4.413E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ge        -            32000        1.000000      1.000000      0.044130      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -1.000000     -       1.000000      -       0.044130      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     32000   -1.000000     32000   1.000000      32000   0.044130      
********************************************************************************

********************************************************************************
  139 : Glass Scintillator, Li Doped  (GS1, GS2, GS3) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.660000 
  Total atom density (atoms/b-cm) = 8.233E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.027874      0.078133      0.006433      
  O         8016         8000         0.477940      0.581195      0.047852      
  Mg        12000        12000        0.144729      0.115854      0.009539      
  Al        13027        13000        0.058218      0.041980      0.003456      
  Si        14000        14000        0.257089      0.178096      0.014663      
  Ce        -            58000        0.034151      0.004742      0.000390      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.027874     -       0.078133      -       0.006433      
     8016    -0.477940     8016    0.581195      8016    0.047852      
     12000   -0.144729     12000   0.115854      12000   0.009539      
     13027   -0.058218     13027   0.041980      13027   0.003456      
     14000   -0.257089     14000   0.178096      14000   0.014663      
     -       -0.034151     -       0.004742      -       0.000390      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.027874     3000    0.078133      3000    0.006433      
     8000    -0.477940     8000    0.581195      8000    0.047852      
     12000   -0.144729     12000   0.115854      12000   0.009539      
     13000   -0.058218     13000   0.041980      13000   0.003456      
     14000   -0.257089     14000   0.178096      14000   0.014663      
     58000   -0.034151     58000   0.004742      58000   0.000390      
********************************************************************************

********************************************************************************
  140 : Glass Scintillator, Li Doped  (GS10, GS20, GS30) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.500000 
  Total atom density (atoms/b-cm) = 8.650E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.083623      0.209694      0.018138      
  O         8016         8000         0.501077      0.545112      0.047151      
  Mg        12000        12000        0.024121      0.017274      0.001494      
  Al        13027        13000        0.095265      0.061454      0.005316      
  Si        14000        14000        0.261764      0.162223      0.014032      
  Ce        -            58000        0.034151      0.004242      0.000367      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.083623     -       0.209694      -       0.018138      
     8016    -0.501077     8016    0.545112      8016    0.047151      
     12000   -0.024121     12000   0.017274      12000   0.001494      
     13027   -0.095265     13027   0.061454      13027   0.005316      
     14000   -0.261764     14000   0.162223      14000   0.014032      
     -       -0.034151     -       0.004242      -       0.000367      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.083623     3000    0.209694      3000    0.018138      
     8000    -0.501077     8000    0.545112      8000    0.047151      
     12000   -0.024121     12000   0.017274      12000   0.001494      
     13000   -0.095265     13000   0.061454      13000   0.005316      
     14000   -0.261764     14000   0.162223      14000   0.014032      
     58000   -0.034151     58000   0.004242      58000   0.000367      
********************************************************************************

********************************************************************************
  141 : Glass Scintillator, Li Doped  (GSF1) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.420000 
  Total atom density (atoms/b-cm) = 7.863E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.046550      0.124299      0.009774      
  O         8016         8000         0.505813      0.585945      0.046074      
  Na        11023        11000        0.017840      0.014383      0.001131      
  Al        13027        13000        0.095456      0.065570      0.005156      
  Si        14000        14000        0.313809      0.207087      0.016284      
  Ce        -            58000        0.020531      0.002716      0.000214      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.046550     -       0.124299      -       0.009774      
     8016    -0.505813     8016    0.585945      8016    0.046074      
     11023   -0.017840     11023   0.014383      11023   0.001131      
     13027   -0.095456     13027   0.065570      13027   0.005156      
     14000   -0.313809     14000   0.207087      14000   0.016284      
     -       -0.020531     -       0.002716      -       0.000214      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.046550     3000    0.124299      3000    0.009774      
     8000    -0.505813     8000    0.585945      8000    0.046074      
     11000   -0.017840     11000   0.014383      11000   0.001131      
     13000   -0.095456     13000   0.065570      13000   0.005156      
     14000   -0.313809     14000   0.207087      14000   0.016284      
     58000   -0.020531     58000   0.002716      58000   0.000214      
********************************************************************************

********************************************************************************
  142 : Glass Scintillator, Li Doped  (KG1, KG2, KG3) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.420000 
  Total atom density (atoms/b-cm) = 8.568E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.097560      0.239068      0.020484      
  O         8016         8000         0.513850      0.546269      0.046806      
  Si        14000        14000        0.345902      0.209481      0.017949      
  Ce        -            58000        0.042688      0.005182      0.000444      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.097560     -       0.239068      -       0.020484      
     8016    -0.513850     8016    0.546269      8016    0.046806      
     14000   -0.345902     14000   0.209481      14000   0.017949      
     -       -0.042688     -       0.005182      -       0.000444      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.097560     3000    0.239068      3000    0.020484      
     8000    -0.513850     8000    0.546269      8000    0.046806      
     14000   -0.345902     14000   0.209481      14000   0.017949      
     58000   -0.042688     58000   0.005182      58000   0.000444      
********************************************************************************

********************************************************************************
  143 : Glass, Borosilicate (Pyrex Glass) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.230000 
  Total atom density (atoms/b-cm) = 7.064E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.040064      0.070449      0.004977      
  O         8016         8000         0.539562      0.641095      0.045289      
  Na        11023        11000        0.028191      0.023311      0.001647      
  Al        13027        13000        0.011644      0.008204      0.000580      
  Si        14000        14000        0.377220      0.255327      0.018037      
  K         19000        19000        0.003321      0.001615      0.000114      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.040064     -       0.070449      -       0.004977      
     8016    -0.539562     8016    0.641095      8016    0.045289      
     11023   -0.028191     11023   0.023311      11023   0.001647      
     13027   -0.011644     13027   0.008204      13027   0.000580      
     14000   -0.377220     14000   0.255327      14000   0.018037      
     19000   -0.003321     19000   0.001615      19000   0.000114      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.040064     5000    0.070449      5000    0.004977      
     8000    -0.539562     8000    0.641095      8000    0.045289      
     11000   -0.028191     11000   0.023311      11000   0.001647      
     13000   -0.011644     13000   0.008204      13000   0.000580      
     14000   -0.377220     14000   0.255327      14000   0.018037      
     19000   -0.003321     19000   0.001615      19000   0.000114      
********************************************************************************

********************************************************************************
  144 : Glass, Foam 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.128000 
  Total atom density (atoms/b-cm) = 4.086E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.001000      0.018718      0.000076      
  B         -            5000         0.015000      0.026176      0.000107      
  O         8016         8000         0.534000      0.629684      0.002573      
  Na        11023        11000        0.161000      0.132122      0.000540      
  Si        14000        14000        0.279000      0.187416      0.000766      
  S         16000        16000        0.010000      0.005884      0.000024      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.001000     1001    0.018718      1001    0.000076      
     -       -0.015000     -       0.026176      -       0.000107      
     8016    -0.534000     8016    0.629684      8016    0.002573      
     11023   -0.161000     11023   0.132122      11023   0.000540      
     14000   -0.279000     14000   0.187416      14000   0.000766      
     16000   -0.010000     16000   0.005884      16000   0.000024      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.001000     1000    0.018718      1000    0.000076      
     5000    -0.015000     5000    0.026176      5000    0.000107      
     8000    -0.534000     8000    0.629684      8000    0.002573      
     11000   -0.161000     11000   0.132122      11000   0.000540      
     14000   -0.279000     14000   0.187416      14000   0.000766      
     16000   -0.010000     16000   0.005884      16000   0.000024      
********************************************************************************

********************************************************************************
  145 : Glass, Lead 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 6.220000 
  Total atom density (atoms/b-cm) = 6.177E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.156453      0.592955      0.036629      
  Si        14000        14000        0.080866      0.174592      0.010785      
  Ti        22000        22000        0.008092      0.010251      0.000633      
  As        33075        33000        0.002651      0.002146      0.000133      
  Pb        82000        82000        0.751938      0.220056      0.013594      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.156453     8016    0.592955      8016    0.036629      
     14000   -0.080866     14000   0.174592      14000   0.010785      
     22000   -0.008092     22000   0.010251      22000   0.000633      
     33075   -0.002651     33075   0.002146      33075   0.000133      
     82000   -0.751938     82000   0.220056      82000   0.013594      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.156453     8000    0.592955      8000    0.036629      
     14000   -0.080866     14000   0.174592      14000   0.010785      
     22000   -0.008092     22000   0.010251      22000   0.000633      
     33000   -0.002651     33000   0.002146      33000   0.000133      
     82000   -0.751938     82000   0.220056      82000   0.013594      
********************************************************************************

********************************************************************************
  146 : Glass, Plate 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.400000 
  Total atom density (atoms/b-cm) = 6.878E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.459800      0.603858      0.041536      
  Na        11023        11000        0.096441      0.088145      0.006063      
  Si        14000        14000        0.336553      0.251791      0.017319      
  Ca        20000        20000        0.107205      0.056205      0.003866      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.459800     8016    0.603858      8016    0.041536      
     11023   -0.096441     11023   0.088145      11023   0.006063      
     14000   -0.336553     14000   0.251791      14000   0.017319      
     20000   -0.107205     20000   0.056205      20000   0.003866      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.459800     8000    0.603858      8000    0.041536      
     11000   -0.096441     11000   0.088145      11000   0.006063      
     14000   -0.336553     14000   0.251791      14000   0.017319      
     20000   -0.107205     20000   0.056205      20000   0.003866      
********************************************************************************

********************************************************************************
  147 : Glycerol 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H8O3 
  Molecular weight (g/mole) = 92.09382 
  Density (g/cm3) = 1.261300 
  Total atom density (atoms/b-cm) = 1.155E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.087554      0.571417      0.065980      
  C         6000         6000         0.391262      0.214294      0.024744      
  O         8016         8000         0.521185      0.214289      0.024743      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.087554     1001    0.571417      1001    0.065980      
     6000    -0.391262     6000    0.214294      6000    0.024744      
     8016    -0.521185     8016    0.214289      8016    0.024743      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.087554     1000    0.571417      1000    0.065980      
     6000    -0.391262     6000    0.214294      6000    0.024744      
     8000    -0.521185     8000    0.214289      8000    0.024743      
********************************************************************************

********************************************************************************
  148 : Gold 
  Source = PNNL-15870 Rev. 1 
  Formula = Au 
  Molecular weight (g/mole) = 196.96655 
  Density (g/cm3) = 19.320000 
  Total atom density (atoms/b-cm) = 5.907E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Au        79197        79000        1.000000      1.000000      0.059070      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     79197   -1.000000     79197   1.000000      79197   0.059070      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     79000   -1.000000     79000   1.000000      79000   0.059070      
********************************************************************************

********************************************************************************
  149 : Gypsum (Plaster of Paris) 
  Source = PNNL-15870 Rev. 1 
  Formula = CaSO4-2(H2O) 
  Molecular weight (g/mole) = 172.17116 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 9.738E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.023416      0.333321      0.032458      
  O         8016         8000         0.557572      0.500014      0.048690      
  S         16000        16000        0.186215      0.083324      0.008114      
  Ca        20000        20000        0.232797      0.083341      0.008115      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.023416     1001    0.333321      1001    0.032458      
     8016    -0.557572     8016    0.500014      8016    0.048690      
     16000   -0.186215     16000   0.083324      16000   0.008114      
     20000   -0.232797     20000   0.083341      20000   0.008115      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.023416     1000    0.333321      1000    0.032458      
     8000    -0.557572     8000    0.500014      8000    0.048690      
     16000   -0.186215     16000   0.083324      16000   0.008114      
     20000   -0.232797     20000   0.083341      20000   0.008115      
********************************************************************************

********************************************************************************
  150 : He-3 proportional gas 
  Source = PNNL-15870 Rev. 1 
  Formula = He-3 
  Molecular weight (g/mole) = 3.0160293097 
  Density (g/cm3) = 0.000125 
  Total atom density (atoms/b-cm) = 2.501E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  He-3      2003         2000         1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     2003    -1.000000     2003    1.000000      2003    0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     2000    -1.000000     2000    1.000000      2000    0.000025      
********************************************************************************

********************************************************************************
  151 : Helium, Natural 
  Source = PNNL-15870 Rev. 1 
  Formula = He 
  Molecular weight (g/mole) = 4.002602 
  Density (g/cm3) = 0.000166 
  Total atom density (atoms/b-cm) = 2.502E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  He        2004         2000         1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     2004    -1.000000     2004    1.000000      2004    0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     2000    -1.000000     2000    1.000000      2000    0.000025      
********************************************************************************

********************************************************************************
  152 : Hydrogen 
  Source = PNNL-15870 Rev. 1 
  Formula = H2 
  Molecular weight (g/mole) = 2.01588 
  Density (g/cm3) = 0.000084 
  Total atom density (atoms/b-cm) = 5.004E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         1.000000      1.000000      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -1.000000     1001    1.000000      1001    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -1.000000     1000    1.000000      1000    0.000050      
********************************************************************************

********************************************************************************
  153 : Incoloy-800 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.940000 
  Total atom density (atoms/b-cm) = 8.672E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000650      0.002984      0.000259      
  Al        13027        13000        0.003750      0.007663      0.000665      
  Si        14000        14000        0.006500      0.012760      0.001107      
  S         16000        16000        0.000100      0.000172      0.000015      
  Ti        22000        22000        0.003750      0.004319      0.000375      
  Cr        24000        24000        0.210000      0.222681      0.019312      
  Mn        25055        25000        0.009750      0.009785      0.000849      
  Fe        26000        26000        0.435630      0.430099      0.037300      
  Ni        28000        28000        0.325000      0.305302      0.026477      
  Cu        29000        29000        0.004880      0.004234      0.000367      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000650     6000    0.002984      6000    0.000259      
     13027   -0.003750     13027   0.007663      13027   0.000665      
     14000   -0.006500     14000   0.012760      14000   0.001107      
     16000   -0.000100     16000   0.000172      16000   0.000015      
     22000   -0.003750     22000   0.004319      22000   0.000375      
     24000   -0.210000     24000   0.222681      24000   0.019312      
     25055   -0.009750     25055   0.009785      25055   0.000849      
     26000   -0.435630     26000   0.430099      26000   0.037300      
     28000   -0.325000     28000   0.305302      28000   0.026477      
     29000   -0.004880     29000   0.004234      29000   0.000367      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000650     6000    0.002984      6000    0.000259      
     13000   -0.003750     13000   0.007663      13000   0.000665      
     14000   -0.006500     14000   0.012760      14000   0.001107      
     16000   -0.000100     16000   0.000172      16000   0.000015      
     22000   -0.003750     22000   0.004319      22000   0.000375      
     24000   -0.210000     24000   0.222681      24000   0.019312      
     25000   -0.009750     25000   0.009785      25000   0.000849      
     26000   -0.435630     26000   0.430099      26000   0.037300      
     28000   -0.325000     28000   0.305302      28000   0.026477      
     29000   -0.004880     29000   0.004234      29000   0.000367      
********************************************************************************

********************************************************************************
  154 : Inconel-600 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.470000 
  Total atom density (atoms/b-cm) = 8.966E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000980      0.004642      0.000416      
  Si        14000        14000        0.003250      0.006583      0.000590      
  S         16000        16000        0.000100      0.000177      0.000016      
  Cr        24000        24000        0.155000      0.169591      0.015205      
  Mn        25055        25000        0.006500      0.006731      0.000603      
  Fe        26000        26000        0.080000      0.081498      0.007307      
  Ni        28000        28000        0.750930      0.727867      0.065260      
  Cu        29000        29000        0.003250      0.002910      0.000261      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000980     6000    0.004642      6000    0.000416      
     14000   -0.003250     14000   0.006583      14000   0.000590      
     16000   -0.000100     16000   0.000177      16000   0.000016      
     24000   -0.155000     24000   0.169591      24000   0.015205      
     25055   -0.006500     25055   0.006731      25055   0.000603      
     26000   -0.080000     26000   0.081498      26000   0.007307      
     28000   -0.750930     28000   0.727867      28000   0.065260      
     29000   -0.003250     29000   0.002910      29000   0.000261      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000980     6000    0.004642      6000    0.000416      
     14000   -0.003250     14000   0.006583      14000   0.000590      
     16000   -0.000100     16000   0.000177      16000   0.000016      
     24000   -0.155000     24000   0.169591      24000   0.015205      
     25000   -0.006500     25000   0.006731      25000   0.000603      
     26000   -0.080000     26000   0.081498      26000   0.007307      
     28000   -0.750930     28000   0.727867      28000   0.065260      
     29000   -0.003250     29000   0.002910      29000   0.000261      
********************************************************************************

********************************************************************************
  155 : Inconel-625 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 7.799E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.007500      0.133302      0.010396      
  C         6000         6000         0.055200      0.082334      0.006421      
  N         7014         7000         0.000200      0.000256      0.000020      
  O         8016         8000         0.484900      0.542947      0.042344      
  Na        11023        11000        0.006300      0.004909      0.000383      
  Mg        12000        12000        0.012500      0.009213      0.000719      
  Al        13027        13000        0.021700      0.014408      0.001124      
  Si        14000        14000        0.155000      0.098869      0.007711      
  S         16000        16000        0.001900      0.001062      0.000083      
  K         19000        19000        0.013700      0.006277      0.000490      
  Ca        20000        20000        0.230000      0.102809      0.008018      
  Ti        22000        22000        0.001000      0.000374      0.000029      
  Fe        26000        26000        0.010100      0.003240      0.000253      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.007500     1001    0.133302      1001    0.010396      
     6000    -0.055200     6000    0.082334      6000    0.006421      
     7014    -0.000200     7014    0.000256      7014    0.000020      
     8016    -0.484900     8016    0.542947      8016    0.042344      
     11023   -0.006300     11023   0.004909      11023   0.000383      
     12000   -0.012500     12000   0.009213      12000   0.000719      
     13027   -0.021700     13027   0.014408      13027   0.001124      
     14000   -0.155000     14000   0.098869      14000   0.007711      
     16000   -0.001900     16000   0.001062      16000   0.000083      
     19000   -0.013700     19000   0.006277      19000   0.000490      
     20000   -0.230000     20000   0.102809      20000   0.008018      
     22000   -0.001000     22000   0.000374      22000   0.000029      
     26000   -0.010100     26000   0.003240      26000   0.000253      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.007500     1000    0.133302      1000    0.010396      
     6000    -0.055200     6000    0.082334      6000    0.006421      
     7000    -0.000200     7000    0.000256      7000    0.000020      
     8000    -0.484900     8000    0.542947      8000    0.042344      
     11000   -0.006300     11000   0.004909      11000   0.000383      
     12000   -0.012500     12000   0.009213      12000   0.000719      
     13000   -0.021700     13000   0.014408      13000   0.001124      
     14000   -0.155000     14000   0.098869      14000   0.007711      
     16000   -0.001900     16000   0.001062      16000   0.000083      
     19000   -0.013700     19000   0.006277      19000   0.000490      
     20000   -0.230000     20000   0.102809      20000   0.008018      
     22000   -0.001000     22000   0.000374      22000   0.000029      
     26000   -0.010100     26000   0.003240      26000   0.000253      
********************************************************************************

********************************************************************************
  156 : Inconel-718 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.190000 
  Total atom density (atoms/b-cm) = 8.547E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.000050      0.000267      0.000023      
  C         6000         6000         0.000730      0.003507      0.000300      
  Al        13027        13000        0.005000      0.010694      0.000914      
  Si        14000        14000        0.003180      0.006534      0.000558      
  P         15031        15000        0.000140      0.000261      0.000022      
  S         16000        16000        0.000140      0.000252      0.000022      
  Ti        22000        22000        0.009000      0.010850      0.000927      
  Cr        24000        24000        0.190000      0.210871      0.018023      
  Mn        25055        25000        0.003180      0.003340      0.000285      
  Fe        26000        26000        0.170000      0.175671      0.015014      
  Ni        28000        28000        0.525000      0.516184      0.044117      
  Co        27059        27000        0.009100      0.008911      0.000762      
  Cu        29000        29000        0.002730      0.002479      0.000212      
  Nb        41093        41000        0.051250      0.031833      0.002721      
  Mo        42000        42000        0.030500      0.018346      0.001568      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.000050     -       0.000267      -       0.000023      
     6000    -0.000730     6000    0.003507      6000    0.000300      
     13027   -0.005000     13027   0.010694      13027   0.000914      
     14000   -0.003180     14000   0.006534      14000   0.000558      
     15031   -0.000140     15031   0.000261      15031   0.000022      
     16000   -0.000140     16000   0.000252      16000   0.000022      
     22000   -0.009000     22000   0.010850      22000   0.000927      
     24000   -0.190000     24000   0.210871      24000   0.018023      
     25055   -0.003180     25055   0.003340      25055   0.000285      
     26000   -0.170000     26000   0.175671      26000   0.015014      
     28000   -0.525000     28000   0.516184      28000   0.044117      
     27059   -0.009100     27059   0.008911      27059   0.000762      
     29000   -0.002730     29000   0.002479      29000   0.000212      
     41093   -0.051250     41093   0.031833      41093   0.002721      
     42000   -0.030500     42000   0.018346      42000   0.001568      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.000050     5000    0.000267      5000    0.000023      
     6000    -0.000730     6000    0.003507      6000    0.000300      
     13000   -0.005000     13000   0.010694      13000   0.000914      
     14000   -0.003180     14000   0.006534      14000   0.000558      
     15000   -0.000140     15000   0.000261      15000   0.000022      
     16000   -0.000140     16000   0.000252      16000   0.000022      
     22000   -0.009000     22000   0.010850      22000   0.000927      
     24000   -0.190000     24000   0.210871      24000   0.018023      
     25000   -0.003180     25000   0.003340      25000   0.000285      
     26000   -0.170000     26000   0.175671      26000   0.015014      
     28000   -0.525000     28000   0.516184      28000   0.044117      
     27000   -0.009100     27000   0.008911      27000   0.000762      
     29000   -0.002730     29000   0.002479      29000   0.000212      
     41000   -0.051250     41000   0.031833      41000   0.002721      
     42000   -0.030500     42000   0.018346      42000   0.001568      
********************************************************************************

********************************************************************************
  157 : Indium 
  Source = PNNL-15870 Rev. 1 
  Formula = In 
  Molecular weight (g/mole) = 114.818 
  Density (g/cm3) = 7.310000 
  Total atom density (atoms/b-cm) = 3.834E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  In        49000        49000        1.000000      1.000000      0.038341      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     49000   -1.000000     49000   1.000000      49000   0.038341      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     49000   -1.000000     49000   1.000000      49000   0.038341      
********************************************************************************

********************************************************************************
  158 : Iron 
  Source = PNNL-15870 Rev. 1 
  Formula = Fe 
  Molecular weight (g/mole) = 55.845 
  Density (g/cm3) = 7.874000 
  Total atom density (atoms/b-cm) = 8.491E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Fe        26000        26000        1.000000      1.000000      0.084911      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     26000   -1.000000     26000   1.000000      26000   0.084911      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     26000   -1.000000     26000   1.000000      26000   0.084911      
********************************************************************************

********************************************************************************
  159 : Iron Boride (Fe2B) 
  Source = PNNL-15870 Rev. 1 
  Formula = Fe2B 
  Molecular weight (g/mole) = 122.501 
  Density (g/cm3) = 7.300000 
  Total atom density (atoms/b-cm) = 1.077E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.088252      0.333333      0.035887      
  Fe        26000        26000        0.911748      0.666667      0.071774      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.088252     -       0.333333      -       0.035887      
     26000   -0.911748     26000   0.666667      26000   0.071774      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.088252     5000    0.333333      5000    0.035887      
     26000   -0.911748     26000   0.666667      26000   0.071774      
********************************************************************************

********************************************************************************
  160 : Iron Boride (FeB) 
  Source = PNNL-15870 Rev. 1 
  Formula = FeB 
  Molecular weight (g/mole) = 66.656 
  Density (g/cm3) = 7.150000 
  Total atom density (atoms/b-cm) = 1.292E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.162174      0.499969      0.064591      
  Fe        26000        26000        0.837826      0.500031      0.064599      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.162174     -       0.499969      -       0.064591      
     26000   -0.837826     26000   0.500031      26000   0.064599      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.162174     5000    0.499969      5000    0.064591      
     26000   -0.837826     26000   0.500031      26000   0.064599      
********************************************************************************

********************************************************************************
  161 : Iron, Armco Ingot 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.866000 
  Total atom density (atoms/b-cm) = 8.511E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000120      0.000556      0.000047      
  O         8016         8000         0.001100      0.003826      0.000326      
  P         15031        15000        0.000050      0.000090      0.000008      
  S         16000        16000        0.000250      0.000434      0.000037      
  Mn        25055        25000        0.000170      0.000172      0.000015      
  Fe        26000        26000        0.998310      0.994921      0.084681      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000120     6000    0.000556      6000    0.000047      
     8016    -0.001100     8016    0.003826      8016    0.000326      
     15031   -0.000050     15031   0.000090      15031   0.000008      
     16000   -0.000250     16000   0.000434      16000   0.000037      
     25055   -0.000170     25055   0.000172      25055   0.000015      
     26000   -0.998310     26000   0.994921      26000   0.084681      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000120     6000    0.000556      6000    0.000047      
     8000    -0.001100     8000    0.003826      8000    0.000326      
     15000   -0.000050     15000   0.000090      15000   0.000008      
     16000   -0.000250     16000   0.000434      16000   0.000037      
     25000   -0.000170     25000   0.000172      25000   0.000015      
     26000   -0.998310     26000   0.994921      26000   0.084681      
********************************************************************************

********************************************************************************
  162 : Iron, Cast (gray) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.150000 
  Total atom density (atoms/b-cm) = 8.890E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.034000      0.137104      0.012189      
  Si        14000        14000        0.026000      0.044836      0.003986      
  P         15031        15000        0.003000      0.004691      0.000417      
  S         16000        16000        0.001000      0.001510      0.000134      
  Mn        25055        25000        0.006500      0.005730      0.000509      
  Fe        26000        26000        0.929500      0.806128      0.071667      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.034000     6000    0.137104      6000    0.012189      
     14000   -0.026000     14000   0.044836      14000   0.003986      
     15031   -0.003000     15031   0.004691      15031   0.000417      
     16000   -0.001000     16000   0.001510      16000   0.000134      
     25055   -0.006500     25055   0.005730      25055   0.000509      
     26000   -0.929500     26000   0.806128      26000   0.071667      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.034000     6000    0.137104      6000    0.012189      
     14000   -0.026000     14000   0.044836      14000   0.003986      
     15000   -0.003000     15000   0.004691      15000   0.000417      
     16000   -0.001000     16000   0.001510      16000   0.000134      
     25000   -0.006500     25000   0.005730      25000   0.000509      
     26000   -0.929500     26000   0.806128      26000   0.071667      
********************************************************************************

********************************************************************************
  163 : Iron, Wrought (Byers No.1) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.700000 
  Total atom density (atoms/b-cm) = 8.346E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000810      0.003746      0.000313      
  Si        14000        14000        0.001599      0.003164      0.000264      
  P         15031        15000        0.000628      0.001126      0.000094      
  S         16000        16000        0.000101      0.000175      0.000015      
  Mn        25055        25000        0.000152      0.000154      0.000013      
  Fe        26000        26000        0.996711      0.991636      0.082761      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000810     6000    0.003746      6000    0.000313      
     14000   -0.001599     14000   0.003164      14000   0.000264      
     15031   -0.000628     15031   0.001126      15031   0.000094      
     16000   -0.000101     16000   0.000175      16000   0.000015      
     25055   -0.000152     25055   0.000154      25055   0.000013      
     26000   -0.996711     26000   0.991636      26000   0.082761      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000810     6000    0.003746      6000    0.000313      
     14000   -0.001599     14000   0.003164      14000   0.000264      
     15000   -0.000628     15000   0.001126      15000   0.000094      
     16000   -0.000101     16000   0.000175      16000   0.000015      
     25000   -0.000152     25000   0.000154      25000   0.000013      
     26000   -0.996711     26000   0.991636      26000   0.082761      
********************************************************************************

********************************************************************************
  164 : Kaowool 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.096000 
  Total atom density (atoms/b-cm) = 2.841E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.000248      0.000468      0.000001      
  O         8016         8000         0.500064      0.636102      0.001807      
  Al        13027        13000        0.238163      0.179644      0.000510      
  Si        14000        14000        0.243627      0.176542      0.000501      
  Ca        20000        20000        0.000715      0.000363      0.000001      
  Ti        22000        22000        0.010189      0.004332      0.000012      
  Fe        26000        26000        0.006994      0.002549      0.000007      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.000248     -       0.000468      -       0.000001      
     8016    -0.500064     8016    0.636102      8016    0.001807      
     13027   -0.238163     13027   0.179644      13027   0.000510      
     14000   -0.243627     14000   0.176542      14000   0.000501      
     20000   -0.000715     20000   0.000363      20000   0.000001      
     22000   -0.010189     22000   0.004332      22000   0.000012      
     26000   -0.006994     26000   0.002549      26000   0.000007      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.000248     5000    0.000468      5000    0.000001      
     8000    -0.500064     8000    0.636102      8000    0.001807      
     13000   -0.238163     13000   0.179644      13000   0.000510      
     14000   -0.243627     14000   0.176542      14000   0.000501      
     20000   -0.000715     20000   0.000363      20000   0.000001      
     22000   -0.010189     22000   0.004332      22000   0.000012      
     26000   -0.006994     26000   0.002549      26000   0.000007      
********************************************************************************

********************************************************************************
  165 : Kapton Polyimide Film 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.420000 
  Total atom density (atoms/b-cm) = 8.723E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.026362      0.256399      0.022366      
  C         6000         6000         0.691133      0.564114      0.049208      
  N         7014         7000         0.073270      0.051282      0.004473      
  O         8016         8000         0.209235      0.128205      0.011183      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.026362     1001    0.256399      1001    0.022366      
     6000    -0.691133     6000    0.564114      6000    0.049208      
     7014    -0.073270     7014    0.051282      7014    0.004473      
     8016    -0.209235     8016    0.128205      8016    0.011183      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.026362     1000    0.256399      1000    0.022366      
     6000    -0.691133     6000    0.564114      6000    0.049208      
     7000    -0.073270     7000    0.051282      7000    0.004473      
     8000    -0.209235     8000    0.128205      8000    0.011183      
********************************************************************************

********************************************************************************
  166 : Kennertium 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 16.800000 
  Total atom density (atoms/b-cm) = 8.122E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ni        28000        28000        0.090000      0.191007      0.015514      
  Cu        29000        29000        0.150000      0.294036      0.023882      
  W         74000        74000        0.760000      0.514957      0.041825      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     28000   -0.090000     28000   0.191007      28000   0.015514      
     29000   -0.150000     29000   0.294036      29000   0.023882      
     74000   -0.760000     74000   0.514957      74000   0.041825      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     28000   -0.090000     28000   0.191007      28000   0.015514      
     29000   -0.150000     29000   0.294036      29000   0.023882      
     74000   -0.760000     74000   0.514957      74000   0.041825      
********************************************************************************

********************************************************************************
  167 : Kernite 
  Source = PNNL-15870 Rev. 1 
  Formula = Na2B4O7-4(H2O) 
  Molecular weight (g/mole) = 273.28046 
  Density (g/cm3) = 1.950000 
  Total atom density (atoms/b-cm) = 1.074E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.029506      0.320000      0.034377      
  B         -            5000         0.158240      0.160000      0.017188      
  O         8016         8000         0.644003      0.440000      0.047268      
  Na        11023        11000        0.168250      0.080000      0.008594      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.029506     1001    0.320000      1001    0.034377      
     -       -0.158240     -       0.160000      -       0.017188      
     8016    -0.644003     8016    0.440000      8016    0.047268      
     11023   -0.168250     11023   0.080000      11023   0.008594      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.029506     1000    0.320000      1000    0.034377      
     5000    -0.158240     5000    0.160000      5000    0.017188      
     8000    -0.644003     8000    0.440000      8000    0.047268      
     11000   -0.168250     11000   0.080000      11000   0.008594      
********************************************************************************

********************************************************************************
  168 : Kerosene 
  Source = PNNL-15870 Rev. 1 
  Formula = C14H30 
  Molecular weight (g/mole) = 198.388 
  Density (g/cm3) = 0.819000 
  Total atom density (atoms/b-cm) = 1.128E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.160000      0.694164      0.078293      
  C         6000         6000         0.840000      0.305836      0.034494      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.160000     1001    0.694164      1001    0.078293      
     6000    -0.840000     6000    0.305836      6000    0.034494      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.160000     1000    0.694164      1000    0.078293      
     6000    -0.840000     6000    0.305836      6000    0.034494      
********************************************************************************

********************************************************************************
  169 : Krypton 
  Source = PNNL-15870 Rev. 1 
  Formula = Kr 
  Molecular weight (g/mole) = 83.798 
  Density (g/cm3) = 0.003478 
  Total atom density (atoms/b-cm) = 2.500E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Kr        -            36000        1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -1.000000     -       1.000000      -       0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     36000   -1.000000     36000   1.000000      36000   0.000025      
********************************************************************************

********************************************************************************
  170 : Kynar 
  Source = PNNL-15870 Rev. 1 
  Formula = H2C2F2 
  Molecular weight (g/mole) = 64.0340864 
  Density (g/cm3) = 1.790000 
  Total atom density (atoms/b-cm) = 1.010E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.031481      0.333333      0.033668      
  C         6000         6000         0.375135      0.333333      0.033668      
  F         9019         9000         0.593384      0.333333      0.033668      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.031481     1001    0.333333      1001    0.033668      
     6000    -0.375135     6000    0.333333      6000    0.033668      
     9019    -0.593384     9019    0.333333      9019    0.033668      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.031481     1000    0.333333      1000    0.033668      
     6000    -0.375135     6000    0.333333      6000    0.033668      
     9000    -0.593384     9000    0.333333      9000    0.033668      
********************************************************************************

********************************************************************************
  171 : Lead 
  Source = PNNL-15870 Rev. 1 
  Formula = Pb 
  Molecular weight (g/mole) = 207.2 
  Density (g/cm3) = 11.350000 
  Total atom density (atoms/b-cm) = 3.299E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pb        82000        82000        1.000000      1.000000      0.032988      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     82000   -1.000000     82000   1.000000      82000   0.032988      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     82000   -1.000000     82000   1.000000      82000   0.032988      
********************************************************************************

********************************************************************************
  172 : Lead Tungstate (PWO) 
  Source = PNNL-15870 Rev. 1 
  Formula = PbWO4 
  Molecular weight (g/mole) = 455.0376 
  Density (g/cm3) = 8.240000 
  Total atom density (atoms/b-cm) = 6.543E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.140642      0.666667      0.043621      
  W         74000        74000        0.404011      0.166667      0.010905      
  Pb        82000        82000        0.455347      0.166667      0.010905      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.140642     8016    0.666667      8016    0.043621      
     74000   -0.404011     74000   0.166667      74000   0.010905      
     82000   -0.455347     82000   0.166667      82000   0.010905      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.140642     8000    0.666667      8000    0.043621      
     74000   -0.404011     74000   0.166667      74000   0.010905      
     82000   -0.455347     82000   0.166667      82000   0.010905      
********************************************************************************

********************************************************************************
  173 : Lithium 
  Source = PNNL-15870 Rev. 1 
  Formula = Li 
  Molecular weight (g/mole) = 6.941 
  Density (g/cm3) = 0.534000 
  Total atom density (atoms/b-cm) = 4.633E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         1.000000      1.000000      0.046331      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -1.000000     -       1.000000      -       0.046331      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -1.000000     3000    1.000000      3000    0.046331      
********************************************************************************

********************************************************************************
  174 : Lithium Amide 
  Source = PNNL-15870 Rev. 1 
  Formula = LiNH2 
  Molecular weight (g/mole) = 22.96358 
  Density (g/cm3) = 1.178000 
  Total atom density (atoms/b-cm) = 1.236E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.087783      0.499991      0.061783      
  Li        -            3000         0.302262      0.250004      0.030893      
  N         7014         7000         0.609955      0.250005      0.030893      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.087783     1001    0.499991      1001    0.061783      
     -       -0.302262     -       0.250004      -       0.030893      
     7014    -0.609955     7014    0.250005      7014    0.030893      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.087783     1000    0.499991      1000    0.061783      
     3000    -0.302262     3000    0.250004      3000    0.030893      
     7000    -0.609955     7000    0.250005      7000    0.030893      
********************************************************************************

********************************************************************************
  175 : Lithium Fluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = LiF 
  Molecular weight (g/mole) = 25.9394032 
  Density (g/cm3) = 2.635000 
  Total atom density (atoms/b-cm) = 1.223E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.267585      0.500000      0.061175      
  F         9019         9000         0.732415      0.500000      0.061175      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.267585     -       0.500000      -       0.061175      
     9019    -0.732415     9019    0.500000      9019    0.061175      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.267585     3000    0.500000      3000    0.061175      
     9000    -0.732415     9000    0.500000      9000    0.061175      
********************************************************************************

********************************************************************************
  176 : Lithium Gadrium Borate (LGB) 
  Source = PNNL-15870 Rev. 1 
  Formula = Li6Gd(BO3)3 
  Molecular weight (g/mole) = 367.3741448 
  Density (g/cm3) = 3.500000 
  Total atom density (atoms/b-cm) = 1.090E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li-6      3006         3000         0.098240      0.315789      0.034424      
  B-10      5010         5000         0.081766      0.157895      0.017212      
  O         8016         8000         0.391956      0.473684      0.051636      
  Gd        64000        64000        0.428038      0.052632      0.005737      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3006    -0.098240     3006    0.315789      3006    0.034424      
     5010    -0.081766     5010    0.157895      5010    0.017212      
     8016    -0.391956     8016    0.473684      8016    0.051636      
     64000   -0.428038     64000   0.052632      64000   0.005737      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.098240     3000    0.315789      3000    0.034424      
     5000    -0.081766     5000    0.157895      5000    0.017212      
     8000    -0.391956     8000    0.473684      8000    0.051636      
     64000   -0.428038     64000   0.052632      64000   0.005737      
********************************************************************************

********************************************************************************
  177 : Lithium Hydride 
  Source = PNNL-15870 Rev. 1 
  Formula = LiH 
  Molecular weight (g/mole) = 7.94894 
  Density (g/cm3) = 0.820000 
  Total atom density (atoms/b-cm) = 1.242E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.126797      0.499989      0.062121      
  Li        -            3000         0.873203      0.500011      0.062124      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.126797     1001    0.499989      1001    0.062121      
     -       -0.873203     -       0.500011      -       0.062124      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.126797     1000    0.499989      1000    0.062121      
     3000    -0.873203     3000    0.500011      3000    0.062124      
********************************************************************************

********************************************************************************
  178 : Lithium Iodide (high density) 
  Source = PNNL-15870 Rev. 1 
  Formula = LiI 
  Molecular weight (g/mole) = 133.84547 
  Density (g/cm3) = 4.080000 
  Total atom density (atoms/b-cm) = 3.671E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.051858      0.499998      0.018357      
  I         53127        53000        0.948142      0.500002      0.018357      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.051858     -       0.499998      -       0.018357      
     53127   -0.948142     53127   0.500002      53127   0.018357      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.051858     3000    0.499998      3000    0.018357      
     53000   -0.948142     53000   0.500002      53000   0.018357      
********************************************************************************

********************************************************************************
  179 : Lithium Iodide (low density) 
  Source = PNNL-15870 Rev. 1 
  Formula = LiI 
  Molecular weight (g/mole) = 133.84547 
  Density (g/cm3) = 3.494000 
  Total atom density (atoms/b-cm) = 3.144E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.051858      0.499998      0.015721      
  I         53127        53000        0.948142      0.500002      0.015721      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.051858     -       0.499998      -       0.015721      
     53127   -0.948142     53127   0.500002      53127   0.015721      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.051858     3000    0.499998      3000    0.015721      
     53000   -0.948142     53000   0.500002      53000   0.015721      
********************************************************************************

********************************************************************************
  180 : Lithium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = Li2O 
  Molecular weight (g/mole) = 29.8814 
  Density (g/cm3) = 2.013000 
  Total atom density (atoms/b-cm) = 1.217E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.464570      0.666667      0.081138      
  O         8016         8000         0.535430      0.333333      0.040569      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.464570     -       0.666667      -       0.081138      
     8016    -0.535430     8016    0.333333      8016    0.040569      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.464570     3000    0.666667      3000    0.081138      
     8000    -0.535430     8000    0.333333      8000    0.040569      
********************************************************************************

********************************************************************************
  181 : Lithium Tetraborate 
  Source = PNNL-15870 Rev. 1 
  Formula = Li2B4O7 
  Molecular weight (g/mole) = 169.1218 
  Density (g/cm3) = 2.440000 
  Total atom density (atoms/b-cm) = 1.129E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Li        -            3000         0.082085      0.153851      0.017377      
  B         -            5000         0.255680      0.307673      0.034751      
  O         8016         8000         0.662235      0.538476      0.060820      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.082085     -       0.153851      -       0.017377      
     -       -0.255680     -       0.307673      -       0.034751      
     8016    -0.662235     8016    0.538476      8016    0.060820      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     3000    -0.082085     3000    0.153851      3000    0.017377      
     5000    -0.255680     5000    0.307673      5000    0.034751      
     8000    -0.662235     8000    0.538476      8000    0.060820      
********************************************************************************

********************************************************************************
  182 : Lucite 
  Source = PNNL-15870 Rev. 1 
  Formula = C5O2H8 
  Molecular weight (g/mole) = 100.11582 
  Density (g/cm3) = 1.190000 
  Total atom density (atoms/b-cm) = 1.074E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.080538      0.533320      0.057262      
  C         6000         6000         0.599848      0.333345      0.035791      
  O         8016         8000         0.319614      0.133335      0.014316      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.080538     1001    0.533320      1001    0.057262      
     6000    -0.599848     6000    0.333345      6000    0.035791      
     8016    -0.319614     8016    0.133335      8016    0.014316      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.080538     1000    0.533320      1000    0.057262      
     6000    -0.599848     6000    0.333345      6000    0.035791      
     8000    -0.319614     8000    0.133335      8000    0.014316      
********************************************************************************

********************************************************************************
  183 : Lutetium Aluminum Garnet (LuAG) 
  Source = PNNL-15870 Rev. 1 
  Formula = Al5Lu3O12 
  Molecular weight (g/mole) = 851.80149 
  Density (g/cm3) = 6.730000 
  Total atom density (atoms/b-cm) = 9.516E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.225396      0.600000      0.057096      
  Al        13027        13000        0.158379      0.250000      0.023790      
  Lu        -            71000        0.616225      0.150000      0.014274      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.225396     8016    0.600000      8016    0.057096      
     13027   -0.158379     13027   0.250000      13027   0.023790      
     -       -0.616225     -       0.150000      -       0.014274      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.225396     8000    0.600000      8000    0.057096      
     13000   -0.158379     13000   0.250000      13000   0.023790      
     71000   -0.616225     71000   0.150000      71000   0.014274      
********************************************************************************

********************************************************************************
  184 : Lutetium Orthoaluminate (LuAP) 
  Source = PNNL-15870 Rev. 1 
  Formula = LuAlO3 
  Molecular weight (g/mole) = 249.946738 
  Density (g/cm3) = 8.400000 
  Total atom density (atoms/b-cm) = 1.012E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.192034      0.600000      0.060716      
  Al        13027        13000        0.107949      0.200000      0.020239      
  Lu        -            71000        0.700017      0.200000      0.020239      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.192034     8016    0.600000      8016    0.060716      
     13027   -0.107949     13027   0.200000      13027   0.020239      
     -       -0.700017     -       0.200000      -       0.020239      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.192034     8000    0.600000      8000    0.060716      
     13000   -0.107949     13000   0.200000      13000   0.020239      
     71000   -0.700017     71000   0.200000      71000   0.020239      
********************************************************************************

********************************************************************************
  185 : Lutetium Oxyorthosilicate (LSO) 
  Source = PNNL-15870 Rev. 1 
  Formula = Lu2SiO5 
  Molecular weight (g/mole) = 458.0165 
  Density (g/cm3) = 7.400000 
  Total atom density (atoms/b-cm) = 7.784E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.174660      0.625000      0.048649      
  Si        14000        14000        0.061320      0.125000      0.009730      
  Lu        -            71000        0.764021      0.250000      0.019459      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.174660     8016    0.625000      8016    0.048649      
     14000   -0.061320     14000   0.125000      14000   0.009730      
     -       -0.764021     -       0.250000      -       0.019459      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.174660     8000    0.625000      8000    0.048649      
     14000   -0.061320     14000   0.125000      14000   0.009730      
     71000   -0.764021     71000   0.250000      71000   0.019459      
********************************************************************************

********************************************************************************
  186 : Lutetium Yttrium OxyorthoSilicate (LYSO) 
  Source = PNNL-15870 Rev. 1 
  Formula = Lu2Y2SiO5 
  Molecular weight (g/mole) = 635.8282 
  Density (g/cm3) = 7.300000 
  Total atom density (atoms/b-cm) = 6.914E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.125815      0.500000      0.034570      
  Si        14000        14000        0.044172      0.100000      0.006914      
  Y         39089        39000        0.279654      0.200000      0.013828      
  Lu        -            71000        0.550359      0.200000      0.013828      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.125815     8016    0.500000      8016    0.034570      
     14000   -0.044172     14000   0.100000      14000   0.006914      
     39089   -0.279654     39089   0.200000      39089   0.013828      
     -       -0.550359     -       0.200000      -       0.013828      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.125815     8000    0.500000      8000    0.034570      
     14000   -0.044172     14000   0.100000      14000   0.006914      
     39000   -0.279654     39000   0.200000      39000   0.013828      
     71000   -0.550359     71000   0.200000      71000   0.013828      
********************************************************************************

********************************************************************************
  187 : Magnesium 
  Source = PNNL-15870 Rev. 1 
  Formula = Mg 
  Molecular weight (g/mole) = 24.305 
  Density (g/cm3) = 1.740000 
  Total atom density (atoms/b-cm) = 4.311E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mg        12000        12000        1.000000      1.000000      0.043113      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -1.000000     12000   1.000000      12000   0.043113      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     12000   -1.000000     12000   1.000000      12000   0.043113      
********************************************************************************

********************************************************************************
  188 : Magnesium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = MgO 
  Molecular weight (g/mole) = 40.3044 
  Density (g/cm3) = 3.580000 
  Total atom density (atoms/b-cm) = 1.070E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.396964      0.500000      0.053491      
  Mg        12000        12000        0.603036      0.500000      0.053491      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.396964     8016    0.500000      8016    0.053491      
     12000   -0.603036     12000   0.500000      12000   0.053491      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.396964     8000    0.500000      8000    0.053491      
     12000   -0.603036     12000   0.500000      12000   0.053491      
********************************************************************************

********************************************************************************
  189 : Magnesium Tetraborate 
  Source = PNNL-15870 Rev. 1 
  Formula = MgB4O7 
  Molecular weight (g/mole) = 179.5448 
  Density (g/cm3) = 2.530000 
  Total atom density (atoms/b-cm) = 1.018E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.240837      0.333313      0.033941      
  O         8016         8000         0.623790      0.583351      0.059403      
  Mg        12000        12000        0.135373      0.083336      0.008486      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.240837     -       0.333313      -       0.033941      
     8016    -0.623790     8016    0.583351      8016    0.059403      
     12000   -0.135373     12000   0.083336      12000   0.008486      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.240837     5000    0.333313      5000    0.033941      
     8000    -0.623790     8000    0.583351      8000    0.059403      
     12000   -0.135373     12000   0.083336      12000   0.008486      
********************************************************************************

********************************************************************************
  190 : Masonite 
  Source = PNNL-15870 Rev. 1 
  Formula = C6H10O5 
  Molecular weight (g/mole) = 162.1406 
  Density (g/cm3) = 1.300000 
  Total atom density (atoms/b-cm) = 1.014E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.062165      0.476190      0.048284      
  C         6000         6000         0.444455      0.285714      0.028970      
  O         8016         8000         0.493380      0.238095      0.024142      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.062165     1001    0.476190      1001    0.048284      
     6000    -0.444455     6000    0.285714      6000    0.028970      
     8016    -0.493380     8016    0.238095      8016    0.024142      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.062165     1000    0.476190      1000    0.048284      
     6000    -0.444455     6000    0.285714      6000    0.028970      
     8000    -0.493380     8000    0.238095      8000    0.024142      
********************************************************************************

********************************************************************************
  191 : Melamine 
  Source = PNNL-15870 Rev. 1 
  Formula = C5H7N6 
  Molecular weight (g/mole) = 151.14928 
  Density (g/cm3) = 1.350000 
  Total atom density (atoms/b-cm) = 9.682E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.046680      0.388889      0.037651      
  C         6000         6000         0.397313      0.277778      0.026894      
  N         7014         7000         0.556008      0.333333      0.032272      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.046680     1001    0.388889      1001    0.037651      
     6000    -0.397313     6000    0.277778      6000    0.026894      
     7014    -0.556008     7014    0.333333      7014    0.032272      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.046680     1000    0.388889      1000    0.037651      
     6000    -0.397313     6000    0.277778      6000    0.026894      
     7000    -0.556008     7000    0.333333      7000    0.032272      
********************************************************************************

********************************************************************************
  192 : Mercury 
  Source = PNNL-15870 Rev. 1 
  Formula = Hg 
  Molecular weight (g/mole) = 200.59 
  Density (g/cm3) = 13.546000 
  Total atom density (atoms/b-cm) = 4.067E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Hg        80000        80000        1.000000      1.000000      0.040668      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     80000   -1.000000     80000   1.000000      80000   0.040668      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     80000   -1.000000     80000   1.000000      80000   0.040668      
********************************************************************************

********************************************************************************
  193 : Mercury Iodide 
  Source = PNNL-15870 Rev. 1 
  Formula = HgI2 
  Molecular weight (g/mole) = 454.39894 
  Density (g/cm3) = 6.360000 
  Total atom density (atoms/b-cm) = 2.529E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  I         53127        53000        0.558560      0.666667      0.016858      
  Hg        80000        80000        0.441440      0.333333      0.008429      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53127   -0.558560     53127   0.666667      53127   0.016858      
     80000   -0.441440     80000   0.333333      80000   0.008429      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53000   -0.558560     53000   0.666667      53000   0.016858      
     80000   -0.441440     80000   0.333333      80000   0.008429      
********************************************************************************

********************************************************************************
  194 : Methane 
  Source = PNNL-15870 Rev. 1 
  Formula = CH4 
  Molecular weight (g/mole) = 16.04246 
  Density (g/cm3) = 0.000667 
  Total atom density (atoms/b-cm) = 1.252E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.251318      0.800000      0.000100      
  C         6000         6000         0.748682      0.200000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.251318     1001    0.800000      1001    0.000100      
     6000    -0.748682     6000    0.200000      6000    0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.251318     1000    0.800000      1000    0.000100      
     6000    -0.748682     6000    0.200000      6000    0.000025      
********************************************************************************

********************************************************************************
  195 : Methanol 
  Source = PNNL-15870 Rev. 1 
  Formula = CH4O 
  Molecular weight (g/mole) = 32.04186 
  Density (g/cm3) = 0.791400 
  Total atom density (atoms/b-cm) = 8.924E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.125822      0.666654      0.059493      
  C         6000         6000         0.374852      0.166675      0.014874      
  O         8016         8000         0.499326      0.166671      0.014874      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.125822     1001    0.666654      1001    0.059493      
     6000    -0.374852     6000    0.166675      6000    0.014874      
     8016    -0.499326     8016    0.166671      8016    0.014874      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.125822     1000    0.666654      1000    0.059493      
     6000    -0.374852     6000    0.166675      6000    0.014874      
     8000    -0.499326     8000    0.166671      8000    0.014874      
********************************************************************************

********************************************************************************
  196 : Methylene Chloride 
  Source = PNNL-15870 Rev. 1 
  Formula = CH2Cl2 
  Molecular weight (g/mole) = 84.93258 
  Density (g/cm3) = 1.326600 
  Total atom density (atoms/b-cm) = 4.703E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.023735      0.400000      0.018813      
  C         6000         6000         0.141415      0.200000      0.009406      
  Cl        17000        17000        0.834850      0.400000      0.018813      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.023735     1001    0.400000      1001    0.018813      
     6000    -0.141415     6000    0.200000      6000    0.009406      
     17000   -0.834850     17000   0.400000      17000   0.018813      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.023735     1000    0.400000      1000    0.018813      
     6000    -0.141415     6000    0.200000      6000    0.009406      
     17000   -0.834850     17000   0.400000      17000   0.018813      
********************************************************************************

********************************************************************************
  197 : Molybdenum 
  Source = PNNL-15870 Rev. 1 
  Formula = Mo 
  Molecular weight (g/mole) = 95.94 
  Density (g/cm3) = 10.220000 
  Total atom density (atoms/b-cm) = 6.415E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Mo        42000        42000        1.000000      1.000000      0.064151      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     42000   -1.000000     42000   1.000000      42000   0.064151      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     42000   -1.000000     42000   1.000000      42000   0.064151      
********************************************************************************

********************************************************************************
  198 : Monosodium Titanate, MST 
  Source = PNNL-15870 Rev. 1 
  Formula = NaTi2O5H 
  Molecular weight (g/mole) = 199.72871 
  Density (g/cm3) = 1.000000 
  Total atom density (atoms/b-cm) = 2.714E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005047      0.111111      0.003015      
  O         8016         8000         0.400528      0.555556      0.015076      
  Na        11023        11000        0.115105      0.111111      0.003015      
  Ti        22000        22000        0.479320      0.222222      0.006030      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005047     1001    0.111111      1001    0.003015      
     8016    -0.400528     8016    0.555556      8016    0.015076      
     11023   -0.115105     11023   0.111111      11023   0.003015      
     22000   -0.479320     22000   0.222222      22000   0.006030      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005047     1000    0.111111      1000    0.003015      
     8000    -0.400528     8000    0.555556      8000    0.015076      
     11000   -0.115105     11000   0.111111      11000   0.003015      
     22000   -0.479320     22000   0.222222      22000   0.006030      
********************************************************************************

********************************************************************************
  199 : Muscle Equivalent-Liquid, with sucrose 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.110000 
  Total atom density (atoms/b-cm) = 1.052E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.098234      0.619265      0.065148      
  C         6000         6000         0.156214      0.082642      0.008694      
  N         7014         7000         0.035451      0.016082      0.001692      
  O         8016         8000         0.710101      0.282011      0.029668      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.098234     1001    0.619265      1001    0.065148      
     6000    -0.156214     6000    0.082642      6000    0.008694      
     7014    -0.035451     7014    0.016082      7014    0.001692      
     8016    -0.710101     8016    0.282011      8016    0.029668      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.098234     1000    0.619265      1000    0.065148      
     6000    -0.156214     6000    0.082642      6000    0.008694      
     7000    -0.035451     7000    0.016082      7000    0.001692      
     8000    -0.710101     8000    0.282011      8000    0.029668      
********************************************************************************

********************************************************************************
  200 : Muscle Equivalent-Liquid, without sucrose 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.070000 
  Total atom density (atoms/b-cm) = 1.032E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101969      0.631883      0.065188      
  C         6000         6000         0.120058      0.062435      0.006441      
  N         7014         7000         0.035451      0.015809      0.001631      
  O         8016         8000         0.742522      0.289874      0.029905      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101969     1001    0.631883      1001    0.065188      
     6000    -0.120058     6000    0.062435      6000    0.006441      
     7014    -0.035451     7014    0.015809      7014    0.001631      
     8016    -0.742522     8016    0.289874      8016    0.029905      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101969     1000    0.631883      1000    0.065188      
     6000    -0.120058     6000    0.062435      6000    0.006441      
     7000    -0.035451     7000    0.015809      7000    0.001631      
     8000    -0.742522     8000    0.289874      8000    0.029905      
********************************************************************************

********************************************************************************
  201 : Muscle, Skeletal 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.040000 
  Total atom density (atoms/b-cm) = 9.911E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.100637      0.630932      0.062533      
  C         6000         6000         0.107830      0.056732      0.005623      
  N         7014         7000         0.027680      0.012488      0.001238      
  O         8016         8000         0.754773      0.298107      0.029546      
  Na        11023        11000        0.000750      0.000206      0.000020      
  Mg        12000        12000        0.000190      0.000049      0.000005      
  P         15031        15000        0.001800      0.000367      0.000036      
  S         16000        16000        0.002410      0.000475      0.000047      
  Cl        17000        17000        0.000790      0.000141      0.000014      
  K         19000        19000        0.003020      0.000488      0.000048      
  Ca        20000        20000        0.000030      0.000005      0.000000      
  Fe        26000        26000        0.000040      0.000005      0.000000      
  Zn        30000        30000        0.000050      0.000005      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.100637     1001    0.630932      1001    0.062533      
     6000    -0.107830     6000    0.056732      6000    0.005623      
     7014    -0.027680     7014    0.012488      7014    0.001238      
     8016    -0.754773     8016    0.298107      8016    0.029546      
     11023   -0.000750     11023   0.000206      11023   0.000020      
     12000   -0.000190     12000   0.000049      12000   0.000005      
     15031   -0.001800     15031   0.000367      15031   0.000036      
     16000   -0.002410     16000   0.000475      16000   0.000047      
     17000   -0.000790     17000   0.000141      17000   0.000014      
     19000   -0.003020     19000   0.000488      19000   0.000048      
     20000   -0.000030     20000   0.000005      20000   0.000000      
     26000   -0.000040     26000   0.000005      26000   0.000000      
     30000   -0.000050     30000   0.000005      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.100637     1000    0.630932      1000    0.062533      
     6000    -0.107830     6000    0.056732      6000    0.005623      
     7000    -0.027680     7000    0.012488      7000    0.001238      
     8000    -0.754773     8000    0.298107      8000    0.029546      
     11000   -0.000750     11000   0.000206      11000   0.000020      
     12000   -0.000190     12000   0.000049      12000   0.000005      
     15000   -0.001800     15000   0.000367      15000   0.000036      
     16000   -0.002410     16000   0.000475      16000   0.000047      
     17000   -0.000790     17000   0.000141      17000   0.000014      
     19000   -0.003020     19000   0.000488      19000   0.000048      
     20000   -0.000030     20000   0.000005      20000   0.000000      
     26000   -0.000040     26000   0.000005      26000   0.000000      
     30000   -0.000050     30000   0.000005      30000   0.000000      
********************************************************************************

********************************************************************************
  202 : Muscle, Striated 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.040000 
  Total atom density (atoms/b-cm) = 1.001E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101997      0.633101      0.063378      
  C         6000         6000         0.123000      0.064070      0.006414      
  N         7014         7000         0.035000      0.015633      0.001565      
  O         8016         8000         0.729003      0.285066      0.028537      
  Na        11023        11000        0.000800      0.000218      0.000022      
  Mg        12000        12000        0.000200      0.000051      0.000005      
  P         15031        15000        0.002000      0.000404      0.000040      
  S         16000        16000        0.005000      0.000976      0.000098      
  K         19000        19000        0.003000      0.000480      0.000048      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101997     1001    0.633101      1001    0.063378      
     6000    -0.123000     6000    0.064070      6000    0.006414      
     7014    -0.035000     7014    0.015633      7014    0.001565      
     8016    -0.729003     8016    0.285066      8016    0.028537      
     11023   -0.000800     11023   0.000218      11023   0.000022      
     12000   -0.000200     12000   0.000051      12000   0.000005      
     15031   -0.002000     15031   0.000404      15031   0.000040      
     16000   -0.005000     16000   0.000976      16000   0.000098      
     19000   -0.003000     19000   0.000480      19000   0.000048      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101997     1000    0.633101      1000    0.063378      
     6000    -0.123000     6000    0.064070      6000    0.006414      
     7000    -0.035000     7000    0.015633      7000    0.001565      
     8000    -0.729003     8000    0.285066      8000    0.028537      
     11000   -0.000800     11000   0.000218      11000   0.000022      
     12000   -0.000200     12000   0.000051      12000   0.000005      
     15000   -0.002000     15000   0.000404      15000   0.000040      
     16000   -0.005000     16000   0.000976      16000   0.000098      
     19000   -0.003000     19000   0.000480      19000   0.000048      
********************************************************************************

********************************************************************************
  203 : Neon 
  Source = PNNL-15870 Rev. 1 
  Formula = Ne 
  Molecular weight (g/mole) = 20.1797 
  Density (g/cm3) = 0.000839 
  Total atom density (atoms/b-cm) = 2.502E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ne        10020        10000        1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     10020   -1.000000     10020   1.000000      10020   0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     10000   -1.000000     10000   1.000000      10000   0.000025      
********************************************************************************

********************************************************************************
  204 : Nickel 
  Source = PNNL-15870 Rev. 1 
  Formula = Ni 
  Molecular weight (g/mole) = 58.6934 
  Density (g/cm3) = 8.902000 
  Total atom density (atoms/b-cm) = 9.134E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ni        28000        28000        1.000000      1.000000      0.091338      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     28000   -1.000000     28000   1.000000      28000   0.091338      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     28000   -1.000000     28000   1.000000      28000   0.091338      
********************************************************************************

********************************************************************************
  205 : Niobium 
  Source = PNNL-15870 Rev. 1 
  Formula = Nb 
  Molecular weight (g/mole) = 92.90638 
  Density (g/cm3) = 8.570000 
  Total atom density (atoms/b-cm) = 5.555E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Nb        41093        41000        1.000000      1.000000      0.055550      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     41093   -1.000000     41093   1.000000      41093   0.055550      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     41000   -1.000000     41000   1.000000      41000   0.055550      
********************************************************************************

********************************************************************************
  206 : Nitrogen 
  Source = PNNL-15870 Rev. 1 
  Formula = N2 
  Molecular weight (g/mole) = 28.0134 
  Density (g/cm3) = 0.001165 
  Total atom density (atoms/b-cm) = 5.010E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         1.000000      1.000000      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -1.000000     7014    1.000000      7014    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -1.000000     7000    1.000000      7000    0.000050      
********************************************************************************

********************************************************************************
  207 : Nylon, Dupont ELVAmide 8062 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.080000 
  Total atom density (atoms/b-cm) = 1.126E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.103509      0.593363      0.066791      
  C         6000         6000         0.648416      0.311934      0.035112      
  N         7014         7000         0.099536      0.041060      0.004622      
  O         8016         8000         0.148539      0.053643      0.006038      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.103509     1001    0.593363      1001    0.066791      
     6000    -0.648416     6000    0.311934      6000    0.035112      
     7014    -0.099536     7014    0.041060      7014    0.004622      
     8016    -0.148539     8016    0.053643      8016    0.006038      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.103509     1000    0.593363      1000    0.066791      
     6000    -0.648416     6000    0.311934      6000    0.035112      
     7000    -0.099536     7000    0.041060      7000    0.004622      
     8000    -0.148539     8000    0.053643      8000    0.006038      
********************************************************************************

********************************************************************************
  208 : Nylon, Type 11 (Rilsan) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.425000 
  Total atom density (atoms/b-cm) = 1.592E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.115476      0.617633      0.098316      
  C         6000         6000         0.720819      0.323542      0.051502      
  N         7014         7000         0.076417      0.029412      0.004682      
  O         8016         8000         0.087289      0.029412      0.004682      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.115476     1001    0.617633      1001    0.098316      
     6000    -0.720819     6000    0.323542      6000    0.051502      
     7014    -0.076417     7014    0.029412      7014    0.004682      
     8016    -0.087289     8016    0.029412      8016    0.004682      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.115476     1000    0.617633      1000    0.098316      
     6000    -0.720819     6000    0.323542      6000    0.051502      
     7000    -0.076417     7000    0.029412      7000    0.004682      
     8000    -0.087289     8000    0.029412      8000    0.004682      
********************************************************************************

********************************************************************************
  209 : Nylon, Type 6 and Type 6/6 
  Source = PNNL-15870 Rev. 1 
  Formula = C12H22N2O2 
  Molecular weight (g/mole) = 226.31528 
  Density (g/cm3) = 1.140000 
  Total atom density (atoms/b-cm) = 1.153E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.097976      0.578932      0.066733      
  C         6000         6000         0.636856      0.315803      0.036402      
  N         7014         7000         0.123779      0.052632      0.006067      
  O         8016         8000         0.141389      0.052633      0.006067      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.097976     1001    0.578932      1001    0.066733      
     6000    -0.636856     6000    0.315803      6000    0.036402      
     7014    -0.123779     7014    0.052632      7014    0.006067      
     8016    -0.141389     8016    0.052633      8016    0.006067      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.097976     1000    0.578932      1000    0.066733      
     6000    -0.636856     6000    0.315803      6000    0.036402      
     7000    -0.123779     7000    0.052632      7000    0.006067      
     8000    -0.141389     8000    0.052633      8000    0.006067      
********************************************************************************

********************************************************************************
  210 : Nylon, Type 6/10 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.140000 
  Total atom density (atoms/b-cm) = 1.215E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.107062      0.599986      0.072922      
  C         6000         6000         0.680449      0.320013      0.038894      
  N         7014         7000         0.099189      0.040001      0.004862      
  O         8016         8000         0.113300      0.040001      0.004862      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.107062     1001    0.599986      1001    0.072922      
     6000    -0.680449     6000    0.320013      6000    0.038894      
     7014    -0.099189     7014    0.040001      7014    0.004862      
     8016    -0.113300     8016    0.040001      8016    0.004862      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.107062     1000    0.599986      1000    0.072922      
     6000    -0.680449     6000    0.320013      6000    0.038894      
     7000    -0.099189     7000    0.040001      7000    0.004862      
     8000    -0.113300     8000    0.040001      8000    0.004862      
********************************************************************************

********************************************************************************
  211 : Oil, Crude (Heavy, Cold Lake, Canada) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.970000 
  Total atom density (atoms/b-cm) = 1.024E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.104000      0.588884      0.060273      
  C         6000         6000         0.837000      0.397730      0.040708      
  N         7014         7000         0.004000      0.001630      0.000167      
  O         8016         8000         0.011000      0.003924      0.000402      
  S         16000        16000        0.044000      0.007832      0.000802      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.104000     1001    0.588884      1001    0.060273      
     6000    -0.837000     6000    0.397730      6000    0.040708      
     7014    -0.004000     7014    0.001630      7014    0.000167      
     8016    -0.011000     8016    0.003924      8016    0.000402      
     16000   -0.044000     16000   0.007832      16000   0.000802      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.104000     1000    0.588884      1000    0.060273      
     6000    -0.837000     6000    0.397730      6000    0.040708      
     7000    -0.004000     7000    0.001630      7000    0.000167      
     8000    -0.011000     8000    0.003924      8000    0.000402      
     16000   -0.044000     16000   0.007832      16000   0.000802      
********************************************************************************

********************************************************************************
  212 : Oil, Crude (Heavy, Mexican) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.975000 
  Total atom density (atoms/b-cm) = 1.031E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.104039      0.587752      0.060606      
  C         6000         6000         0.853733      0.404749      0.041736      
  S         16000        16000        0.042228      0.007499      0.000773      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.104039     1001    0.587752      1001    0.060606      
     6000    -0.853733     6000    0.404749      6000    0.041736      
     16000   -0.042228     16000   0.007499      16000   0.000773      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.104039     1000    0.587752      1000    0.060606      
     6000    -0.853733     6000    0.404749      6000    0.041736      
     16000   -0.042228     16000   0.007499      16000   0.000773      
********************************************************************************

********************************************************************************
  213 : Oil, Crude (Heavy, Qayarah, Iraq) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.970000 
  Total atom density (atoms/b-cm) = 1.002E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.102000      0.590046      0.059114      
  C         6000         6000         0.807000      0.391765      0.039249      
  N         7014         7000         0.007000      0.002914      0.000292      
  S         16000        16000        0.084000      0.015275      0.001530      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.102000     1001    0.590046      1001    0.059114      
     6000    -0.807000     6000    0.391765      6000    0.039249      
     7014    -0.007000     7014    0.002914      7014    0.000292      
     16000   -0.084000     16000   0.015275      16000   0.001530      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.102000     1000    0.590046      1000    0.059114      
     6000    -0.807000     6000    0.391765      6000    0.039249      
     7000    -0.007000     7000    0.002914      7000    0.000292      
     16000   -0.084000     16000   0.015275      16000   0.001530      
********************************************************************************

********************************************************************************
  214 : Oil, Crude (Light, Texas) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.875000 
  Total atom density (atoms/b-cm) = 1.024E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.123246      0.629388      0.064432      
  C         6000         6000         0.852204      0.365220      0.037388      
  N         7014         7000         0.007014      0.002578      0.000264      
  S         16000        16000        0.017535      0.002815      0.000288      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.123246     1001    0.629388      1001    0.064432      
     6000    -0.852204     6000    0.365220      6000    0.037388      
     7014    -0.007014     7014    0.002578      7014    0.000264      
     16000   -0.017535     16000   0.002815      16000   0.000288      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.123246     1000    0.629388      1000    0.064432      
     6000    -0.852204     6000    0.365220      6000    0.037388      
     7000    -0.007014     7000    0.002578      7000    0.000264      
     16000   -0.017535     16000   0.002815      16000   0.000288      
********************************************************************************

********************************************************************************
  215 : Oil, Fuel (Calif.) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.955000 
  Total atom density (atoms/b-cm) = 1.133E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.125878      0.633782      0.071824      
  C         6000         6000         0.862308      0.364349      0.041290      
  S         16000        16000        0.011814      0.001870      0.000212      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.125878     1001    0.633782      1001    0.071824      
     6000    -0.862308     6000    0.364349      6000    0.041290      
     16000   -0.011814     16000   0.001870      16000   0.000212      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.125878     1000    0.633782      1000    0.071824      
     6000    -0.862308     6000    0.364349      6000    0.041290      
     16000   -0.011814     16000   0.001870      16000   0.000212      
********************************************************************************

********************************************************************************
  216 : Oil, Hydraulic 
  Source = PNNL-15870 Rev. 1 
  Formula = C40H33O4Cl6P 
  Molecular weight (g/mole) = 821.379381 
  Density (g/cm3) = 0.871000 
  Total atom density (atoms/b-cm) = 5.364E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.040495      0.392857      0.021074      
  C         6000         6000         0.584904      0.476190      0.025544      
  O         8016         8000         0.077915      0.047619      0.002554      
  P         15031        15000        0.037709      0.011905      0.000639      
  Cl        17000        17000        0.258977      0.071429      0.003832      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.040495     1001    0.392857      1001    0.021074      
     6000    -0.584904     6000    0.476190      6000    0.025544      
     8016    -0.077915     8016    0.047619      8016    0.002554      
     15031   -0.037709     15031   0.011905      15031   0.000639      
     17000   -0.258977     17000   0.071429      17000   0.003832      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.040495     1000    0.392857      1000    0.021074      
     6000    -0.584904     6000    0.476190      6000    0.025544      
     8000    -0.077915     8000    0.047619      8000    0.002554      
     15000   -0.037709     15000   0.011905      15000   0.000639      
     17000   -0.258977     17000   0.071429      17000   0.003832      
********************************************************************************

********************************************************************************
  217 : Oil, Lard 
  Source = PNNL-15870 Rev. 1 
  Formula = C10H18O 
  Molecular weight (g/mole) = 154.24932 
  Density (g/cm3) = 0.915000 
  Total atom density (atoms/b-cm) = 1.036E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.117621      0.620690      0.064302      
  C         6000         6000         0.778655      0.344828      0.035723      
  O         8016         8000         0.103724      0.034483      0.003572      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.117621     1001    0.620690      1001    0.064302      
     6000    -0.778655     6000    0.344828      6000    0.035723      
     8016    -0.103724     8016    0.034483      8016    0.003572      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.117621     1000    0.620690      1000    0.064302      
     6000    -0.778655     6000    0.344828      6000    0.035723      
     8000    -0.103724     8000    0.034483      8000    0.003572      
********************************************************************************

********************************************************************************
  218 : Oxygen 
  Source = PNNL-15870 Rev. 1 
  Formula = O2 
  Molecular weight (g/mole) = 31.9988 
  Density (g/cm3) = 0.001332 
  Total atom density (atoms/b-cm) = 5.012E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         1.000000      1.000000      0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -1.000000     8016    1.000000      8016    0.000050      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -1.000000     8000    1.000000      8000    0.000050      
********************************************************************************

********************************************************************************
  219 : P-10 gas 
  Source = PNNL-15870 Rev. 1 
  Formula = 90% Ar, 10% CH4 
  Molecular weight (g/mole) = 37.557446 
  Density (g/cm3) = 0.001561 
  Total atom density (atoms/b-cm) = 3.505E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010735      0.285714      0.000010      
  C         6000         6000         0.031980      0.071429      0.000003      
  Ar        18000        18000        0.957286      0.642857      0.000023      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010735     1001    0.285714      1001    0.000010      
     6000    -0.031980     6000    0.071429      6000    0.000003      
     18000   -0.957286     18000   0.642857      18000   0.000023      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010735     1000    0.285714      1000    0.000010      
     6000    -0.031980     6000    0.071429      6000    0.000003      
     18000   -0.957286     18000   0.642857      18000   0.000023      
********************************************************************************

********************************************************************************
  220 : P-5 gas 
  Source = PNNL-15870 Rev. 1 
  Formula = 95% Ar, 5% CH4 
  Molecular weight (g/mole) = 38.752723 
  Density (g/cm3) = 0.001611 
  Total atom density (atoms/b-cm) = 3.004E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005202      0.166667      0.000005      
  C         6000         6000         0.015497      0.041667      0.000001      
  Ar        18000        18000        0.979302      0.791667      0.000024      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005202     1001    0.166667      1001    0.000005      
     6000    -0.015497     6000    0.041667      6000    0.000001      
     18000   -0.979302     18000   0.791667      18000   0.000024      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005202     1000    0.166667      1000    0.000005      
     6000    -0.015497     6000    0.041667      6000    0.000001      
     18000   -0.979302     18000   0.791667      18000   0.000024      
********************************************************************************

********************************************************************************
  221 : Palladium 
  Source = PNNL-15870 Rev. 1 
  Formula = Pd 
  Molecular weight (g/mole) = 106.42 
  Density (g/cm3) = 12.020000 
  Total atom density (atoms/b-cm) = 6.802E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pd        -            46000        1.000000      1.000000      0.068019      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -1.000000     -       1.000000      -       0.068019      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     46000   -1.000000     46000   1.000000      46000   0.068019      
********************************************************************************

********************************************************************************
  222 : Photographic Emulsion, Gel in 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.291400 
  Total atom density (atoms/b-cm) = 1.145E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.081180      0.546952      0.062636      
  C         6000         6000         0.416060      0.235246      0.026940      
  N         7014         7000         0.111240      0.053934      0.006176      
  O         8016         8000         0.380640      0.161564      0.018502      
  S         16000        16000        0.010880      0.002304      0.000264      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.081180     1001    0.546952      1001    0.062636      
     6000    -0.416060     6000    0.235246      6000    0.026940      
     7014    -0.111240     7014    0.053934      7014    0.006176      
     8016    -0.380640     8016    0.161564      8016    0.018502      
     16000   -0.010880     16000   0.002304      16000   0.000264      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.081180     1000    0.546952      1000    0.062636      
     6000    -0.416060     6000    0.235246      6000    0.026940      
     7000    -0.111240     7000    0.053934      7000    0.006176      
     8000    -0.380640     8000    0.161564      8000    0.018502      
     16000   -0.010880     16000   0.002304      16000   0.000264      
********************************************************************************

********************************************************************************
  223 : Photographic Emulsion, Kodak Type AA 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.200000 
  Total atom density (atoms/b-cm) = 9.105E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.030500      0.440293      0.040090      
  C         6000         6000         0.210700      0.255254      0.023242      
  N         7014         7000         0.072100      0.074899      0.006820      
  O         8016         8000         0.163200      0.148420      0.013514      
  Br        -            35000        0.222800      0.040572      0.003694      
  Ag        47000        47000        0.300700      0.040562      0.003693      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.030500     1001    0.440293      1001    0.040090      
     6000    -0.210700     6000    0.255254      6000    0.023242      
     7014    -0.072100     7014    0.074899      7014    0.006820      
     8016    -0.163200     8016    0.148420      8016    0.013514      
     -       -0.222800     -       0.040572      -       0.003694      
     47000   -0.300700     47000   0.040562      47000   0.003693      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.030500     1000    0.440293      1000    0.040090      
     6000    -0.210700     6000    0.255254      6000    0.023242      
     7000    -0.072100     7000    0.074899      7000    0.006820      
     8000    -0.163200     8000    0.148420      8000    0.013514      
     35000   -0.222800     35000   0.040572      35000   0.003694      
     47000   -0.300700     47000   0.040562      47000   0.003693      
********************************************************************************

********************************************************************************
  224 : Photographic Emulsion, Standard Nuclear 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.815000 
  Total atom density (atoms/b-cm) = 7.895E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.014100      0.407082      0.032139      
  C         6000         6000         0.072261      0.175079      0.013822      
  N         7014         7000         0.019320      0.040139      0.003169      
  O         8016         8000         0.066101      0.120227      0.009492      
  S         16000        16000        0.001890      0.001715      0.000135      
  Br        -            35000        0.349104      0.127140      0.010038      
  Ag        47000        47000        0.474105      0.127902      0.010098      
  I         53127        53000        0.003120      0.000715      0.000056      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.014100     1001    0.407082      1001    0.032139      
     6000    -0.072261     6000    0.175079      6000    0.013822      
     7014    -0.019320     7014    0.040139      7014    0.003169      
     8016    -0.066101     8016    0.120227      8016    0.009492      
     16000   -0.001890     16000   0.001715      16000   0.000135      
     -       -0.349104     -       0.127140      -       0.010038      
     47000   -0.474105     47000   0.127902      47000   0.010098      
     53127   -0.003120     53127   0.000715      53127   0.000056      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.014100     1000    0.407082      1000    0.032139      
     6000    -0.072261     6000    0.175079      6000    0.013822      
     7000    -0.019320     7000    0.040139      7000    0.003169      
     8000    -0.066101     8000    0.120227      8000    0.009492      
     16000   -0.001890     16000   0.001715      16000   0.000135      
     35000   -0.349104     35000   0.127140      35000   0.010038      
     47000   -0.474105     47000   0.127902      47000   0.010098      
     53000   -0.003120     53000   0.000715      53000   0.000056      
********************************************************************************

********************************************************************************
  225 : Platinum 
  Source = PNNL-15870 Rev. 1 
  Formula = Pt 
  Molecular weight (g/mole) = 195.078 
  Density (g/cm3) = 21.450000 
  Total atom density (atoms/b-cm) = 6.622E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pt        78000        78000        1.000000      1.000000      0.066217      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     78000   -1.000000     78000   1.000000      78000   0.066217      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     78000   -1.000000     78000   1.000000      78000   0.066217      
********************************************************************************

********************************************************************************
  226 : Plutonium Bromide 
  Source = PNNL-15870 Rev. 1 
  Formula = PuBr3 
  Molecular weight (g/mole) = 478.8329578603 
  Density (g/cm3) = 6.750000 
  Total atom density (atoms/b-cm) = 3.396E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Br        -            35000        0.500617      0.750000      0.025468      
  Pu-238    94238        94000        0.000250      0.000126      0.000004      
  Pu-239    94239        94000        0.466923      0.233817      0.007940      
  Pu-240    94240        94000        0.029963      0.014942      0.000507      
  Pu-241    94241        94000        0.001998      0.000992      0.000034      
  Pu-242    94242        94000        0.000250      0.000123      0.000004      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.500617     -       0.750000      -       0.025468      
     94238   -0.000250     94238   0.000126      94238   0.000004      
     94239   -0.466923     94239   0.233817      94239   0.007940      
     94240   -0.029963     94240   0.014942      94240   0.000507      
     94241   -0.001998     94241   0.000992      94241   0.000034      
     94242   -0.000250     94242   0.000123      94242   0.000004      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     35000   -0.500617     35000   0.750000      35000   0.025468      
     94000   -0.000250     94000   0.000126      94000   0.000004      
     94000   -0.466923     94000   0.233817      94000   0.007940      
     94000   -0.029963     94000   0.014942      94000   0.000507      
     94000   -0.001998     94000   0.000992      94000   0.000034      
     94000   -0.000250     94000   0.000123      94000   0.000004      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  227 : Plutonium Carbide 
  Source = PNNL-15870 Rev. 1 
  Formula = PuC 
  Molecular weight (g/mole) = 251.1316578603 
  Density (g/cm3) = 13.600000 
  Total atom density (atoms/b-cm) = 6.523E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.047826      0.500000      0.032613      
  Pu-238    94238        94000        0.000476      0.000251      0.000016      
  Pu-239    94239        94000        0.890282      0.467635      0.030502      
  Pu-240    94240        94000        0.057130      0.029883      0.001949      
  Pu-241    94241        94000        0.003809      0.001984      0.000129      
  Pu-242    94242        94000        0.000476      0.000247      0.000016      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.047826     6000    0.500000      6000    0.032613      
     94238   -0.000476     94238   0.000251      94238   0.000016      
     94239   -0.890282     94239   0.467635      94239   0.030502      
     94240   -0.057130     94240   0.029883      94240   0.001949      
     94241   -0.003809     94241   0.001984      94241   0.000129      
     94242   -0.000476     94242   0.000247      94242   0.000016      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.047826     6000    0.500000      6000    0.032613      
     94000   -0.000476     94000   0.000251      94000   0.000016      
     94000   -0.890282     94000   0.467635      94000   0.030502      
     94000   -0.057130     94000   0.029883      94000   0.001949      
     94000   -0.003809     94000   0.001984      94000   0.000129      
     94000   -0.000476     94000   0.000247      94000   0.000016      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  228 : Plutonium Chloride 
  Source = PNNL-15870 Rev. 1 
  Formula = PuCl3 
  Molecular weight (g/mole) = 345.4799578603 
  Density (g/cm3) = 5.710000 
  Total atom density (atoms/b-cm) = 3.981E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Cl        17000        17000        0.307859      0.750000      0.029860      
  Pu-238    94238        94000        0.000346      0.000126      0.000005      
  Pu-239    94239        94000        0.647152      0.233817      0.009309      
  Pu-240    94240        94000        0.041528      0.014942      0.000595      
  Pu-241    94241        94000        0.002769      0.000992      0.000039      
  Pu-242    94242        94000        0.000346      0.000123      0.000005      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     17000   -0.307859     17000   0.750000      17000   0.029860      
     94238   -0.000346     94238   0.000126      94238   0.000005      
     94239   -0.647152     94239   0.233817      94239   0.009309      
     94240   -0.041528     94240   0.014942      94240   0.000595      
     94241   -0.002769     94241   0.000992      94241   0.000039      
     94242   -0.000346     94242   0.000123      94242   0.000005      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     17000   -0.307859     17000   0.750000      17000   0.029860      
     94000   -0.000346     94000   0.000126      94000   0.000005      
     94000   -0.647152     94000   0.233817      94000   0.009309      
     94000   -0.041528     94000   0.014942      94000   0.000595      
     94000   -0.002769     94000   0.000992      94000   0.000039      
     94000   -0.000346     94000   0.000123      94000   0.000005      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  229 : Plutonium Dioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = PuO2 
  Molecular weight (g/mole) = 271.1197578603 
  Density (g/cm3) = 11.460000 
  Total atom density (atoms/b-cm) = 7.637E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.118025      0.666667      0.050910      
  Pu-238    94238        94000        0.000441      0.000167      0.000013      
  Pu-239    94239        94000        0.824647      0.311756      0.023807      
  Pu-240    94240        94000        0.052919      0.019922      0.001521      
  Pu-241    94241        94000        0.003528      0.001323      0.000101      
  Pu-242    94242        94000        0.000441      0.000165      0.000013      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.118025     8016    0.666667      8016    0.050910      
     94238   -0.000441     94238   0.000167      94238   0.000013      
     94239   -0.824647     94239   0.311756      94239   0.023807      
     94240   -0.052919     94240   0.019922      94240   0.001521      
     94241   -0.003528     94241   0.001323      94241   0.000101      
     94242   -0.000441     94242   0.000165      94242   0.000013      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.118025     8000    0.666667      8000    0.050910      
     94000   -0.000441     94000   0.000167      94000   0.000013      
     94000   -0.824647     94000   0.311756      94000   0.023807      
     94000   -0.052919     94000   0.019922      94000   0.001521      
     94000   -0.003528     94000   0.001323      94000   0.000101      
     94000   -0.000441     94000   0.000165      94000   0.000013      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  230 : Plutonium Flouride (PuF3) 
  Source = PNNL-15870 Rev. 1 
  Formula = PuF3 
  Molecular weight (g/mole) = 296.1161674603 
  Density (g/cm3) = 9.330000 
  Total atom density (atoms/b-cm) = 7.590E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.192476      0.750000      0.056924      
  Pu-238    94238        94000        0.000404      0.000126      0.000010      
  Pu-239    94239        94000        0.755035      0.233817      0.017746      
  Pu-240    94240        94000        0.048451      0.014942      0.001134      
  Pu-241    94241        94000        0.003230      0.000992      0.000075      
  Pu-242    94242        94000        0.000404      0.000123      0.000009      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.192476     9019    0.750000      9019    0.056924      
     94238   -0.000404     94238   0.000126      94238   0.000010      
     94239   -0.755035     94239   0.233817      94239   0.017746      
     94240   -0.048451     94240   0.014942      94240   0.001134      
     94241   -0.003230     94241   0.000992      94241   0.000075      
     94242   -0.000404     94242   0.000123      94242   0.000009      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.192476     9000    0.750000      9000    0.056924      
     94000   -0.000404     94000   0.000126      94000   0.000010      
     94000   -0.755035     94000   0.233817      94000   0.017746      
     94000   -0.048451     94000   0.014942      94000   0.001134      
     94000   -0.003230     94000   0.000992      94000   0.000075      
     94000   -0.000404     94000   0.000123      94000   0.000009      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  231 : Plutonium Flouride (PuF4) 
  Source = PNNL-15870 Rev. 1 
  Formula = PuF4 
  Molecular weight (g/mole) = 315.1145706603 
  Density (g/cm3) = 7.000000 
  Total atom density (atoms/b-cm) = 6.689E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.241162      0.800000      0.053511      
  Pu-238    94238        94000        0.000379      0.000100      0.000007      
  Pu-239    94239        94000        0.709514      0.187054      0.012512      
  Pu-240    94240        94000        0.045530      0.011953      0.000800      
  Pu-241    94241        94000        0.003035      0.000794      0.000053      
  Pu-242    94242        94000        0.000379      0.000099      0.000007      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.241162     9019    0.800000      9019    0.053511      
     94238   -0.000379     94238   0.000100      94238   0.000007      
     94239   -0.709514     94239   0.187054      94239   0.012512      
     94240   -0.045530     94240   0.011953      94240   0.000800      
     94241   -0.003035     94241   0.000794      94241   0.000053      
     94242   -0.000379     94242   0.000099      94242   0.000007      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.241162     9000    0.800000      9000    0.053511      
     94000   -0.000379     94000   0.000100      94000   0.000007      
     94000   -0.709514     94000   0.187054      94000   0.012512      
     94000   -0.045530     94000   0.011953      94000   0.000800      
     94000   -0.003035     94000   0.000794      94000   0.000053      
     94000   -0.000379     94000   0.000099      94000   0.000007      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  232 : Plutonium Flouride (PuF6) 
  Source = PNNL-15870 Rev. 1 
  Formula = PuF6 
  Molecular weight (g/mole) = 353.1113770603 
  Density (g/cm3) = 5.080000 
  Total atom density (atoms/b-cm) = 6.065E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.322817      0.857143      0.051982      
  Pu-238    94238        94000        0.000339      0.000072      0.000004      
  Pu-239    94239        94000        0.633166      0.133610      0.008103      
  Pu-240    94240        94000        0.040631      0.008538      0.000518      
  Pu-241    94241        94000        0.002709      0.000567      0.000034      
  Pu-242    94242        94000        0.000339      0.000071      0.000004      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.322817     9019    0.857143      9019    0.051982      
     94238   -0.000339     94238   0.000072      94238   0.000004      
     94239   -0.633166     94239   0.133610      94239   0.008103      
     94240   -0.040631     94240   0.008538      94240   0.000518      
     94241   -0.002709     94241   0.000567      94241   0.000034      
     94242   -0.000339     94242   0.000071      94242   0.000004      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.322817     9000    0.857143      9000    0.051982      
     94000   -0.000339     94000   0.000072      94000   0.000004      
     94000   -0.633166     94000   0.133610      94000   0.008103      
     94000   -0.040631     94000   0.008538      94000   0.000518      
     94000   -0.002709     94000   0.000567      94000   0.000034      
     94000   -0.000339     94000   0.000071      94000   0.000004      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  233 : Plutonium Iodide 
  Source = PNNL-15870 Rev. 1 
  Formula = PuI3 
  Molecular weight (g/mole) = 619.8343678603 
  Density (g/cm3) = 6.920000 
  Total atom density (atoms/b-cm) = 2.689E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  I         53127        53000        0.614218      0.750000      0.020170      
  Pu-238    94238        94000        0.000193      0.000126      0.000003      
  Pu-239    94239        94000        0.360706      0.233817      0.006288      
  Pu-240    94240        94000        0.023147      0.014942      0.000402      
  Pu-241    94241        94000        0.001543      0.000992      0.000027      
  Pu-242    94242        94000        0.000193      0.000123      0.000003      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53127   -0.614218     53127   0.750000      53127   0.020170      
     94238   -0.000193     94238   0.000126      94238   0.000003      
     94239   -0.360706     94239   0.233817      94239   0.006288      
     94240   -0.023147     94240   0.014942      94240   0.000402      
     94241   -0.001543     94241   0.000992      94241   0.000027      
     94242   -0.000193     94242   0.000123      94242   0.000003      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     53000   -0.614218     53000   0.750000      53000   0.020170      
     94000   -0.000193     94000   0.000126      94000   0.000003      
     94000   -0.360706     94000   0.233817      94000   0.006288      
     94000   -0.023147     94000   0.014942      94000   0.000402      
     94000   -0.001543     94000   0.000992      94000   0.000027      
     94000   -0.000193     94000   0.000123      94000   0.000003      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  234 : Plutonium Nitrate 
  Source = PNNL-15870 Rev. 1 
  Formula = Pu(NO3)4 
  Molecular weight (g/mole) = 487.1405578603 
  Density (g/cm3) = 2.447000 
  Total atom density (atoms/b-cm) = 5.143E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         0.115012      0.235294      0.012100      
  O         8016         8000         0.394122      0.705882      0.036300      
  Pu-238    94238        94000        0.000245      0.000030      0.000002      
  Pu-239    94239        94000        0.458960      0.055016      0.002829      
  Pu-240    94240        94000        0.029452      0.003516      0.000181      
  Pu-241    94241        94000        0.001963      0.000233      0.000012      
  Pu-242    94242        94000        0.000245      0.000029      0.000001      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -0.115012     7014    0.235294      7014    0.012100      
     8016    -0.394122     8016    0.705882      8016    0.036300      
     94238   -0.000245     94238   0.000030      94238   0.000002      
     94239   -0.458960     94239   0.055016      94239   0.002829      
     94240   -0.029452     94240   0.003516      94240   0.000181      
     94241   -0.001963     94241   0.000233      94241   0.000012      
     94242   -0.000245     94242   0.000029      94242   0.000001      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -0.115012     7000    0.235294      7000    0.012100      
     8000    -0.394122     8000    0.705882      8000    0.036300      
     94000   -0.000245     94000   0.000030      94000   0.000002      
     94000   -0.458960     94000   0.055016      94000   0.002829      
     94000   -0.029452     94000   0.003516      94000   0.000181      
     94000   -0.001963     94000   0.000233      94000   0.000012      
     94000   -0.000245     94000   0.000029      94000   0.000001      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  235 : Plutonium Nitride 
  Source = PNNL-15870 Rev. 1 
  Formula = PuN 
  Molecular weight (g/mole) = 253.1276578603 
  Density (g/cm3) = 14.250000 
  Total atom density (atoms/b-cm) = 6.780E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         0.055335      0.500000      0.033902      
  Pu-238    94238        94000        0.000472      0.000251      0.000017      
  Pu-239    94239        94000        0.883262      0.467635      0.031708      
  Pu-240    94240        94000        0.056680      0.029883      0.002026      
  Pu-241    94241        94000        0.003779      0.001984      0.000135      
  Pu-242    94242        94000        0.000472      0.000247      0.000017      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -0.055335     7014    0.500000      7014    0.033902      
     94238   -0.000472     94238   0.000251      94238   0.000017      
     94239   -0.883262     94239   0.467635      94239   0.031708      
     94240   -0.056680     94240   0.029883      94240   0.002026      
     94241   -0.003779     94241   0.001984      94241   0.000135      
     94242   -0.000472     94242   0.000247      94242   0.000017      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -0.055335     7000    0.500000      7000    0.033902      
     94000   -0.000472     94000   0.000251      94000   0.000017      
     94000   -0.883262     94000   0.467635      94000   0.031708      
     94000   -0.056680     94000   0.029883      94000   0.002026      
     94000   -0.003779     94000   0.001984      94000   0.000135      
     94000   -0.000472     94000   0.000247      94000   0.000017      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  236 : Plutonium Oxide (Pu2O3) 
  Source = PNNL-15870 Rev. 1 
  Formula = Pu2O3 
  Molecular weight (g/mole) = 526.2401157206 
  Density (g/cm3) = 10.500000 
  Total atom density (atoms/b-cm) = 6.008E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.091210      0.600000      0.036048      
  Pu-238    94238        94000        0.000454      0.000201      0.000012      
  Pu-239    94239        94000        0.849719      0.374108      0.022476      
  Pu-240    94240        94000        0.054527      0.023907      0.001436      
  Pu-241    94241        94000        0.003635      0.001587      0.000095      
  Pu-242    94242        94000        0.000454      0.000198      0.000012      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.091210     8016    0.600000      8016    0.036048      
     94238   -0.000454     94238   0.000201      94238   0.000012      
     94239   -0.849719     94239   0.374108      94239   0.022476      
     94240   -0.054527     94240   0.023907      94240   0.001436      
     94241   -0.003635     94241   0.001587      94241   0.000095      
     94242   -0.000454     94242   0.000198      94242   0.000012      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.091210     8000    0.600000      8000    0.036048      
     94000   -0.000454     94000   0.000201      94000   0.000012      
     94000   -0.849719     94000   0.374108      94000   0.022476      
     94000   -0.054527     94000   0.023907      94000   0.001436      
     94000   -0.003635     94000   0.001587      94000   0.000095      
     94000   -0.000454     94000   0.000198      94000   0.000012      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  237 : Plutonium Oxide (PuO) 
  Source = PNNL-15870 Rev. 1 
  Formula = PuO 
  Molecular weight (g/mole) = 255.1203578603 
  Density (g/cm3) = 14.000000 
  Total atom density (atoms/b-cm) = 6.609E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.062713      0.500000      0.033047      
  Pu-238    94238        94000        0.000469      0.000251      0.000017      
  Pu-239    94239        94000        0.876363      0.467635      0.030908      
  Pu-240    94240        94000        0.056237      0.029883      0.001975      
  Pu-241    94241        94000        0.003749      0.001984      0.000131      
  Pu-242    94242        94000        0.000469      0.000247      0.000016      
  Am-241    95241        95000        0.000000      0.000000      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.062713     8016    0.500000      8016    0.033047      
     94238   -0.000469     94238   0.000251      94238   0.000017      
     94239   -0.876363     94239   0.467635      94239   0.030908      
     94240   -0.056237     94240   0.029883      94240   0.001975      
     94241   -0.003749     94241   0.001984      94241   0.000131      
     94242   -0.000469     94242   0.000247      94242   0.000016      
     95241   0.000000      95241   0.000000      95241   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.062713     8000    0.500000      8000    0.033047      
     94000   -0.000469     94000   0.000251      94000   0.000017      
     94000   -0.876363     94000   0.467635      94000   0.030908      
     94000   -0.056237     94000   0.029883      94000   0.001975      
     94000   -0.003749     94000   0.001984      94000   0.000131      
     94000   -0.000469     94000   0.000247      94000   0.000016      
     95000   0.000000      95000   0.000000      95000   0.000000      
********************************************************************************

********************************************************************************
  238 : Plutonium, Aged WGPu (A: 4-7% Pu-240) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.997E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.000100      0.000100      0.000005      
  Pu-239    94239        94000        0.936296      0.936559      0.046796      
  Pu-240    94240        94000        0.059910      0.059677      0.002982      
  Pu-241    94241        94000        0.001997      0.001981      0.000099      
  Pu-242    94242        94000        0.000300      0.000296      0.000015      
  Am-241    95241        95000        0.001398      0.001387      0.000069      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.000100     94238   0.000100      94238   0.000005      
     94239   -0.936296     94239   0.936559      94239   0.046796      
     94240   -0.059910     94240   0.059677      94240   0.002982      
     94241   -0.001997     94241   0.001981      94241   0.000099      
     94242   -0.000300     94242   0.000296      94242   0.000015      
     95241   -0.001398     95241   0.001387      95241   0.000069      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.000100     94000   0.000100      94000   0.000005      
     94000   -0.936296     94000   0.936559      94000   0.046796      
     94000   -0.059910     94000   0.059677      94000   0.002982      
     94000   -0.001997     94000   0.001981      94000   0.000099      
     94000   -0.000300     94000   0.000296      94000   0.000015      
     95000   -0.001398     95000   0.001387      95000   0.000069      
********************************************************************************

********************************************************************************
  239 : Plutonium, Aged WGPu (B: 10-13% Pu-240) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.995E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.000892      0.000897      0.000045      
  Pu-239    94239        94000        0.861901      0.862470      0.043078      
  Pu-240    94240        94000        0.117081      0.116670      0.005827      
  Pu-241    94241        94000        0.009914      0.009838      0.000491      
  Pu-242    94242        94000        0.001685      0.001666      0.000083      
  Am-241    95241        95000        0.008526      0.008460      0.000423      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.000892     94238   0.000897      94238   0.000045      
     94239   -0.861901     94239   0.862470      94239   0.043078      
     94240   -0.117081     94240   0.116670      94240   0.005827      
     94241   -0.009914     94241   0.009838      94241   0.000491      
     94242   -0.001685     94242   0.001666      94242   0.000083      
     95241   -0.008526     95241   0.008460      95241   0.000423      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.000892     94000   0.000897      94000   0.000045      
     94000   -0.861901     94000   0.862470      94000   0.043078      
     94000   -0.117081     94000   0.116670      94000   0.005827      
     94000   -0.009914     94000   0.009838      94000   0.000491      
     94000   -0.001685     94000   0.001666      94000   0.000083      
     95000   -0.008526     95000   0.008460      95000   0.000423      
********************************************************************************

********************************************************************************
  240 : Plutonium, Aged WGPu (C: 16-19% Pu-240) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.993E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.002334      0.002347      0.000117      
  Pu-239    94239        94000        0.784554      0.785422      0.039212      
  Pu-240    94240        94000        0.165159      0.164652      0.008220      
  Pu-241    94241        94000        0.014006      0.013905      0.000694      
  Pu-242    94242        94000        0.006711      0.006635      0.000331      
  Am-241    95241        95000        0.027235      0.027038      0.001350      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.002334     94238   0.002347      94238   0.000117      
     94239   -0.784554     94239   0.785422      94239   0.039212      
     94240   -0.165159     94240   0.164652      94240   0.008220      
     94241   -0.014006     94241   0.013905      94241   0.000694      
     94242   -0.006711     94242   0.006635      94242   0.000331      
     95241   -0.027235     95241   0.027038      95241   0.001350      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.002334     94000   0.002347      94000   0.000117      
     94000   -0.784554     94000   0.785422      94000   0.039212      
     94000   -0.165159     94000   0.164652      94000   0.008220      
     94000   -0.014006     94000   0.013905      94000   0.000694      
     94000   -0.006711     94000   0.006635      94000   0.000331      
     95000   -0.027235     95000   0.027038      95000   0.001350      
********************************************************************************

********************************************************************************
  241 : Plutonium, DOE 3013 WGPu 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.997E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.000500      0.000502      0.000025      
  Pu-239    94239        94000        0.935000      0.935269      0.046732      
  Pu-240    94240        94000        0.060000      0.059767      0.002986      
  Pu-241    94241        94000        0.004000      0.003968      0.000198      
  Pu-242    94242        94000        0.000500      0.000494      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.000500     94238   0.000502      94238   0.000025      
     94239   -0.935000     94239   0.935269      94239   0.046732      
     94240   -0.060000     94240   0.059767      94240   0.002986      
     94241   -0.004000     94241   0.003968      94241   0.000198      
     94242   -0.000500     94242   0.000494      94242   0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.000500     94000   0.000502      94000   0.000025      
     94000   -0.935000     94000   0.935269      94000   0.046732      
     94000   -0.060000     94000   0.059767      94000   0.002986      
     94000   -0.004000     94000   0.003968      94000   0.000198      
     94000   -0.000500     94000   0.000494      94000   0.000025      
********************************************************************************

********************************************************************************
  242 : Plutonium, Fuel Grade 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.995E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.001000      0.001005      0.000050      
  Pu-239    94239        94000        0.861000      0.861564      0.043033      
  Pu-240    94240        94000        0.120000      0.119578      0.005973      
  Pu-241    94241        94000        0.016000      0.015877      0.000793      
  Pu-242    94242        94000        0.002000      0.001976      0.000099      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.001000     94238   0.001005      94238   0.000050      
     94239   -0.861000     94239   0.861564      94239   0.043033      
     94240   -0.120000     94240   0.119578      94240   0.005973      
     94241   -0.016000     94241   0.015877      94241   0.000793      
     94242   -0.002000     94242   0.001976      94242   0.000099      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.001000     94000   0.001005      94000   0.000050      
     94000   -0.861000     94000   0.861564      94000   0.043033      
     94000   -0.120000     94000   0.119578      94000   0.005973      
     94000   -0.016000     94000   0.015877      94000   0.000793      
     94000   -0.002000     94000   0.001976      94000   0.000099      
********************************************************************************

********************************************************************************
  243 : Plutonium, Power Grade 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.987E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.009901      0.009965      0.000497      
  Pu-239    94239        94000        0.623762      0.625153      0.031176      
  Pu-240    94240        94000        0.217822      0.217396      0.010841      
  Pu-241    94241        94000        0.118812      0.118086      0.005889      
  Pu-242    94242        94000        0.029703      0.029399      0.001466      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.009901     94238   0.009965      94238   0.000497      
     94239   -0.623762     94239   0.625153      94239   0.031176      
     94240   -0.217822     94240   0.217396      94240   0.010841      
     94241   -0.118812     94241   0.118086      94241   0.005889      
     94242   -0.029703     94242   0.029399      94242   0.001466      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.009901     94000   0.009965      94000   0.000497      
     94000   -0.623762     94000   0.625153      94000   0.031176      
     94000   -0.217822     94000   0.217396      94000   0.010841      
     94000   -0.118812     94000   0.118086      94000   0.005889      
     94000   -0.029703     94000   0.029399      94000   0.001466      
********************************************************************************

********************************************************************************
  244 : Plutonium, Shefelbine WGPu 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 19.840000 
  Total atom density (atoms/b-cm) = 4.997E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Pu-238    94238        94000        0.000300      0.000301      0.000015      
  Pu-239    94239        94000        0.939200      0.939451      0.046942      
  Pu-240    94240        94000        0.057000      0.056777      0.002837      
  Pu-241    94241        94000        0.003000      0.002976      0.000149      
  Pu-242    94242        94000        0.000300      0.000296      0.000015      
  Am-241    95241        95000        0.000200      0.000198      0.000010      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94238   -0.000300     94238   0.000301      94238   0.000015      
     94239   -0.939200     94239   0.939451      94239   0.046942      
     94240   -0.057000     94240   0.056777      94240   0.002837      
     94241   -0.003000     94241   0.002976      94241   0.000149      
     94242   -0.000300     94242   0.000296      94242   0.000015      
     95241   -0.000200     95241   0.000198      95241   0.000010      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     94000   -0.000300     94000   0.000301      94000   0.000015      
     94000   -0.939200     94000   0.939451      94000   0.046942      
     94000   -0.057000     94000   0.056777      94000   0.002837      
     94000   -0.003000     94000   0.002976      94000   0.000149      
     94000   -0.000300     94000   0.000296      94000   0.000015      
     95000   -0.000200     95000   0.000198      95000   0.000010      
********************************************************************************

********************************************************************************
  245 : Polycarbonate 
  Source = PNNL-15870 Rev. 1 
  Formula = C16H14O3 
  Molecular weight (g/mole) = 254.28056 
  Density (g/cm3) = 1.200000 
  Total atom density (atoms/b-cm) = 9.378E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.055491      0.424226      0.039785      
  C         6000         6000         0.755751      0.484864      0.045472      
  O         8016         8000         0.188758      0.090910      0.008526      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.055491     1001    0.424226      1001    0.039785      
     6000    -0.755751     6000    0.484864      6000    0.045472      
     8016    -0.188758     8016    0.090910      8016    0.008526      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.055491     1000    0.424226      1000    0.039785      
     6000    -0.755751     6000    0.484864      6000    0.045472      
     8000    -0.188758     8000    0.090910      8000    0.008526      
********************************************************************************

********************************************************************************
  246 : Polyethylene Terephthalate (PET) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.380000 
  Total atom density (atoms/b-cm) = 9.514E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.041960      0.363632      0.034596      
  C         6000         6000         0.625016      0.454552      0.043247      
  O         8016         8000         0.333024      0.181816      0.017298      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.041960     1001    0.363632      1001    0.034596      
     6000    -0.625016     6000    0.454552      6000    0.043247      
     8016    -0.333024     8016    0.181816      8016    0.017298      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.041960     1000    0.363632      1000    0.034596      
     6000    -0.625016     6000    0.454552      6000    0.043247      
     8000    -0.333024     8000    0.181816      8000    0.017298      
********************************************************************************

********************************************************************************
  247 : Polyethylene, Borated 
  Source = PNNL-15870 Rev. 1 
  Formula = B4C in C2H4 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.000000 
  Total atom density (atoms/b-cm) = 1.193E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.125355      0.627759      0.074896      
  B         -            5000         0.100000      0.046690      0.005570      
  C         6000         6000         0.774645      0.325552      0.038841      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.125355     1001    0.627759      1001    0.074896      
     -       -0.100000     -       0.046690      -       0.005570      
     6000    -0.774645     6000    0.325552      6000    0.038841      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.125355     1000    0.627759      1000    0.074896      
     5000    -0.100000     5000    0.046690      5000    0.005570      
     6000    -0.774645     6000    0.325552      6000    0.038841      
********************************************************************************

********************************************************************************
  248 : Polyethylene, Non-borated 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H4 
  Molecular weight (g/mole) = 28.05316 
  Density (g/cm3) = 0.930000 
  Total atom density (atoms/b-cm) = 1.198E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.143716      0.666662      0.079855      
  C         6000         6000         0.856284      0.333338      0.039929      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.143716     1001    0.666662      1001    0.079855      
     6000    -0.856284     6000    0.333338      6000    0.039929      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.143716     1000    0.666662      1000    0.079855      
     6000    -0.856284     6000    0.333338      6000    0.039929      
********************************************************************************

********************************************************************************
  249 : Polyisocyanurate (PIR) 
  Source = PNNL-15870 Rev. 1 
  Formula = C15H10N2O2 
  Molecular weight (g/mole) = 250.2521 
  Density (g/cm3) = 0.048200 
  Total atom density (atoms/b-cm) = 3.364E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.040277      0.344828      0.001160      
  C         6000         6000         0.719916      0.517241      0.001740      
  N         7014         7000         0.111941      0.068966      0.000232      
  O         8016         8000         0.127866      0.068966      0.000232      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.040277     1001    0.344828      1001    0.001160      
     6000    -0.719916     6000    0.517241      6000    0.001740      
     7014    -0.111941     7014    0.068966      7014    0.000232      
     8016    -0.127866     8016    0.068966      8016    0.000232      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.040277     1000    0.344828      1000    0.001160      
     6000    -0.719916     6000    0.517241      6000    0.001740      
     7000    -0.111941     7000    0.068966      7000    0.000232      
     8000    -0.127866     8000    0.068966      8000    0.000232      
********************************************************************************

********************************************************************************
  250 : Polypropylene (PP) 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H6 
  Molecular weight (g/mole) = 42.07974 
  Density (g/cm3) = 0.900000 
  Total atom density (atoms/b-cm) = 1.159E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.143711      0.666653      0.077277      
  C         6000         6000         0.856289      0.333347      0.038641      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.143711     1001    0.666653      1001    0.077277      
     6000    -0.856289     6000    0.333347      6000    0.038641      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.143711     1000    0.666653      1000    0.077277      
     6000    -0.856289     6000    0.333347      6000    0.038641      
********************************************************************************

********************************************************************************
  251 : Polystyrene (PS) 
  Source = PNNL-15870 Rev. 1 
  Formula = C8H8 
  Molecular weight (g/mole) = 104.14912 
  Density (g/cm3) = 1.060000 
  Total atom density (atoms/b-cm) = 9.807E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.077421      0.499994      0.049032      
  C         6000         6000         0.922579      0.500006      0.049033      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.077421     1001    0.499994      1001    0.049032      
     6000    -0.922579     6000    0.500006      6000    0.049033      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.077421     1000    0.499994      1000    0.049032      
     6000    -0.922579     6000    0.500006      6000    0.049033      
********************************************************************************

********************************************************************************
  252 : Polytetrafluoroethylene (PTFE) 
  Source = PNNL-15870 Rev. 1 
  Formula = C2F4 
  Molecular weight (g/mole) = 100.0150128 
  Density (g/cm3) = 2.250000 
  Total atom density (atoms/b-cm) = 8.129E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.240183      0.333339      0.027096      
  F         9019         9000         0.759818      0.666661      0.054191      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.240183     6000    0.333339      6000    0.027096      
     9019    -0.759818     9019    0.666661      9019    0.054191      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.240183     6000    0.333339      6000    0.027096      
     9000    -0.759818     9000    0.666661      9000    0.054191      
********************************************************************************

********************************************************************************
  253 : Polyurethane Foam (PUR) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.021000 
  Total atom density (atoms/b-cm) = 1.429E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.041000      0.360023      0.000514      
  C         6000         6000         0.544000      0.400878      0.000573      
  N         7014         7000         0.121000      0.076459      0.000109      
  O         8016         8000         0.294000      0.162639      0.000232      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.041000     1001    0.360023      1001    0.000514      
     6000    -0.544000     6000    0.400878      6000    0.000573      
     7014    -0.121000     7014    0.076459      7014    0.000109      
     8016    -0.294000     8016    0.162639      8016    0.000232      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.041000     1000    0.360023      1000    0.000514      
     6000    -0.544000     6000    0.400878      6000    0.000573      
     7000    -0.121000     7000    0.076459      7000    0.000109      
     8000    -0.294000     8000    0.162639      8000    0.000232      
********************************************************************************

********************************************************************************
  254 : Polyvinyl Acetate (PVA) 
  Source = PNNL-15870 Rev. 1 
  Formula = C4H6O2 
  Molecular weight (g/mole) = 86.08924 
  Density (g/cm3) = 1.190000 
  Total atom density (atoms/b-cm) = 9.989E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.070245      0.499986      0.049943      
  C         6000         6000         0.558066      0.333345      0.033298      
  O         8016         8000         0.371689      0.166668      0.016648      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.070245     1001    0.499986      1001    0.049943      
     6000    -0.558066     6000    0.333345      6000    0.033298      
     8016    -0.371689     8016    0.166668      8016    0.016648      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.070245     1000    0.499986      1000    0.049943      
     6000    -0.558066     6000    0.333345      6000    0.033298      
     8000    -0.371689     8000    0.166668      8000    0.016648      
********************************************************************************

********************************************************************************
  255 : Polyvinyl Chloride (PVC) 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H3Cl 
  Molecular weight (g/mole) = 62.49822 
  Density (g/cm3) = 1.406000 
  Total atom density (atoms/b-cm) = 8.129E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.048382      0.499995      0.040643      
  C         6000         6000         0.384361      0.333340      0.027096      
  Cl        17000        17000        0.567257      0.166665      0.013548      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.048382     1001    0.499995      1001    0.040643      
     6000    -0.384361     6000    0.333340      6000    0.027096      
     17000   -0.567257     17000   0.166665      17000   0.013548      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.048382     1000    0.499995      1000    0.040643      
     6000    -0.384361     6000    0.333340      6000    0.027096      
     17000   -0.567257     17000   0.166665      17000   0.013548      
********************************************************************************

********************************************************************************
  256 : Polyvinyl Toluene (PVT) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.032000 
  Total atom density (atoms/b-cm) = 9.976E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.085000      0.525382      0.052410      
  C         6000         6000         0.915000      0.474618      0.047346      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.085000     1001    0.525382      1001    0.052410      
     6000    -0.915000     6000    0.474618      6000    0.047346      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.085000     1000    0.525382      1000    0.052410      
     6000    -0.915000     6000    0.474618      6000    0.047346      
********************************************************************************

********************************************************************************
  257 : Polyvinylidene Chloride (PVDC) 
  Source = PNNL-15870 Rev. 1 
  Formula = C2H2Cl2 
  Molecular weight (g/mole) = 96.94328 
  Density (g/cm3) = 1.700000 
  Total atom density (atoms/b-cm) = 6.336E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.020793      0.333317      0.021119      
  C         6000         6000         0.247793      0.333346      0.021121      
  Cl        17000        17000        0.731413      0.333337      0.021121      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.020793     1001    0.333317      1001    0.021119      
     6000    -0.247793     6000    0.333346      6000    0.021121      
     17000   -0.731413     17000   0.333337      17000   0.021121      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.020793     1000    0.333317      1000    0.021119      
     6000    -0.247793     6000    0.333346      6000    0.021121      
     17000   -0.731413     17000   0.333337      17000   0.021121      
********************************************************************************

********************************************************************************
  258 : Potassium Aluminum Silicate 
  Source = PNNL-15870 Rev. 1 
  Formula = KAlSi3O8 
  Molecular weight (g/mole) = 278.331538 
  Density (g/cm3) = 1.100000 
  Total atom density (atoms/b-cm) = 3.094E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.459866      0.615385      0.019040      
  Al        13027        13000        0.096940      0.076923      0.002380      
  Si        14000        14000        0.302720      0.230769      0.007140      
  K         19000        19000        0.140474      0.076923      0.002380      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.459866     8016    0.615385      8016    0.019040      
     13027   -0.096940     13027   0.076923      13027   0.002380      
     14000   -0.302720     14000   0.230769      14000   0.007140      
     19000   -0.140474     19000   0.076923      19000   0.002380      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.459866     8000    0.615385      8000    0.019040      
     13000   -0.096940     13000   0.076923      13000   0.002380      
     14000   -0.302720     14000   0.230769      14000   0.007140      
     19000   -0.140474     19000   0.076923      19000   0.002380      
********************************************************************************

********************************************************************************
  259 : Potassium Iodide 
  Source = PNNL-15870 Rev. 1 
  Formula = KI 
  Molecular weight (g/mole) = 166.00277 
  Density (g/cm3) = 3.130000 
  Total atom density (atoms/b-cm) = 2.271E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  K         19000        19000        0.235528      0.500000      0.011355      
  I         53127        53000        0.764472      0.500000      0.011355      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     19000   -0.235528     19000   0.500000      19000   0.011355      
     53127   -0.764472     53127   0.500000      53127   0.011355      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     19000   -0.235528     19000   0.500000      19000   0.011355      
     53000   -0.764472     53000   0.500000      53000   0.011355      
********************************************************************************

********************************************************************************
  260 : Potassium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = K2O 
  Molecular weight (g/mole) = 94.196 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 4.450E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.169852      0.333333      0.014832      
  K         19000        19000        0.830148      0.666667      0.029664      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.169852     8016    0.333333      8016    0.014832      
     19000   -0.830148     19000   0.666667      19000   0.029664      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.169852     8000    0.333333      8000    0.014832      
     19000   -0.830148     19000   0.666667      19000   0.029664      
********************************************************************************

********************************************************************************
  261 : Propane (gas) 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H8 
  Molecular weight (g/mole) = 44.09562 
  Density (g/cm3) = 0.001879 
  Total atom density (atoms/b-cm) = 2.823E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.182855      0.727260      0.000205      
  C         6000         6000         0.817145      0.272740      0.000077      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.182855     1001    0.727260      1001    0.000205      
     6000    -0.817145     6000    0.272740      6000    0.000077      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.182855     1000    0.727260      1000    0.000205      
     6000    -0.817145     6000    0.272740      6000    0.000077      
********************************************************************************

********************************************************************************
  262 : Propane (liquid) 
  Source = PNNL-15870 Rev. 1 
  Formula = C3H8 
  Molecular weight (g/mole) = 44.09562 
  Density (g/cm3) = 0.430000 
  Total atom density (atoms/b-cm) = 6.460E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.182855      0.727260      0.046978      
  C         6000         6000         0.817145      0.272740      0.017618      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.182855     1001    0.727260      1001    0.046978      
     6000    -0.817145     6000    0.272740      6000    0.017618      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.182855     1000    0.727260      1000    0.046978      
     6000    -0.817145     6000    0.272740      6000    0.017618      
********************************************************************************

********************************************************************************
  263 : P-terphenyl 
  Source = PNNL-15870 Rev. 1 
  Formula = C14H10 
  Molecular weight (g/mole) = 178.2292 
  Density (g/cm3) = 1.230000 
  Total atom density (atoms/b-cm) = 9.974E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.056553      0.416667      0.041560      
  C         6000         6000         0.943447      0.583333      0.058184      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.056553     1001    0.416667      1001    0.041560      
     6000    -0.943447     6000    0.583333      6000    0.058184      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.056553     1000    0.416667      1000    0.041560      
     6000    -0.943447     6000    0.583333      6000    0.058184      
********************************************************************************

********************************************************************************
  264 : Radiochromic Dye Film, Nylon Base  (RDF: NB) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.080000 
  Total atom density (atoms/b-cm) = 1.117E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101996      0.589073      0.065815      
  C         6000         6000         0.654396      0.317171      0.035436      
  N         7014         7000         0.098915      0.041110      0.004593      
  O         8016         8000         0.144693      0.052646      0.005882      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101996     1001    0.589073      1001    0.065815      
     6000    -0.654396     6000    0.317171      6000    0.035436      
     7014    -0.098915     7014    0.041110      7014    0.004593      
     8016    -0.144693     8016    0.052646      8016    0.005882      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101996     1000    0.589073      1000    0.065815      
     6000    -0.654396     6000    0.317171      6000    0.035436      
     7000    -0.098915     7000    0.041110      7000    0.004593      
     8000    -0.144693     8000    0.052646      8000    0.005882      
********************************************************************************

********************************************************************************
  265 : Rock (Average of 5 types) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.662000 
  Total atom density (atoms/b-cm) = 8.028E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.001657      0.032837      0.002636      
  C         6000         6000         0.026906      0.044735      0.003591      
  O         8016         8000         0.488149      0.609276      0.048911      
  Na        11023        11000        0.012403      0.010774      0.000865      
  Mg        12000        12000        0.023146      0.019017      0.001527      
  Al        13027        13000        0.054264      0.040162      0.003224      
  Si        14000        14000        0.246249      0.175088      0.014056      
  S         16000        16000        0.000577      0.000359      0.000029      
  K         19000        19000        0.018147      0.009268      0.000744      
  Ca        20000        20000        0.089863      0.044775      0.003594      
  Ti        22000        22000        0.003621      0.001511      0.000121      
  Mn        25055        25000        0.000386      0.000140      0.000011      
  Fe        26000        26000        0.033377      0.011935      0.000958      
  Pb        82000        82000        0.001255      0.000121      0.000010      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.001657     1001    0.032837      1001    0.002636      
     6000    -0.026906     6000    0.044735      6000    0.003591      
     8016    -0.488149     8016    0.609276      8016    0.048911      
     11023   -0.012403     11023   0.010774      11023   0.000865      
     12000   -0.023146     12000   0.019017      12000   0.001527      
     13027   -0.054264     13027   0.040162      13027   0.003224      
     14000   -0.246249     14000   0.175088      14000   0.014056      
     16000   -0.000577     16000   0.000359      16000   0.000029      
     19000   -0.018147     19000   0.009268      19000   0.000744      
     20000   -0.089863     20000   0.044775      20000   0.003594      
     22000   -0.003621     22000   0.001511      22000   0.000121      
     25055   -0.000386     25055   0.000140      25055   0.000011      
     26000   -0.033377     26000   0.011935      26000   0.000958      
     82000   -0.001255     82000   0.000121      82000   0.000010      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.001657     1000    0.032837      1000    0.002636      
     6000    -0.026906     6000    0.044735      6000    0.003591      
     8000    -0.488149     8000    0.609276      8000    0.048911      
     11000   -0.012403     11000   0.010774      11000   0.000865      
     12000   -0.023146     12000   0.019017      12000   0.001527      
     13000   -0.054264     13000   0.040162      13000   0.003224      
     14000   -0.246249     14000   0.175088      14000   0.014056      
     16000   -0.000577     16000   0.000359      16000   0.000029      
     19000   -0.018147     19000   0.009268      19000   0.000744      
     20000   -0.089863     20000   0.044775      20000   0.003594      
     22000   -0.003621     22000   0.001511      22000   0.000121      
     25000   -0.000386     25000   0.000140      25000   0.000011      
     26000   -0.033377     26000   0.011935      26000   0.000958      
     82000   -0.001255     82000   0.000121      82000   0.000010      
********************************************************************************

********************************************************************************
  266 : Rock, Basalt 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 3.010000 
  Total atom density (atoms/b-cm) = 8.227E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.441115      0.607469      0.049976      
  Na        11023        11000        0.021700      0.020797      0.001711      
  Mg        12000        12000        0.041878      0.037964      0.003123      
  Al        13027        13000        0.083934      0.068541      0.005639      
  Si        14000        14000        0.232811      0.182640      0.015026      
  K         19000        19000        0.008920      0.005027      0.000414      
  Ca        20000        20000        0.068973      0.037918      0.003120      
  Ti        22000        22000        0.011151      0.005133      0.000422      
  Mn        25055        25000        0.001541      0.000618      0.000051      
  Fe        26000        26000        0.085141      0.033592      0.002764      
  Pb        82000        82000        0.002835      0.000302      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.441115     8016    0.607469      8016    0.049976      
     11023   -0.021700     11023   0.020797      11023   0.001711      
     12000   -0.041878     12000   0.037964      12000   0.003123      
     13027   -0.083934     13027   0.068541      13027   0.005639      
     14000   -0.232811     14000   0.182640      14000   0.015026      
     19000   -0.008920     19000   0.005027      19000   0.000414      
     20000   -0.068973     20000   0.037918      20000   0.003120      
     22000   -0.011151     22000   0.005133      22000   0.000422      
     25055   -0.001541     25055   0.000618      25055   0.000051      
     26000   -0.085141     26000   0.033592      26000   0.002764      
     82000   -0.002835     82000   0.000302      82000   0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.441115     8000    0.607469      8000    0.049976      
     11000   -0.021700     11000   0.020797      11000   0.001711      
     12000   -0.041878     12000   0.037964      12000   0.003123      
     13000   -0.083934     13000   0.068541      13000   0.005639      
     14000   -0.232811     14000   0.182640      14000   0.015026      
     19000   -0.008920     19000   0.005027      19000   0.000414      
     20000   -0.068973     20000   0.037918      20000   0.003120      
     22000   -0.011151     22000   0.005133      22000   0.000422      
     25000   -0.001541     25000   0.000618      25000   0.000051      
     26000   -0.085141     26000   0.033592      26000   0.002764      
     82000   -0.002835     82000   0.000302      82000   0.000025      
********************************************************************************

********************************************************************************
  267 : Rock, Granite 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.690000 
  Total atom density (atoms/b-cm) = 7.784E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.484170      0.629769      0.049023      
  Na        11023        11000        0.027328      0.024738      0.001926      
  Mg        12000        12000        0.004274      0.003660      0.000285      
  Al        13027        13000        0.076188      0.058764      0.004574      
  Si        14000        14000        0.336169      0.249093      0.019390      
  K         19000        19000        0.034144      0.018174      0.001415      
  Ca        20000        20000        0.012985      0.006743      0.000525      
  Ti        22000        22000        0.001795      0.000780      0.000061      
  Mn        25055        25000        0.000387      0.000146      0.000011      
  Fe        26000        26000        0.021555      0.008033      0.000625      
  Pb        82000        82000        0.001004      0.000101      0.000008      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.484170     8016    0.629769      8016    0.049023      
     11023   -0.027328     11023   0.024738      11023   0.001926      
     12000   -0.004274     12000   0.003660      12000   0.000285      
     13027   -0.076188     13027   0.058764      13027   0.004574      
     14000   -0.336169     14000   0.249093      14000   0.019390      
     19000   -0.034144     19000   0.018174      19000   0.001415      
     20000   -0.012985     20000   0.006743      20000   0.000525      
     22000   -0.001795     22000   0.000780      22000   0.000061      
     25055   -0.000387     25055   0.000146      25055   0.000011      
     26000   -0.021555     26000   0.008033      26000   0.000625      
     82000   -0.001004     82000   0.000101      82000   0.000008      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.484170     8000    0.629769      8000    0.049023      
     11000   -0.027328     11000   0.024738      11000   0.001926      
     12000   -0.004274     12000   0.003660      12000   0.000285      
     13000   -0.076188     13000   0.058764      13000   0.004574      
     14000   -0.336169     14000   0.249093      14000   0.019390      
     19000   -0.034144     19000   0.018174      19000   0.001415      
     20000   -0.012985     20000   0.006743      20000   0.000525      
     22000   -0.001795     22000   0.000780      22000   0.000061      
     25000   -0.000387     25000   0.000146      25000   0.000011      
     26000   -0.021555     26000   0.008033      26000   0.000625      
     82000   -0.001004     82000   0.000101      82000   0.000008      
********************************************************************************

********************************************************************************
  268 : Rock, Limestone 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.610000 
  Total atom density (atoms/b-cm) = 8.206E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.000899      0.017089      0.001402      
  C         6000         6000         0.113782      0.181445      0.014890      
  O         8016         8000         0.497802      0.595930      0.048904      
  Na        11023        11000        0.000373      0.000310      0.000025      
  Mg        12000        12000        0.047860      0.037715      0.003095      
  Al        13027        13000        0.004254      0.003019      0.000248      
  Si        14000        14000        0.024419      0.016653      0.001367      
  S         16000        16000        0.000201      0.000120      0.000010      
  K         19000        19000        0.000334      0.000163      0.000013      
  Ca        20000        20000        0.305865      0.146173      0.011995      
  Ti        22000        22000        0.000361      0.000145      0.000012      
  Fe        26000        26000        0.003513      0.001205      0.000099      
  Pb        82000        82000        0.000337      0.000031      0.000003      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.000899     1001    0.017089      1001    0.001402      
     6000    -0.113782     6000    0.181445      6000    0.014890      
     8016    -0.497802     8016    0.595930      8016    0.048904      
     11023   -0.000373     11023   0.000310      11023   0.000025      
     12000   -0.047860     12000   0.037715      12000   0.003095      
     13027   -0.004254     13027   0.003019      13027   0.000248      
     14000   -0.024419     14000   0.016653      14000   0.001367      
     16000   -0.000201     16000   0.000120      16000   0.000010      
     19000   -0.000334     19000   0.000163      19000   0.000013      
     20000   -0.305865     20000   0.146173      20000   0.011995      
     22000   -0.000361     22000   0.000145      22000   0.000012      
     26000   -0.003513     26000   0.001205      26000   0.000099      
     82000   -0.000337     82000   0.000031      82000   0.000003      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.000899     1000    0.017089      1000    0.001402      
     6000    -0.113782     6000    0.181445      6000    0.014890      
     8000    -0.497802     8000    0.595930      8000    0.048904      
     11000   -0.000373     11000   0.000310      11000   0.000025      
     12000   -0.047860     12000   0.037715      12000   0.003095      
     13000   -0.004254     13000   0.003019      13000   0.000248      
     14000   -0.024419     14000   0.016653      14000   0.001367      
     16000   -0.000201     16000   0.000120      16000   0.000010      
     19000   -0.000334     19000   0.000163      19000   0.000013      
     20000   -0.305865     20000   0.146173      20000   0.011995      
     22000   -0.000361     22000   0.000145      22000   0.000012      
     26000   -0.003513     26000   0.001205      26000   0.000099      
     82000   -0.000337     82000   0.000031      82000   0.000003      
********************************************************************************

********************************************************************************
  269 : Rock, Sandstone 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 7.166E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.001791      0.034647      0.002483      
  C         6000         6000         0.013652      0.022161      0.001588      
  O         8016         8000         0.519609      0.633160      0.045375      
  Na        11023        11000        0.002969      0.002518      0.000180      
  Mg        12000        12000        0.007240      0.005807      0.000416      
  Al        13027        13000        0.025417      0.018365      0.001316      
  Si        14000        14000        0.366185      0.254190      0.018216      
  S         16000        16000        0.000280      0.000171      0.000012      
  K         19000        19000        0.011628      0.005798      0.000416      
  Ca        20000        20000        0.039328      0.019131      0.001371      
  Ti        22000        22000        0.001199      0.000488      0.000035      
  Fe        26000        26000        0.010031      0.003502      0.000251      
  Pb        82000        82000        0.000671      0.000063      0.000005      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.001791     1001    0.034647      1001    0.002483      
     6000    -0.013652     6000    0.022161      6000    0.001588      
     8016    -0.519609     8016    0.633160      8016    0.045375      
     11023   -0.002969     11023   0.002518      11023   0.000180      
     12000   -0.007240     12000   0.005807      12000   0.000416      
     13027   -0.025417     13027   0.018365      13027   0.001316      
     14000   -0.366185     14000   0.254190      14000   0.018216      
     16000   -0.000280     16000   0.000171      16000   0.000012      
     19000   -0.011628     19000   0.005798      19000   0.000416      
     20000   -0.039328     20000   0.019131      20000   0.001371      
     22000   -0.001199     22000   0.000488      22000   0.000035      
     26000   -0.010031     26000   0.003502      26000   0.000251      
     82000   -0.000671     82000   0.000063      82000   0.000005      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.001791     1000    0.034647      1000    0.002483      
     6000    -0.013652     6000    0.022161      6000    0.001588      
     8000    -0.519609     8000    0.633160      8000    0.045375      
     11000   -0.002969     11000   0.002518      11000   0.000180      
     12000   -0.007240     12000   0.005807      12000   0.000416      
     13000   -0.025417     13000   0.018365      13000   0.001316      
     14000   -0.366185     14000   0.254190      14000   0.018216      
     16000   -0.000280     16000   0.000171      16000   0.000012      
     19000   -0.011628     19000   0.005798      19000   0.000416      
     20000   -0.039328     20000   0.019131      20000   0.001371      
     22000   -0.001199     22000   0.000488      22000   0.000035      
     26000   -0.010031     26000   0.003502      26000   0.000251      
     82000   -0.000671     82000   0.000063      82000   0.000005      
********************************************************************************

********************************************************************************
  270 : Rock, Shale 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 2.680000 
  Total atom density (atoms/b-cm) = 8.625E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.005597      0.103900      0.008961      
  C         6000         6000         0.007098      0.011058      0.000954      
  O         8016         8000         0.498049      0.582500      0.050241      
  Na        11023        11000        0.009647      0.007852      0.000677      
  Mg        12000        12000        0.014477      0.011146      0.000961      
  Al        13027        13000        0.081529      0.056542      0.004877      
  Si        14000        14000        0.271661      0.180997      0.015611      
  S         16000        16000        0.002404      0.001403      0.000121      
  K         19000        19000        0.035707      0.017089      0.001474      
  Ca        20000        20000        0.022162      0.010347      0.000892      
  Ti        22000        22000        0.003597      0.001406      0.000121      
  Fe        26000        26000        0.046646      0.015630      0.001348      
  Pb        82000        82000        0.001425      0.000129      0.000011      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.005597     1001    0.103900      1001    0.008961      
     6000    -0.007098     6000    0.011058      6000    0.000954      
     8016    -0.498049     8016    0.582500      8016    0.050241      
     11023   -0.009647     11023   0.007852      11023   0.000677      
     12000   -0.014477     12000   0.011146      12000   0.000961      
     13027   -0.081529     13027   0.056542      13027   0.004877      
     14000   -0.271661     14000   0.180997      14000   0.015611      
     16000   -0.002404     16000   0.001403      16000   0.000121      
     19000   -0.035707     19000   0.017089      19000   0.001474      
     20000   -0.022162     20000   0.010347      20000   0.000892      
     22000   -0.003597     22000   0.001406      22000   0.000121      
     26000   -0.046646     26000   0.015630      26000   0.001348      
     82000   -0.001425     82000   0.000129      82000   0.000011      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.005597     1000    0.103900      1000    0.008961      
     6000    -0.007098     6000    0.011058      6000    0.000954      
     8000    -0.498049     8000    0.582500      8000    0.050241      
     11000   -0.009647     11000   0.007852      11000   0.000677      
     12000   -0.014477     12000   0.011146      12000   0.000961      
     13000   -0.081529     13000   0.056542      13000   0.004877      
     14000   -0.271661     14000   0.180997      14000   0.015611      
     16000   -0.002404     16000   0.001403      16000   0.000121      
     19000   -0.035707     19000   0.017089      19000   0.001474      
     20000   -0.022162     20000   0.010347      20000   0.000892      
     22000   -0.003597     22000   0.001406      22000   0.000121      
     26000   -0.046646     26000   0.015630      26000   0.001348      
     82000   -0.001425     82000   0.000129      82000   0.000011      
********************************************************************************

********************************************************************************
  271 : Rubber, Butyl 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.920000 
  Total atom density (atoms/b-cm) = 1.185E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.143711      0.666653      0.078994      
  C         6000         6000         0.856289      0.333347      0.039499      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.143711     1001    0.666653      1001    0.078994      
     6000    -0.856289     6000    0.333347      6000    0.039499      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.143711     1000    0.666653      1000    0.078994      
     6000    -0.856289     6000    0.333347      6000    0.039499      
********************************************************************************

********************************************************************************
  272 : Rubber, Natural 
  Source = PNNL-15870 Rev. 1 
  Formula = C5H8 
  Molecular weight (g/mole) = 68.11702 
  Density (g/cm3) = 0.920000 
  Total atom density (atoms/b-cm) = 1.057E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.118371      0.615370      0.065065      
  C         6000         6000         0.881629      0.384630      0.040668      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.118371     1001    0.615370      1001    0.065065      
     6000    -0.881629     6000    0.384630      6000    0.040668      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.118371     1000    0.615370      1000    0.065065      
     6000    -0.881629     6000    0.384630      6000    0.040668      
********************************************************************************

********************************************************************************
  273 : Rubber, Neoprene 
  Source = PNNL-15870 Rev. 1 
  Formula = C4H5Cl 
  Molecular weight (g/mole) = 88.5355 
  Density (g/cm3) = 1.230000 
  Total atom density (atoms/b-cm) = 8.366E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.056920      0.499985      0.041830      
  C         6000         6000         0.542646      0.400014      0.033466      
  Cl        17000        17000        0.400434      0.100001      0.008366      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.056920     1001    0.499985      1001    0.041830      
     6000    -0.542646     6000    0.400014      6000    0.033466      
     17000   -0.400434     17000   0.100001      17000   0.008366      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.056920     1000    0.499985      1000    0.041830      
     6000    -0.542646     6000    0.400014      6000    0.033466      
     17000   -0.400434     17000   0.100001      17000   0.008366      
********************************************************************************

********************************************************************************
  274 : Rubber, Silicon 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.018500 
  Total atom density (atoms/b-cm) = 8.227E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.080716      0.597039      0.049118      
  C         6000         6000         0.321164      0.199359      0.016401      
  O         8016         8000         0.223545      0.104169      0.008570      
  Si        14000        14000        0.374575      0.099434      0.008180      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.080716     1001    0.597039      1001    0.049118      
     6000    -0.321164     6000    0.199359      6000    0.016401      
     8016    -0.223545     8016    0.104169      8016    0.008570      
     14000   -0.374575     14000   0.099434      14000   0.008180      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.080716     1000    0.597039      1000    0.049118      
     6000    -0.321164     6000    0.199359      6000    0.016401      
     8000    -0.223545     8000    0.104169      8000    0.008570      
     14000   -0.374575     14000   0.099434      14000   0.008180      
********************************************************************************

********************************************************************************
  275 : Salt Water (T=0 C) 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O:NaCl 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.209865 
  Total atom density (atoms/b-cm) = 9.600E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.082491      0.621161      0.059630      
  O         8016         8000         0.654709      0.310581      0.029815      
  Na        11023        11000        0.103378      0.034129      0.003276      
  Cl        17000        17000        0.159422      0.034129      0.003276      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.082491     1001    0.621161      1001    0.059630      
     8016    -0.654709     8016    0.310581      8016    0.029815      
     11023   -0.103378     11023   0.034129      11023   0.003276      
     17000   -0.159422     17000   0.034129      17000   0.003276      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.082491     1000    0.621161      1000    0.059630      
     8000    -0.654709     8000    0.310581      8000    0.029815      
     11000   -0.103378     11000   0.034129      11000   0.003276      
     17000   -0.159422     17000   0.034129      17000   0.003276      
********************************************************************************

********************************************************************************
  276 : Salt Water (T=20 C) 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O:NaCl 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.022394 
  Total atom density (atoms/b-cm) = 9.978E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.108114      0.661906      0.066042      
  O         8016         8000         0.858069      0.330953      0.033021      
  Na        11023        11000        0.013302      0.003571      0.000356      
  Cl        17000        17000        0.020514      0.003571      0.000356      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.108114     1001    0.661906      1001    0.066042      
     8016    -0.858069     8016    0.330953      8016    0.033021      
     11023   -0.013302     11023   0.003571      11023   0.000356      
     17000   -0.020514     17000   0.003571      17000   0.000356      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.108114     1000    0.661906      1000    0.066042      
     8000    -0.858069     8000    0.330953      8000    0.033021      
     11000   -0.013302     11000   0.003571      11000   0.000356      
     17000   -0.020514     17000   0.003571      17000   0.000356      
********************************************************************************

********************************************************************************
  277 : Sand 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.700000 
  Total atom density (atoms/b-cm) = 5.876E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.007833      0.135405      0.007956      
  C         6000         6000         0.003360      0.004874      0.000286      
  O         8016         8000         0.536153      0.583890      0.034307      
  Na        11023        11000        0.017063      0.012932      0.000760      
  Al        13027        13000        0.034401      0.022215      0.001305      
  Si        14000        14000        0.365067      0.226483      0.013307      
  K         19000        19000        0.011622      0.005179      0.000304      
  Ca        20000        20000        0.011212      0.004874      0.000286      
  Fe        26000        26000        0.013289      0.004146      0.000244      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.007833     1001    0.135405      1001    0.007956      
     6000    -0.003360     6000    0.004874      6000    0.000286      
     8016    -0.536153     8016    0.583890      8016    0.034307      
     11023   -0.017063     11023   0.012932      11023   0.000760      
     13027   -0.034401     13027   0.022215      13027   0.001305      
     14000   -0.365067     14000   0.226483      14000   0.013307      
     19000   -0.011622     19000   0.005179      19000   0.000304      
     20000   -0.011212     20000   0.004874      20000   0.000286      
     26000   -0.013289     26000   0.004146      26000   0.000244      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.007833     1000    0.135405      1000    0.007956      
     6000    -0.003360     6000    0.004874      6000    0.000286      
     8000    -0.536153     8000    0.583890      8000    0.034307      
     11000   -0.017063     11000   0.012932      11000   0.000760      
     13000   -0.034401     13000   0.022215      13000   0.001305      
     14000   -0.365067     14000   0.226483      14000   0.013307      
     19000   -0.011622     19000   0.005179      19000   0.000304      
     20000   -0.011212     20000   0.004874      20000   0.000286      
     26000   -0.013289     26000   0.004146      26000   0.000244      
********************************************************************************

********************************************************************************
  278 : Sea Water, Simple Artificial 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.023343 
  Total atom density (atoms/b-cm) = 9.979E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.107974      0.661590      0.066017      
  O         8016         8000         0.858765      0.331493      0.033078      
  Na        11023        11000        0.010785      0.002897      0.000289      
  Mg        12000        12000        0.001284      0.000326      0.000033      
  S         16000        16000        0.000906      0.000174      0.000017      
  Cl        17000        17000        0.019472      0.003392      0.000338      
  K         19000        19000        0.000399      0.000063      0.000006      
  Ca        20000        20000        0.000415      0.000064      0.000006      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.107974     1001    0.661590      1001    0.066017      
     8016    -0.858765     8016    0.331493      8016    0.033078      
     11023   -0.010785     11023   0.002897      11023   0.000289      
     12000   -0.001284     12000   0.000326      12000   0.000033      
     16000   -0.000906     16000   0.000174      16000   0.000017      
     17000   -0.019472     17000   0.003392      17000   0.000338      
     19000   -0.000399     19000   0.000063      19000   0.000006      
     20000   -0.000415     20000   0.000064      20000   0.000006      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.107974     1000    0.661590      1000    0.066017      
     8000    -0.858765     8000    0.331493      8000    0.033078      
     11000   -0.010785     11000   0.002897      11000   0.000289      
     12000   -0.001284     12000   0.000326      12000   0.000033      
     16000   -0.000906     16000   0.000174      16000   0.000017      
     17000   -0.019472     17000   0.003392      17000   0.000338      
     19000   -0.000399     19000   0.000063      19000   0.000006      
     20000   -0.000415     20000   0.000064      20000   0.000006      
********************************************************************************

********************************************************************************
  279 : Sea Water, Standard 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.023343 
  Total atom density (atoms/b-cm) = 9.979E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.107979      0.661599      0.066020      
  B         -            5000         0.000005      0.000003      0.000000      
  O         8016         8000         0.858803      0.331497      0.033080      
  F         9019         9000         0.000001      0.000000      0.000000      
  Na        11023        11000        0.010784      0.002897      0.000289      
  Mg        12000        12000        0.001284      0.000326      0.000033      
  S         16000        16000        0.000905      0.000174      0.000017      
  Cl        17000        17000        0.019352      0.003371      0.000336      
  K         19000        19000        0.000399      0.000063      0.000006      
  Ca        20000        20000        0.000412      0.000064      0.000006      
  Br        -            35000        0.000067      0.000005      0.000001      
  Sr        -            38000        0.000008      0.000001      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.107979     1001    0.661599      1001    0.066020      
     -       -0.000005     -       0.000003      -       0.000000      
     8016    -0.858803     8016    0.331497      8016    0.033080      
     9019    -0.000001     9019    0.000000      9019    0.000000      
     11023   -0.010784     11023   0.002897      11023   0.000289      
     12000   -0.001284     12000   0.000326      12000   0.000033      
     16000   -0.000905     16000   0.000174      16000   0.000017      
     17000   -0.019352     17000   0.003371      17000   0.000336      
     19000   -0.000399     19000   0.000063      19000   0.000006      
     20000   -0.000412     20000   0.000064      20000   0.000006      
     -       -0.000067     -       0.000005      -       0.000001      
     -       -0.000008     -       0.000001      -       0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.107979     1000    0.661599      1000    0.066020      
     5000    -0.000005     5000    0.000003      5000    0.000000      
     8000    -0.858803     8000    0.331497      8000    0.033080      
     9000    -0.000001     9000    0.000000      9000    0.000000      
     11000   -0.010784     11000   0.002897      11000   0.000289      
     12000   -0.001284     12000   0.000326      12000   0.000033      
     16000   -0.000905     16000   0.000174      16000   0.000017      
     17000   -0.019352     17000   0.003371      17000   0.000336      
     19000   -0.000399     19000   0.000063      19000   0.000006      
     20000   -0.000412     20000   0.000064      20000   0.000006      
     35000   -0.000067     35000   0.000005      35000   0.000001      
     38000   -0.000008     38000   0.000001      38000   0.000000      
********************************************************************************

********************************************************************************
  280 : Sepiolite 
  Source = PNNL-15870 Rev. 1 
  Formula = Mg4Si6O15(OH)2-6(H2O) 
  Molecular weight (g/mole) = 647.83036 
  Density (g/cm3) = 2.140000 
  Total atom density (atoms/b-cm) = 9.350E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.021782      0.297872      0.027850      
  O         8016         8000         0.568029      0.489362      0.045754      
  Mg        12000        12000        0.150070      0.085106      0.007957      
  Si        14000        14000        0.260119      0.127660      0.011936      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.021782     1001    0.297872      1001    0.027850      
     8016    -0.568029     8016    0.489362      8016    0.045754      
     12000   -0.150070     12000   0.085106      12000   0.007957      
     14000   -0.260119     14000   0.127660      14000   0.011936      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.021782     1000    0.297872      1000    0.027850      
     8000    -0.568029     8000    0.489362      8000    0.045754      
     12000   -0.150070     12000   0.085106      12000   0.007957      
     14000   -0.260119     14000   0.127660      14000   0.011936      
********************************************************************************

********************************************************************************
  281 : Silicon 
  Source = PNNL-15870 Rev. 1 
  Formula = Si 
  Molecular weight (g/mole) = 28.0855 
  Density (g/cm3) = 2.330000 
  Total atom density (atoms/b-cm) = 4.996E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Si        14000        14000        1.000000      1.000000      0.049960      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     14000   -1.000000     14000   1.000000      14000   0.049960      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     14000   -1.000000     14000   1.000000      14000   0.049960      
********************************************************************************

********************************************************************************
  282 : Silicon Carbide (hexagonal) 
  Source = PNNL-15870 Rev. 1 
  Formula = SiC 
  Molecular weight (g/mole) = 40.0962 
  Density (g/cm3) = 3.210000 
  Total atom density (atoms/b-cm) = 9.642E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.299547      0.500000      0.048212      
  Si        14000        14000        0.700453      0.500000      0.048212      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.299547     6000    0.500000      6000    0.048212      
     14000   -0.700453     14000   0.500000      14000   0.048212      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.299547     6000    0.500000      6000    0.048212      
     14000   -0.700453     14000   0.500000      14000   0.048212      
********************************************************************************

********************************************************************************
  283 : Silicon Dioxide (Alpha-quartz) 
  Source = PNNL-15870 Rev. 1 
  Formula = SiO2 
  Molecular weight (g/mole) = 60.0843 
  Density (g/cm3) = 2.648000 
  Total atom density (atoms/b-cm) = 7.962E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.532565      0.666667      0.053081      
  Si        14000        14000        0.467435      0.333333      0.026540      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.532565     8016    0.666667      8016    0.053081      
     14000   -0.467435     14000   0.333333      14000   0.026540      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.532565     8000    0.666667      8000    0.053081      
     14000   -0.467435     14000   0.333333      14000   0.026540      
********************************************************************************

********************************************************************************
  284 : Silicon Dioxide (Silica) 
  Source = PNNL-15870 Rev. 1 
  Formula = SiO2 
  Molecular weight (g/mole) = 60.0843 
  Density (g/cm3) = 2.320000 
  Total atom density (atoms/b-cm) = 6.976E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.532565      0.666667      0.046506      
  Si        14000        14000        0.467435      0.333333      0.023253      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.532565     8016    0.666667      8016    0.046506      
     14000   -0.467435     14000   0.333333      14000   0.023253      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.532565     8000    0.666667      8000    0.046506      
     14000   -0.467435     14000   0.333333      14000   0.023253      
********************************************************************************

********************************************************************************
  285 : Silver 
  Source = PNNL-15870 Rev. 1 
  Formula = Ag 
  Molecular weight (g/mole) = 107.8682 
  Density (g/cm3) = 10.500000 
  Total atom density (atoms/b-cm) = 5.862E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ag        47000        47000        1.000000      1.000000      0.058620      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     47000   -1.000000     47000   1.000000      47000   0.058620      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     47000   -1.000000     47000   1.000000      47000   0.058620      
********************************************************************************

********************************************************************************
  286 : Skin (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.100000 
  Total atom density (atoms/b-cm) = 1.066E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.100588      0.619966      0.066108      
  C         6000         6000         0.228250      0.118059      0.012589      
  N         7014         7000         0.046420      0.020589      0.002195      
  O         8016         8000         0.619002      0.240350      0.025629      
  Na        11023        11000        0.000070      0.000019      0.000002      
  Mg        12000        12000        0.000060      0.000015      0.000002      
  P         15031        15000        0.000330      0.000066      0.000007      
  S         16000        16000        0.001590      0.000308      0.000033      
  Cl        17000        17000        0.002670      0.000468      0.000050      
  K         19000        19000        0.000850      0.000135      0.000014      
  Ca        20000        20000        0.000150      0.000023      0.000002      
  Fe        26000        26000        0.000010      0.000001      0.000000      
  Zn        30000        30000        0.000010      0.000001      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.100588     1001    0.619966      1001    0.066108      
     6000    -0.228250     6000    0.118059      6000    0.012589      
     7014    -0.046420     7014    0.020589      7014    0.002195      
     8016    -0.619002     8016    0.240350      8016    0.025629      
     11023   -0.000070     11023   0.000019      11023   0.000002      
     12000   -0.000060     12000   0.000015      12000   0.000002      
     15031   -0.000330     15031   0.000066      15031   0.000007      
     16000   -0.001590     16000   0.000308      16000   0.000033      
     17000   -0.002670     17000   0.000468      17000   0.000050      
     19000   -0.000850     19000   0.000135      19000   0.000014      
     20000   -0.000150     20000   0.000023      20000   0.000002      
     26000   -0.000010     26000   0.000001      26000   0.000000      
     30000   -0.000010     30000   0.000001      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.100588     1000    0.619966      1000    0.066108      
     6000    -0.228250     6000    0.118059      6000    0.012589      
     7000    -0.046420     7000    0.020589      7000    0.002195      
     8000    -0.619002     8000    0.240350      8000    0.025629      
     11000   -0.000070     11000   0.000019      11000   0.000002      
     12000   -0.000060     12000   0.000015      12000   0.000002      
     15000   -0.000330     15000   0.000066      15000   0.000007      
     16000   -0.001590     16000   0.000308      16000   0.000033      
     17000   -0.002670     17000   0.000468      17000   0.000050      
     19000   -0.000850     19000   0.000135      19000   0.000014      
     20000   -0.000150     20000   0.000023      20000   0.000002      
     26000   -0.000010     26000   0.000001      26000   0.000000      
     30000   -0.000010     30000   0.000001      30000   0.000000      
********************************************************************************

********************************************************************************
  287 : Sodium 
  Source = PNNL-15870 Rev. 1 
  Formula = Na 
  Molecular weight (g/mole) = 22.98977 
  Density (g/cm3) = 0.971000 
  Total atom density (atoms/b-cm) = 2.544E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Na        11023        11000        1.000000      1.000000      0.025435      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11023   -1.000000     11023   1.000000      11023   0.025435      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11000   -1.000000     11000   1.000000      11000   0.025435      
********************************************************************************

********************************************************************************
  288 : Sodium Bismuth Tungstate (NBWO) 
  Source = PNNL-15870 Rev. 1 
  Formula = NaBi(WO4)2 
  Molecular weight (g/mole) = 727.64535 
  Density (g/cm3) = 7.570000 
  Total atom density (atoms/b-cm) = 7.518E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.175903      0.666667      0.050121      
  Na        11023        11000        0.031595      0.083333      0.006265      
  W         74000        74000        0.505301      0.166667      0.012530      
  Bi        83209        83000        0.287201      0.083333      0.006265      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.175903     8016    0.666667      8016    0.050121      
     11023   -0.031595     11023   0.083333      11023   0.006265      
     74000   -0.505301     74000   0.166667      74000   0.012530      
     83209   -0.287201     83209   0.083333      83209   0.006265      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.175903     8000    0.666667      8000    0.050121      
     11000   -0.031595     11000   0.083333      11000   0.006265      
     74000   -0.505301     74000   0.166667      74000   0.012530      
     83000   -0.287201     83000   0.083333      83000   0.006265      
********************************************************************************

********************************************************************************
  289 : Sodium Chloride 
  Source = PNNL-15870 Rev. 1 
  Formula = NaCl 
  Molecular weight (g/mole) = 58.44277 
  Density (g/cm3) = 2.170000 
  Total atom density (atoms/b-cm) = 4.472E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Na        11023        11000        0.393372      0.500000      0.022360      
  Cl        17000        17000        0.606628      0.500000      0.022360      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11023   -0.393372     11023   0.500000      11023   0.022360      
     17000   -0.606628     17000   0.500000      17000   0.022360      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11000   -0.393372     11000   0.500000      11000   0.022360      
     17000   -0.606628     17000   0.500000      17000   0.022360      
********************************************************************************

********************************************************************************
  290 : Sodium Iodide 
  Source = PNNL-15870 Rev. 1 
  Formula = NaI 
  Molecular weight (g/mole) = 149.89424 
  Density (g/cm3) = 3.667000 
  Total atom density (atoms/b-cm) = 2.947E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Na        11023        11000        0.153373      0.499999      0.014732      
  I         53127        53000        0.846627      0.500001      0.014733      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11023   -0.153373     11023   0.499999      11023   0.014732      
     53127   -0.846627     53127   0.500001      53127   0.014733      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     11000   -0.153373     11000   0.499999      11000   0.014732      
     53000   -0.846627     53000   0.500001      53000   0.014733      
********************************************************************************

********************************************************************************
  291 : Sodium Nitrate 
  Source = PNNL-15870 Rev. 1 
  Formula = NaNO3 
  Molecular weight (g/mole) = 84.99467 
  Density (g/cm3) = 2.261000 
  Total atom density (atoms/b-cm) = 8.010E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         0.164795      0.200000      0.016020      
  O         8016         8000         0.564720      0.600000      0.048060      
  Na        11023        11000        0.270485      0.200000      0.016020      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -0.164795     7014    0.200000      7014    0.016020      
     8016    -0.564720     8016    0.600000      8016    0.048060      
     11023   -0.270485     11023   0.200000      11023   0.016020      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -0.164795     7000    0.200000      7000    0.016020      
     8000    -0.564720     8000    0.600000      8000    0.048060      
     11000   -0.270485     11000   0.200000      11000   0.016020      
********************************************************************************

********************************************************************************
  292 : Sodium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = Na2O 
  Molecular weight (g/mole) = 61.97894 
  Density (g/cm3) = 2.270000 
  Total atom density (atoms/b-cm) = 6.617E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.258143      0.333333      0.022056      
  Na        11023        11000        0.741857      0.666667      0.044113      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.258143     8016    0.333333      8016    0.022056      
     11023   -0.741857     11023   0.666667      11023   0.044113      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.258143     8000    0.333333      8000    0.022056      
     11000   -0.741857     11000   0.666667      11000   0.044113      
********************************************************************************

********************************************************************************
  293 : Steel, Boron Stainless 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.870000 
  Total atom density (atoms/b-cm) = 8.978E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  B         -            5000         0.010000      0.048827      0.004384      
  C         6000         6000         0.000396      0.001740      0.000156      
  Si        14000        14000        0.004950      0.009304      0.000835      
  P         15031        15000        0.000228      0.000388      0.000035      
  S         16000        16000        0.000149      0.000244      0.000022      
  Cr        24000        24000        0.188100      0.190960      0.017145      
  Mn        25055        25000        0.009900      0.009512      0.000854      
  Fe        26000        26000        0.694713      0.656666      0.058959      
  Ni        28000        28000        0.091575      0.082359      0.007395      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     -       -0.010000     -       0.048827      -       0.004384      
     6000    -0.000396     6000    0.001740      6000    0.000156      
     14000   -0.004950     14000   0.009304      14000   0.000835      
     15031   -0.000228     15031   0.000388      15031   0.000035      
     16000   -0.000149     16000   0.000244      16000   0.000022      
     24000   -0.188100     24000   0.190960      24000   0.017145      
     25055   -0.009900     25055   0.009512      25055   0.000854      
     26000   -0.694713     26000   0.656666      26000   0.058959      
     28000   -0.091575     28000   0.082359      28000   0.007395      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     5000    -0.010000     5000    0.048827      5000    0.004384      
     6000    -0.000396     6000    0.001740      6000    0.000156      
     14000   -0.004950     14000   0.009304      14000   0.000835      
     15000   -0.000228     15000   0.000388      15000   0.000035      
     16000   -0.000149     16000   0.000244      16000   0.000022      
     24000   -0.188100     24000   0.190960      24000   0.017145      
     25000   -0.009900     25000   0.009512      25000   0.000854      
     26000   -0.694713     26000   0.656666      26000   0.058959      
     28000   -0.091575     28000   0.082359      28000   0.007395      
********************************************************************************

********************************************************************************
  294 : Steel, Carbon 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.820000 
  Total atom density (atoms/b-cm) = 8.587E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.005000      0.022831      0.001960      
  Fe        26000        26000        0.995000      0.977169      0.083907      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.005000     6000    0.022831      6000    0.001960      
     26000   -0.995000     26000   0.977169      26000   0.083907      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.005000     6000    0.022831      6000    0.001960      
     26000   -0.995000     26000   0.977169      26000   0.083907      
********************************************************************************

********************************************************************************
  295 : Steel, HT9 Stainless 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.874000 
  Total atom density (atoms/b-cm) = 8.598E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.002000      0.009183      0.000790      
  Si        14000        14000        0.004000      0.007854      0.000675      
  P         15031        15000        0.000300      0.000534      0.000046      
  S         16000        16000        0.000200      0.000344      0.000030      
  V         23000        23000        0.003000      0.003248      0.000279      
  Cr        24000        24000        0.115000      0.121971      0.010488      
  Mn        25055        25000        0.006000      0.006023      0.000518      
  Fe        26000        26000        0.849500      0.838897      0.072132      
  Ni        28000        28000        0.005000      0.004698      0.000404      
  Mo        42000        42000        0.010000      0.005748      0.000494      
  W         74000        74000        0.005000      0.001500      0.000129      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.002000     6000    0.009183      6000    0.000790      
     14000   -0.004000     14000   0.007854      14000   0.000675      
     15031   -0.000300     15031   0.000534      15031   0.000046      
     16000   -0.000200     16000   0.000344      16000   0.000030      
     23000   -0.003000     23000   0.003248      23000   0.000279      
     24000   -0.115000     24000   0.121971      24000   0.010488      
     25055   -0.006000     25055   0.006023      25055   0.000518      
     26000   -0.849500     26000   0.838897      26000   0.072132      
     28000   -0.005000     28000   0.004698      28000   0.000404      
     42000   -0.010000     42000   0.005748      42000   0.000494      
     74000   -0.005000     74000   0.001500      74000   0.000129      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.002000     6000    0.009183      6000    0.000790      
     14000   -0.004000     14000   0.007854      14000   0.000675      
     15000   -0.000300     15000   0.000534      15000   0.000046      
     16000   -0.000200     16000   0.000344      16000   0.000030      
     23000   -0.003000     23000   0.003248      23000   0.000279      
     24000   -0.115000     24000   0.121971      24000   0.010488      
     25000   -0.006000     25000   0.006023      25000   0.000518      
     26000   -0.849500     26000   0.838897      26000   0.072132      
     28000   -0.005000     28000   0.004698      28000   0.000404      
     42000   -0.010000     42000   0.005748      42000   0.000494      
     74000   -0.005000     74000   0.001500      74000   0.000129      
********************************************************************************

********************************************************************************
  296 : Steel, Stainless 202 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.860000 
  Total atom density (atoms/b-cm) = 8.680E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000750      0.003405      0.000296      
  N         7014         7000         0.001250      0.004866      0.000422      
  Si        14000        14000        0.005000      0.009708      0.000843      
  P         15031        15000        0.000300      0.000528      0.000046      
  S         16000        16000        0.000150      0.000255      0.000022      
  Cr        24000        24000        0.180000      0.188773      0.016386      
  Mn        25055        25000        0.087500      0.086851      0.007539      
  Fe        26000        26000        0.675050      0.659160      0.057217      
  Ni        28000        28000        0.050000      0.046454      0.004032      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000750     6000    0.003405      6000    0.000296      
     7014    -0.001250     7014    0.004866      7014    0.000422      
     14000   -0.005000     14000   0.009708      14000   0.000843      
     15031   -0.000300     15031   0.000528      15031   0.000046      
     16000   -0.000150     16000   0.000255      16000   0.000022      
     24000   -0.180000     24000   0.188773      24000   0.016386      
     25055   -0.087500     25055   0.086851      25055   0.007539      
     26000   -0.675050     26000   0.659160      26000   0.057217      
     28000   -0.050000     28000   0.046454      28000   0.004032      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000750     6000    0.003405      6000    0.000296      
     7000    -0.001250     7000    0.004866      7000    0.000422      
     14000   -0.005000     14000   0.009708      14000   0.000843      
     15000   -0.000300     15000   0.000528      15000   0.000046      
     16000   -0.000150     16000   0.000255      16000   0.000022      
     24000   -0.180000     24000   0.188773      24000   0.016386      
     25000   -0.087500     25000   0.086851      25000   0.007539      
     26000   -0.675050     26000   0.659160      26000   0.057217      
     28000   -0.050000     28000   0.046454      28000   0.004032      
********************************************************************************

********************************************************************************
  297 : Steel, Stainless 302 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.860000 
  Total atom density (atoms/b-cm) = 8.680E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.001400      0.006356      0.000552      
  Si        14000        14000        0.009300      0.018057      0.001567      
  P         15031        15000        0.000420      0.000739      0.000064      
  S         16000        16000        0.000280      0.000476      0.000041      
  Cr        24000        24000        0.180000      0.188773      0.016386      
  Mn        25055        25000        0.018600      0.018462      0.001603      
  Fe        26000        26000        0.700000      0.683520      0.059332      
  Ni        28000        28000        0.090000      0.083616      0.007258      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.001400     6000    0.006356      6000    0.000552      
     14000   -0.009300     14000   0.018057      14000   0.001567      
     15031   -0.000420     15031   0.000739      15031   0.000064      
     16000   -0.000280     16000   0.000476      16000   0.000041      
     24000   -0.180000     24000   0.188773      24000   0.016386      
     25055   -0.018600     25055   0.018462      25055   0.001603      
     26000   -0.700000     26000   0.683520      26000   0.059332      
     28000   -0.090000     28000   0.083616      28000   0.007258      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.001400     6000    0.006356      6000    0.000552      
     14000   -0.009300     14000   0.018057      14000   0.001567      
     15000   -0.000420     15000   0.000739      15000   0.000064      
     16000   -0.000280     16000   0.000476      16000   0.000041      
     24000   -0.180000     24000   0.188773      24000   0.016386      
     25000   -0.018600     25000   0.018462      25000   0.001603      
     26000   -0.700000     26000   0.683520      26000   0.059332      
     28000   -0.090000     28000   0.083616      28000   0.007258      
********************************************************************************

********************************************************************************
  298 : Steel, Stainless 304 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.769E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000400      0.001830      0.000160      
  Si        14000        14000        0.005000      0.009781      0.000858      
  P         15031        15000        0.000230      0.000408      0.000036      
  S         16000        16000        0.000150      0.000257      0.000023      
  Cr        24000        24000        0.190000      0.200762      0.017605      
  Mn        25055        25000        0.010000      0.010001      0.000877      
  Fe        26000        26000        0.701730      0.690375      0.060538      
  Ni        28000        28000        0.092500      0.086587      0.007593      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000400     6000    0.001830      6000    0.000160      
     14000   -0.005000     14000   0.009781      14000   0.000858      
     15031   -0.000230     15031   0.000408      15031   0.000036      
     16000   -0.000150     16000   0.000257      16000   0.000023      
     24000   -0.190000     24000   0.200762      24000   0.017605      
     25055   -0.010000     25055   0.010001      25055   0.000877      
     26000   -0.701730     26000   0.690375      26000   0.060538      
     28000   -0.092500     28000   0.086587      28000   0.007593      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000400     6000    0.001830      6000    0.000160      
     14000   -0.005000     14000   0.009781      14000   0.000858      
     15000   -0.000230     15000   0.000408      15000   0.000036      
     16000   -0.000150     16000   0.000257      16000   0.000023      
     24000   -0.190000     24000   0.200762      24000   0.017605      
     25000   -0.010000     25000   0.010001      25000   0.000877      
     26000   -0.701730     26000   0.690375      26000   0.060538      
     28000   -0.092500     28000   0.086587      28000   0.007593      
********************************************************************************

********************************************************************************
  299 : Steel, Stainless 304L 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.758E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000150      0.000687      0.000060      
  Si        14000        14000        0.005000      0.009793      0.000858      
  P         15031        15000        0.000230      0.000408      0.000036      
  S         16000        16000        0.000150      0.000257      0.000023      
  Cr        24000        24000        0.190000      0.201015      0.017605      
  Mn        25055        25000        0.010000      0.010013      0.000877      
  Fe        26000        26000        0.694480      0.684101      0.059912      
  Ni        28000        28000        0.100000      0.093725      0.008208      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000150     6000    0.000687      6000    0.000060      
     14000   -0.005000     14000   0.009793      14000   0.000858      
     15031   -0.000230     15031   0.000408      15031   0.000036      
     16000   -0.000150     16000   0.000257      16000   0.000023      
     24000   -0.190000     24000   0.201015      24000   0.017605      
     25055   -0.010000     25055   0.010013      25055   0.000877      
     26000   -0.694480     26000   0.684101      26000   0.059912      
     28000   -0.100000     28000   0.093725      28000   0.008208      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000150     6000    0.000687      6000    0.000060      
     14000   -0.005000     14000   0.009793      14000   0.000858      
     15000   -0.000230     15000   0.000408      15000   0.000036      
     16000   -0.000150     16000   0.000257      16000   0.000023      
     24000   -0.190000     24000   0.201015      24000   0.017605      
     25000   -0.010000     25000   0.010013      25000   0.000877      
     26000   -0.694480     26000   0.684101      26000   0.059912      
     28000   -0.100000     28000   0.093725      28000   0.008208      
********************************************************************************

********************************************************************************
  300 : Steel, Stainless 316 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.655E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000410      0.001900      0.000164      
  Si        14000        14000        0.005070      0.010048      0.000870      
  P         15031        15000        0.000230      0.000413      0.000036      
  S         16000        16000        0.000150      0.000260      0.000023      
  Cr        24000        24000        0.170000      0.181986      0.015751      
  Mn        25055        25000        0.010140      0.010274      0.000889      
  Fe        26000        26000        0.669000      0.666811      0.057714      
  Ni        28000        28000        0.120000      0.113803      0.009850      
  Mo        42000        42000        0.025000      0.014504      0.001255      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000410     6000    0.001900      6000    0.000164      
     14000   -0.005070     14000   0.010048      14000   0.000870      
     15031   -0.000230     15031   0.000413      15031   0.000036      
     16000   -0.000150     16000   0.000260      16000   0.000023      
     24000   -0.170000     24000   0.181986      24000   0.015751      
     25055   -0.010140     25055   0.010274      25055   0.000889      
     26000   -0.669000     26000   0.666811      26000   0.057714      
     28000   -0.120000     28000   0.113803      28000   0.009850      
     42000   -0.025000     42000   0.014504      42000   0.001255      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000410     6000    0.001900      6000    0.000164      
     14000   -0.005070     14000   0.010048      14000   0.000870      
     15000   -0.000230     15000   0.000413      15000   0.000036      
     16000   -0.000150     16000   0.000260      16000   0.000023      
     24000   -0.170000     24000   0.181986      24000   0.015751      
     25000   -0.010140     25000   0.010274      25000   0.000889      
     26000   -0.669000     26000   0.666811      26000   0.057714      
     28000   -0.120000     28000   0.113803      28000   0.009850      
     42000   -0.025000     42000   0.014504      42000   0.001255      
********************************************************************************

********************************************************************************
  301 : Steel, Stainless 316L 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.698E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000300      0.001384      0.000120      
  Si        14000        14000        0.010000      0.019722      0.001715      
  P         15031        15000        0.000450      0.000805      0.000070      
  S         16000        16000        0.000300      0.000518      0.000045      
  Cr        24000        24000        0.170000      0.181098      0.015751      
  Mn        25055        25000        0.020000      0.020165      0.001754      
  Fe        26000        26000        0.653950      0.648628      0.056416      
  Ni        28000        28000        0.120000      0.113247      0.009850      
  Mo        42000        42000        0.025000      0.014434      0.001255      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000300     6000    0.001384      6000    0.000120      
     14000   -0.010000     14000   0.019722      14000   0.001715      
     15031   -0.000450     15031   0.000805      15031   0.000070      
     16000   -0.000300     16000   0.000518      16000   0.000045      
     24000   -0.170000     24000   0.181098      24000   0.015751      
     25055   -0.020000     25055   0.020165      25055   0.001754      
     26000   -0.653950     26000   0.648628      26000   0.056416      
     28000   -0.120000     28000   0.113247      28000   0.009850      
     42000   -0.025000     42000   0.014434      42000   0.001255      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000300     6000    0.001384      6000    0.000120      
     14000   -0.010000     14000   0.019722      14000   0.001715      
     15000   -0.000450     15000   0.000805      15000   0.000070      
     16000   -0.000300     16000   0.000518      16000   0.000045      
     24000   -0.170000     24000   0.181098      24000   0.015751      
     25000   -0.020000     25000   0.020165      25000   0.001754      
     26000   -0.653950     26000   0.648628      26000   0.056416      
     28000   -0.120000     28000   0.113247      28000   0.009850      
     42000   -0.025000     42000   0.014434      42000   0.001255      
********************************************************************************

********************************************************************************
  302 : Steel, Stainless 321 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.816E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000800      0.003640      0.000321      
  Si        14000        14000        0.010000      0.019457      0.001715      
  P         15031        15000        0.000450      0.000794      0.000070      
  S         16000        16000        0.000300      0.000511      0.000045      
  Ti        22000        22000        0.001500      0.001712      0.000151      
  Cr        24000        24000        0.180000      0.189171      0.016678      
  Mn        25055        25000        0.020000      0.019893      0.001754      
  Fe        26000        26000        0.676950      0.662408      0.058400      
  Ni        28000        28000        0.110000      0.102413      0.009029      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000800     6000    0.003640      6000    0.000321      
     14000   -0.010000     14000   0.019457      14000   0.001715      
     15031   -0.000450     15031   0.000794      15031   0.000070      
     16000   -0.000300     16000   0.000511      16000   0.000045      
     22000   -0.001500     22000   0.001712      22000   0.000151      
     24000   -0.180000     24000   0.189171      24000   0.016678      
     25055   -0.020000     25055   0.019893      25055   0.001754      
     26000   -0.676950     26000   0.662408      26000   0.058400      
     28000   -0.110000     28000   0.102413      28000   0.009029      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000800     6000    0.003640      6000    0.000321      
     14000   -0.010000     14000   0.019457      14000   0.001715      
     15000   -0.000450     15000   0.000794      15000   0.000070      
     16000   -0.000300     16000   0.000511      16000   0.000045      
     22000   -0.001500     22000   0.001712      22000   0.000151      
     24000   -0.180000     24000   0.189171      24000   0.016678      
     25000   -0.020000     25000   0.019893      25000   0.001754      
     26000   -0.676950     26000   0.662408      26000   0.058400      
     28000   -0.110000     28000   0.102413      28000   0.009029      
********************************************************************************

********************************************************************************
  303 : Steel, Stainless 347 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 8.000000 
  Total atom density (atoms/b-cm) = 8.770E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000800      0.003659      0.000321      
  Si        14000        14000        0.010000      0.019559      0.001715      
  P         15031        15000        0.000450      0.000798      0.000070      
  S         16000        16000        0.000300      0.000514      0.000045      
  Cr        24000        24000        0.170000      0.179602      0.015751      
  Mn        25055        25000        0.020000      0.019998      0.001754      
  Fe        26000        26000        0.680450      0.669338      0.058702      
  Ni        28000        28000        0.110000      0.102952      0.009029      
  Nb        41093        41000        0.004000      0.002365      0.000207      
  Ta        73181        73000        0.004000      0.001214      0.000106      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000800     6000    0.003659      6000    0.000321      
     14000   -0.010000     14000   0.019559      14000   0.001715      
     15031   -0.000450     15031   0.000798      15031   0.000070      
     16000   -0.000300     16000   0.000514      16000   0.000045      
     24000   -0.170000     24000   0.179602      24000   0.015751      
     25055   -0.020000     25055   0.019998      25055   0.001754      
     26000   -0.680450     26000   0.669338      26000   0.058702      
     28000   -0.110000     28000   0.102952      28000   0.009029      
     41093   -0.004000     41093   0.002365      41093   0.000207      
     73181   -0.004000     73181   0.001214      73181   0.000106      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000800     6000    0.003659      6000    0.000321      
     14000   -0.010000     14000   0.019559      14000   0.001715      
     15000   -0.000450     15000   0.000798      15000   0.000070      
     16000   -0.000300     16000   0.000514      16000   0.000045      
     24000   -0.170000     24000   0.179602      24000   0.015751      
     25000   -0.020000     25000   0.019998      25000   0.001754      
     26000   -0.680450     26000   0.669338      26000   0.058702      
     28000   -0.110000     28000   0.102952      28000   0.009029      
     41000   -0.004000     41000   0.002365      41000   0.000207      
     73000   -0.004000     73000   0.001214      73000   0.000106      
********************************************************************************

********************************************************************************
  304 : Steel, Stainless 409 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.800000 
  Total atom density (atoms/b-cm) = 8.604E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.000790      0.003591      0.000309      
  Si        14000        14000        0.009830      0.019108      0.001644      
  P         15031        15000        0.000440      0.000776      0.000067      
  S         16000        16000        0.000440      0.000749      0.000064      
  Ti        22000        22000        0.007370      0.008406      0.000723      
  Cr        24000        24000        0.111300      0.116862      0.010055      
  Mn        25055        25000        0.009830      0.009769      0.000840      
  Fe        26000        26000        0.860000      0.840740      0.072337      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000790     6000    0.003591      6000    0.000309      
     14000   -0.009830     14000   0.019108      14000   0.001644      
     15031   -0.000440     15031   0.000776      15031   0.000067      
     16000   -0.000440     16000   0.000749      16000   0.000064      
     22000   -0.007370     22000   0.008406      22000   0.000723      
     24000   -0.111300     24000   0.116862      24000   0.010055      
     25055   -0.009830     25055   0.009769      25055   0.000840      
     26000   -0.860000     26000   0.840740      26000   0.072337      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.000790     6000    0.003591      6000    0.000309      
     14000   -0.009830     14000   0.019108      14000   0.001644      
     15000   -0.000440     15000   0.000776      15000   0.000067      
     16000   -0.000440     16000   0.000749      16000   0.000064      
     22000   -0.007370     22000   0.008406      22000   0.000723      
     24000   -0.111300     24000   0.116862      24000   0.010055      
     25000   -0.009830     25000   0.009769      25000   0.000840      
     26000   -0.860000     26000   0.840740      26000   0.072337      
********************************************************************************

********************************************************************************
  305 : Steel, Stainless 440 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 7.800000 
  Total atom density (atoms/b-cm) = 8.682E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.006750      0.030406      0.002640      
  Si        14000        14000        0.006500      0.012521      0.001087      
  P         15031        15000        0.000260      0.000454      0.000039      
  S         16000        16000        0.000200      0.000337      0.000029      
  Cr        24000        24000        0.170000      0.176887      0.015358      
  Mn        25055        25000        0.006500      0.006401      0.000556      
  Fe        26000        26000        0.795050      0.770242      0.066874      
  Mo        42000        42000        0.004880      0.002752      0.000239      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.006750     6000    0.030406      6000    0.002640      
     14000   -0.006500     14000   0.012521      14000   0.001087      
     15031   -0.000260     15031   0.000454      15031   0.000039      
     16000   -0.000200     16000   0.000337      16000   0.000029      
     24000   -0.170000     24000   0.176887      24000   0.015358      
     25055   -0.006500     25055   0.006401      25055   0.000556      
     26000   -0.795050     26000   0.770242      26000   0.066874      
     42000   -0.004880     42000   0.002752      42000   0.000239      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.006750     6000    0.030406      6000    0.002640      
     14000   -0.006500     14000   0.012521      14000   0.001087      
     15000   -0.000260     15000   0.000454      15000   0.000039      
     16000   -0.000200     16000   0.000337      16000   0.000029      
     24000   -0.170000     24000   0.176887      24000   0.015358      
     25000   -0.006500     25000   0.006401      25000   0.000556      
     26000   -0.795050     26000   0.770242      26000   0.066874      
     42000   -0.004880     42000   0.002752      42000   0.000239      
********************************************************************************

********************************************************************************
  306 : Sterotex 
  Source = PNNL-15870 Rev. 1 
  Formula = (C17H35CO2)3-C3H5 
  Molecular weight (g/mole) = 891.4797 
  Density (g/cm3) = 0.862000 
  Total atom density (atoms/b-cm) = 1.007E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.124370      0.635838      0.064053      
  C         6000         6000         0.767948      0.329480      0.033191      
  O         8016         8000         0.107682      0.034682      0.003494      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.124370     1001    0.635838      1001    0.064053      
     6000    -0.767948     6000    0.329480      6000    0.033191      
     8016    -0.107682     8016    0.034682      8016    0.003494      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.124370     1000    0.635838      1000    0.064053      
     6000    -0.767948     6000    0.329480      6000    0.033191      
     8000    -0.107682     8000    0.034682      8000    0.003494      
********************************************************************************

********************************************************************************
  307 : Stilbene (trans-stilbene isomer) 
  Source = PNNL-15870 Rev. 1 
  Formula = C14H10 
  Molecular weight (g/mole) = 178.2292 
  Density (g/cm3) = 1.220000 
  Total atom density (atoms/b-cm) = 9.893E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.056553      0.416667      0.041222      
  C         6000         6000         0.943447      0.583333      0.057711      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.056553     1001    0.416667      1001    0.041222      
     6000    -0.943447     6000    0.583333      6000    0.057711      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.056553     1000    0.416667      1000    0.041222      
     6000    -0.943447     6000    0.583333      6000    0.057711      
********************************************************************************

********************************************************************************
  308 : Sulphur 
  Source = PNNL-15870 Rev. 1 
  Formula = S 
  Molecular weight (g/mole) = 32.065 
  Density (g/cm3) = 2.000000 
  Total atom density (atoms/b-cm) = 3.756E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  S         16000        16000        1.000000      1.000000      0.037562      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     16000   -1.000000     16000   1.000000      16000   0.037562      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     16000   -1.000000     16000   1.000000      16000   0.037562      
********************************************************************************

********************************************************************************
  309 : Tantalum 
  Source = PNNL-15870 Rev. 1 
  Formula = Ta 
  Molecular weight (g/mole) = 180.9479 
  Density (g/cm3) = 16.654000 
  Total atom density (atoms/b-cm) = 5.543E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ta        73181        73000        1.000000      1.000000      0.055426      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     73181   -1.000000     73181   1.000000      73181   0.055426      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     73000   -1.000000     73000   1.000000      73000   0.055426      
********************************************************************************

********************************************************************************
  310 : Thorium 
  Source = PNNL-15870 Rev. 1 
  Formula = Th 
  Molecular weight (g/mole) = 232.0381 
  Density (g/cm3) = 11.720000 
  Total atom density (atoms/b-cm) = 3.042E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Th        90232        90000        1.000000      1.000000      0.030417      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     90232   -1.000000     90232   1.000000      90232   0.030417      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     90000   -1.000000     90000   1.000000      90000   0.030417      
********************************************************************************

********************************************************************************
  311 : Thorium Dioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = ThO2 
  Molecular weight (g/mole) = 264.0369 
  Density (g/cm3) = 10.000000 
  Total atom density (atoms/b-cm) = 6.842E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.121191      0.666667      0.045616      
  Th        90232        90000        0.878809      0.333333      0.022808      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.121191     8016    0.666667      8016    0.045616      
     90232   -0.878809     90232   0.333333      90232   0.022808      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.121191     8000    0.666667      8000    0.045616      
     90000   -0.878809     90000   0.333333      90000   0.022808      
********************************************************************************

********************************************************************************
  312 : Tin 
  Source = PNNL-15870 Rev. 1 
  Formula = Sn 
  Molecular weight (g/mole) = 118.71 
  Density (g/cm3) = 7.310000 
  Total atom density (atoms/b-cm) = 3.708E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Sn        50000        50000        1.000000      1.000000      0.037084      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     50000   -1.000000     50000   1.000000      50000   0.037084      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     50000   -1.000000     50000   1.000000      50000   0.037084      
********************************************************************************

********************************************************************************
  313 : Tissue Equivalent, MS20 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.000000 
  Total atom density (atoms/b-cm) = 8.879E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.081192      0.546359      0.048510      
  C         6000         6000         0.583442      0.329480      0.029254      
  N         7014         7000         0.017798      0.008619      0.000765      
  O         8016         8000         0.186381      0.079013      0.007015      
  Mg        12000        12000        0.130287      0.036358      0.003228      
  Cl        17000        17000        0.000900      0.000172      0.000015      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.081192     1001    0.546359      1001    0.048510      
     6000    -0.583442     6000    0.329480      6000    0.029254      
     7014    -0.017798     7014    0.008619      7014    0.000765      
     8016    -0.186381     8016    0.079013      8016    0.007015      
     12000   -0.130287     12000   0.036358      12000   0.003228      
     17000   -0.000900     17000   0.000172      17000   0.000015      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.081192     1000    0.546359      1000    0.048510      
     6000    -0.583442     6000    0.329480      6000    0.029254      
     7000    -0.017798     7000    0.008619      7000    0.000765      
     8000    -0.186381     8000    0.079013      8000    0.007015      
     12000   -0.130287     12000   0.036358      12000   0.003228      
     17000   -0.000900     17000   0.000172      17000   0.000015      
********************************************************************************

********************************************************************************
  314 : Tissue Equivalent-Gas, methane based  (TEG: MB) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.001064 
  Total atom density (atoms/b-cm) = 1.070E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101869      0.605249      0.000065      
  C         6000         6000         0.456179      0.227454      0.000024      
  N         7014         7000         0.035172      0.015038      0.000002      
  O         8016         8000         0.406780      0.152259      0.000016      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101869     1001    0.605249      1001    0.000065      
     6000    -0.456179     6000    0.227454      6000    0.000024      
     7014    -0.035172     7014    0.015038      7014    0.000002      
     8016    -0.406780     8016    0.152259      8016    0.000016      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101869     1000    0.605249      1000    0.000065      
     6000    -0.456179     6000    0.227454      6000    0.000024      
     7000    -0.035172     7000    0.015038      7000    0.000002      
     8000    -0.406780     8000    0.152259      8000    0.000016      
********************************************************************************

********************************************************************************
  315 : Tissue Equivalent-Gas, propane based  (TEG: PB) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.001826 
  Total atom density (atoms/b-cm) = 1.870E-04 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.102672      0.598952      0.000112      
  C         6000         6000         0.568940      0.278531      0.000052      
  N         7014         7000         0.035022      0.014702      0.000003      
  O         8016         8000         0.293366      0.107815      0.000020      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.102672     1001    0.598952      1001    0.000112      
     6000    -0.568940     6000    0.278531      6000    0.000052      
     7014    -0.035022     7014    0.014702      7014    0.000003      
     8016    -0.293366     8016    0.107815      8016    0.000020      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.102672     1000    0.598952      1000    0.000112      
     6000    -0.568940     6000    0.278531      6000    0.000052      
     7000    -0.035022     7000    0.014702      7000    0.000003      
     8000    -0.293366     8000    0.107815      8000    0.000020      
********************************************************************************

********************************************************************************
  316 : Tissue, Adipose (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.920000 
  Total atom density (atoms/b-cm) = 1.035E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.119477      0.634643      0.065673      
  C         6000         6000         0.637240      0.284063      0.029395      
  N         7014         7000         0.007970      0.003047      0.000315      
  O         8016         8000         0.232333      0.077748      0.008045      
  Na        11023        11000        0.000500      0.000116      0.000012      
  Mg        12000        12000        0.000020      0.000004      0.000000      
  P         15031        15000        0.000160      0.000028      0.000003      
  S         16000        16000        0.000730      0.000122      0.000013      
  Cl        17000        17000        0.001190      0.000180      0.000019      
  K         19000        19000        0.000320      0.000044      0.000005      
  Ca        20000        20000        0.000020      0.000003      0.000000      
  Fe        26000        26000        0.000020      0.000002      0.000000      
  Zn        30000        30000        0.000020      0.000002      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.119477     1001    0.634643      1001    0.065673      
     6000    -0.637240     6000    0.284063      6000    0.029395      
     7014    -0.007970     7014    0.003047      7014    0.000315      
     8016    -0.232333     8016    0.077748      8016    0.008045      
     11023   -0.000500     11023   0.000116      11023   0.000012      
     12000   -0.000020     12000   0.000004      12000   0.000000      
     15031   -0.000160     15031   0.000028      15031   0.000003      
     16000   -0.000730     16000   0.000122      16000   0.000013      
     17000   -0.001190     17000   0.000180      17000   0.000019      
     19000   -0.000320     19000   0.000044      19000   0.000005      
     20000   -0.000020     20000   0.000003      20000   0.000000      
     26000   -0.000020     26000   0.000002      26000   0.000000      
     30000   -0.000020     30000   0.000002      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.119477     1000    0.634643      1000    0.065673      
     6000    -0.637240     6000    0.284063      6000    0.029395      
     7000    -0.007970     7000    0.003047      7000    0.000315      
     8000    -0.232333     8000    0.077748      8000    0.008045      
     11000   -0.000500     11000   0.000116      11000   0.000012      
     12000   -0.000020     12000   0.000004      12000   0.000000      
     15000   -0.000160     15000   0.000028      15000   0.000003      
     16000   -0.000730     16000   0.000122      16000   0.000013      
     17000   -0.001190     17000   0.000180      17000   0.000019      
     19000   -0.000320     19000   0.000044      19000   0.000005      
     20000   -0.000020     20000   0.000003      20000   0.000000      
     26000   -0.000020     26000   0.000002      26000   0.000000      
     30000   -0.000020     30000   0.000002      30000   0.000000      
********************************************************************************

********************************************************************************
  317 : Tissue, Breast 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.020000 
  Total atom density (atoms/b-cm) = 1.032E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.106000      0.625781      0.064598      
  C         6000         6000         0.332000      0.164483      0.016979      
  N         7014         7000         0.030000      0.012745      0.001316      
  O         8016         8000         0.527000      0.196001      0.020233      
  Na        11023        11000        0.001000      0.000259      0.000027      
  P         15031        15000        0.001000      0.000192      0.000020      
  S         16000        16000        0.002000      0.000371      0.000038      
  Cl        17000        17000        0.001000      0.000168      0.000017      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.106000     1001    0.625781      1001    0.064598      
     6000    -0.332000     6000    0.164483      6000    0.016979      
     7014    -0.030000     7014    0.012745      7014    0.001316      
     8016    -0.527000     8016    0.196001      8016    0.020233      
     11023   -0.001000     11023   0.000259      11023   0.000027      
     15031   -0.001000     15031   0.000192      15031   0.000020      
     16000   -0.002000     16000   0.000371      16000   0.000038      
     17000   -0.001000     17000   0.000168      17000   0.000017      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.106000     1000    0.625781      1000    0.064598      
     6000    -0.332000     6000    0.164483      6000    0.016979      
     7000    -0.030000     7000    0.012745      7000    0.001316      
     8000    -0.527000     8000    0.196001      8000    0.020233      
     11000   -0.001000     11000   0.000259      11000   0.000027      
     15000   -0.001000     15000   0.000192      15000   0.000020      
     16000   -0.002000     16000   0.000371      16000   0.000038      
     17000   -0.001000     17000   0.000168      17000   0.000017      
********************************************************************************

********************************************************************************
  318 : Tissue, Lung (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.050000 
  Total atom density (atoms/b-cm) = 1.004E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101278      0.633136      0.063536      
  C         6000         6000         0.102310      0.053674      0.005386      
  N         7014         7000         0.028650      0.012889      0.001293      
  O         8016         8000         0.757072      0.298160      0.029921      
  Na        11023        11000        0.001840      0.000504      0.000051      
  Mg        12000        12000        0.000730      0.000189      0.000019      
  P         15031        15000        0.000800      0.000163      0.000016      
  S         16000        16000        0.002250      0.000442      0.000044      
  Cl        17000        17000        0.002660      0.000473      0.000047      
  K         19000        19000        0.001940      0.000313      0.000031      
  Ca        20000        20000        0.000090      0.000014      0.000001      
  Fe        26000        26000        0.000370      0.000042      0.000004      
  Zn        30000        30000        0.000010      0.000001      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101278     1001    0.633136      1001    0.063536      
     6000    -0.102310     6000    0.053674      6000    0.005386      
     7014    -0.028650     7014    0.012889      7014    0.001293      
     8016    -0.757072     8016    0.298160      8016    0.029921      
     11023   -0.001840     11023   0.000504      11023   0.000051      
     12000   -0.000730     12000   0.000189      12000   0.000019      
     15031   -0.000800     15031   0.000163      15031   0.000016      
     16000   -0.002250     16000   0.000442      16000   0.000044      
     17000   -0.002660     17000   0.000473      17000   0.000047      
     19000   -0.001940     19000   0.000313      19000   0.000031      
     20000   -0.000090     20000   0.000014      20000   0.000001      
     26000   -0.000370     26000   0.000042      26000   0.000004      
     30000   -0.000010     30000   0.000001      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101278     1000    0.633136      1000    0.063536      
     6000    -0.102310     6000    0.053674      6000    0.005386      
     7000    -0.028650     7000    0.012889      7000    0.001293      
     8000    -0.757072     8000    0.298160      8000    0.029921      
     11000   -0.001840     11000   0.000504      11000   0.000051      
     12000   -0.000730     12000   0.000189      12000   0.000019      
     15000   -0.000800     15000   0.000163      15000   0.000016      
     16000   -0.002250     16000   0.000442      16000   0.000044      
     17000   -0.002660     17000   0.000473      17000   0.000047      
     19000   -0.001940     19000   0.000313      19000   0.000031      
     20000   -0.000090     20000   0.000014      20000   0.000001      
     26000   -0.000370     26000   0.000042      26000   0.000004      
     30000   -0.000010     30000   0.000001      30000   0.000000      
********************************************************************************

********************************************************************************
  319 : Tissue, Ovary 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.050000 
  Total atom density (atoms/b-cm) = 1.024E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.105000      0.643230      0.065871      
  C         6000         6000         0.093000      0.047811      0.004896      
  N         7014         7000         0.024000      0.010580      0.001083      
  O         8016         8000         0.768000      0.296394      0.030353      
  Na        11023        11000        0.002000      0.000537      0.000055      
  P         15031        15000        0.002000      0.000399      0.000041      
  S         16000        16000        0.002000      0.000385      0.000039      
  Cl        17000        17000        0.002000      0.000348      0.000036      
  K         19000        19000        0.002000      0.000316      0.000032      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.105000     1001    0.643230      1001    0.065871      
     6000    -0.093000     6000    0.047811      6000    0.004896      
     7014    -0.024000     7014    0.010580      7014    0.001083      
     8016    -0.768000     8016    0.296394      8016    0.030353      
     11023   -0.002000     11023   0.000537      11023   0.000055      
     15031   -0.002000     15031   0.000399      15031   0.000041      
     16000   -0.002000     16000   0.000385      16000   0.000039      
     17000   -0.002000     17000   0.000348      17000   0.000036      
     19000   -0.002000     19000   0.000316      19000   0.000032      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.105000     1000    0.643230      1000    0.065871      
     6000    -0.093000     6000    0.047811      6000    0.004896      
     7000    -0.024000     7000    0.010580      7000    0.001083      
     8000    -0.768000     8000    0.296394      8000    0.030353      
     11000   -0.002000     11000   0.000537      11000   0.000055      
     15000   -0.002000     15000   0.000399      15000   0.000041      
     16000   -0.002000     16000   0.000385      16000   0.000039      
     17000   -0.002000     17000   0.000348      17000   0.000036      
     19000   -0.002000     19000   0.000316      19000   0.000032      
********************************************************************************

********************************************************************************
  320 : Tissue, Soft (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.000000 
  Total atom density (atoms/b-cm) = 9.901E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.104472      0.630454      0.062419      
  C         6000         6000         0.232190      0.117588      0.011642      
  N         7014         7000         0.024880      0.010804      0.001070      
  O         8016         8000         0.630238      0.239601      0.023722      
  Na        11023        11000        0.001130      0.000299      0.000030      
  Mg        12000        12000        0.000130      0.000033      0.000003      
  P         15031        15000        0.001330      0.000261      0.000026      
  S         16000        16000        0.001990      0.000377      0.000037      
  Cl        17000        17000        0.001340      0.000230      0.000023      
  K         19000        19000        0.001990      0.000310      0.000031      
  Ca        20000        20000        0.000230      0.000035      0.000003      
  Fe        26000        26000        0.000050      0.000005      0.000001      
  Zn        30000        30000        0.000030      0.000003      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.104472     1001    0.630454      1001    0.062419      
     6000    -0.232190     6000    0.117588      6000    0.011642      
     7014    -0.024880     7014    0.010804      7014    0.001070      
     8016    -0.630238     8016    0.239601      8016    0.023722      
     11023   -0.001130     11023   0.000299      11023   0.000030      
     12000   -0.000130     12000   0.000033      12000   0.000003      
     15031   -0.001330     15031   0.000261      15031   0.000026      
     16000   -0.001990     16000   0.000377      16000   0.000037      
     17000   -0.001340     17000   0.000230      17000   0.000023      
     19000   -0.001990     19000   0.000310      19000   0.000031      
     20000   -0.000230     20000   0.000035      20000   0.000003      
     26000   -0.000050     26000   0.000005      26000   0.000001      
     30000   -0.000030     30000   0.000003      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.104472     1000    0.630454      1000    0.062419      
     6000    -0.232190     6000    0.117588      6000    0.011642      
     7000    -0.024880     7000    0.010804      7000    0.001070      
     8000    -0.630238     8000    0.239601      8000    0.023722      
     11000   -0.001130     11000   0.000299      11000   0.000030      
     12000   -0.000130     12000   0.000033      12000   0.000003      
     15000   -0.001330     15000   0.000261      15000   0.000026      
     16000   -0.001990     16000   0.000377      16000   0.000037      
     17000   -0.001340     17000   0.000230      17000   0.000023      
     19000   -0.001990     19000   0.000310      19000   0.000031      
     20000   -0.000230     20000   0.000035      20000   0.000003      
     26000   -0.000050     26000   0.000005      26000   0.000001      
     30000   -0.000030     30000   0.000003      30000   0.000000      
********************************************************************************

********************************************************************************
  321 : Tissue, Soft (ICRU four component) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.000000 
  Total atom density (atoms/b-cm) = 9.581E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.101172      0.630936      0.060447      
  C         6000         6000         0.111000      0.058092      0.005566      
  N         7014         7000         0.026000      0.011668      0.001118      
  O         8016         8000         0.761828      0.299304      0.028675      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.101172     1001    0.630936      1001    0.060447      
     6000    -0.111000     6000    0.058092      6000    0.005566      
     7014    -0.026000     7014    0.011668      7014    0.001118      
     8016    -0.761828     8016    0.299304      8016    0.028675      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.101172     1000    0.630936      1000    0.060447      
     6000    -0.111000     6000    0.058092      6000    0.005566      
     7000    -0.026000     7000    0.011668      7000    0.001118      
     8000    -0.761828     8000    0.299304      8000    0.028675      
********************************************************************************

********************************************************************************
  322 : Tissue, Testes (ICRP) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.040000 
  Total atom density (atoms/b-cm) = 1.009E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.104166      0.641360      0.064726      
  C         6000         6000         0.092270      0.047676      0.004811      
  N         7014         7000         0.019940      0.008835      0.000892      
  O         8016         8000         0.773884      0.300181      0.030294      
  Na        11023        11000        0.002260      0.000610      0.000062      
  Mg        12000        12000        0.000110      0.000028      0.000003      
  P         15031        15000        0.001250      0.000250      0.000025      
  S         16000        16000        0.001460      0.000283      0.000029      
  Cl        17000        17000        0.002440      0.000427      0.000043      
  K         19000        19000        0.002080      0.000330      0.000033      
  Ca        20000        20000        0.000100      0.000015      0.000002      
  Fe        26000        26000        0.000020      0.000002      0.000000      
  Zn        30000        30000        0.000020      0.000002      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.104166     1001    0.641360      1001    0.064726      
     6000    -0.092270     6000    0.047676      6000    0.004811      
     7014    -0.019940     7014    0.008835      7014    0.000892      
     8016    -0.773884     8016    0.300181      8016    0.030294      
     11023   -0.002260     11023   0.000610      11023   0.000062      
     12000   -0.000110     12000   0.000028      12000   0.000003      
     15031   -0.001250     15031   0.000250      15031   0.000025      
     16000   -0.001460     16000   0.000283      16000   0.000029      
     17000   -0.002440     17000   0.000427      17000   0.000043      
     19000   -0.002080     19000   0.000330      19000   0.000033      
     20000   -0.000100     20000   0.000015      20000   0.000002      
     26000   -0.000020     26000   0.000002      26000   0.000000      
     30000   -0.000020     30000   0.000002      30000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.104166     1000    0.641360      1000    0.064726      
     6000    -0.092270     6000    0.047676      6000    0.004811      
     7000    -0.019940     7000    0.008835      7000    0.000892      
     8000    -0.773884     8000    0.300181      8000    0.030294      
     11000   -0.002260     11000   0.000610      11000   0.000062      
     12000   -0.000110     12000   0.000028      12000   0.000003      
     15000   -0.001250     15000   0.000250      15000   0.000025      
     16000   -0.001460     16000   0.000283      16000   0.000029      
     17000   -0.002440     17000   0.000427      17000   0.000043      
     19000   -0.002080     19000   0.000330      19000   0.000033      
     20000   -0.000100     20000   0.000015      20000   0.000002      
     26000   -0.000020     26000   0.000002      26000   0.000000      
     30000   -0.000020     30000   0.000002      30000   0.000000      
********************************************************************************

********************************************************************************
  323 : Tissue, Testis (ICRU) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.040000 
  Total atom density (atoms/b-cm) = 1.021E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.106000      0.645178      0.065865      
  C         6000         6000         0.099000      0.050568      0.005162      
  N         7014         7000         0.020000      0.008760      0.000894      
  O         8016         8000         0.766000      0.293720      0.029985      
  Na        11023        11000        0.002000      0.000534      0.000054      
  P         15031        15000        0.001000      0.000198      0.000020      
  S         16000        16000        0.002000      0.000383      0.000039      
  Cl        17000        17000        0.002000      0.000346      0.000035      
  K         19000        19000        0.002000      0.000314      0.000032      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.106000     1001    0.645178      1001    0.065865      
     6000    -0.099000     6000    0.050568      6000    0.005162      
     7014    -0.020000     7014    0.008760      7014    0.000894      
     8016    -0.766000     8016    0.293720      8016    0.029985      
     11023   -0.002000     11023   0.000534      11023   0.000054      
     15031   -0.001000     15031   0.000198      15031   0.000020      
     16000   -0.002000     16000   0.000383      16000   0.000039      
     17000   -0.002000     17000   0.000346      17000   0.000035      
     19000   -0.002000     19000   0.000314      19000   0.000032      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.106000     1000    0.645178      1000    0.065865      
     6000    -0.099000     6000    0.050568      6000    0.005162      
     7000    -0.020000     7000    0.008760      7000    0.000894      
     8000    -0.766000     8000    0.293720      8000    0.029985      
     11000   -0.002000     11000   0.000534      11000   0.000054      
     15000   -0.001000     15000   0.000198      15000   0.000020      
     16000   -0.002000     16000   0.000383      16000   0.000039      
     17000   -0.002000     17000   0.000346      17000   0.000035      
     19000   -0.002000     19000   0.000314      19000   0.000032      
********************************************************************************

********************************************************************************
  324 : Titanium 
  Source = PNNL-15870 Rev. 1 
  Formula = Ti 
  Molecular weight (g/mole) = 47.867 
  Density (g/cm3) = 4.540000 
  Total atom density (atoms/b-cm) = 5.712E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Ti        22000        22000        1.000000      1.000000      0.057118      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     22000   -1.000000     22000   1.000000      22000   0.057118      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     22000   -1.000000     22000   1.000000      22000   0.057118      
********************************************************************************

********************************************************************************
  325 : Titanium alloy, grade 5 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 4.430000 
  Total atom density (atoms/b-cm) = 5.878E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.000110      0.004953      0.000291      
  C         6000         6000         0.000570      0.002154      0.000127      
  N         7014         7000         0.000210      0.000680      0.000040      
  O         8016         8000         0.001410      0.004000      0.000235      
  Al        13027        13000        0.061250      0.103023      0.006056      
  Ti        22000        22000        0.893630      0.847256      0.049805      
  V         23000        23000        0.040000      0.035635      0.002095      
  Fe        26000        26000        0.002830      0.002300      0.000135      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.000110     1001    0.004953      1001    0.000291      
     6000    -0.000570     6000    0.002154      6000    0.000127      
     7014    -0.000210     7014    0.000680      7014    0.000040      
     8016    -0.001410     8016    0.004000      8016    0.000235      
     13027   -0.061250     13027   0.103023      13027   0.006056      
     22000   -0.893630     22000   0.847256      22000   0.049805      
     23000   -0.040000     23000   0.035635      23000   0.002095      
     26000   -0.002830     26000   0.002300      26000   0.000135      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.000110     1000    0.004953      1000    0.000291      
     6000    -0.000570     6000    0.002154      6000    0.000127      
     7000    -0.000210     7000    0.000680      7000    0.000040      
     8000    -0.001410     8000    0.004000      8000    0.000235      
     13000   -0.061250     13000   0.103023      13000   0.006056      
     22000   -0.893630     22000   0.847256      22000   0.049805      
     23000   -0.040000     23000   0.035635      23000   0.002095      
     26000   -0.002830     26000   0.002300      26000   0.000135      
********************************************************************************

********************************************************************************
  326 : Titanium Dioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = TiO2 
  Molecular weight (g/mole) = 79.8658 
  Density (g/cm3) = 4.260000 
  Total atom density (atoms/b-cm) = 9.636E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.400592      0.666606      0.064233      
  Ti        22000        22000        0.599408      0.333394      0.032125      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.400592     8016    0.666606      8016    0.064233      
     22000   -0.599408     22000   0.333394      22000   0.032125      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.400592     8000    0.666606      8000    0.064233      
     22000   -0.599408     22000   0.333394      22000   0.032125      
********************************************************************************

********************************************************************************
  327 : Titanium Hydride 
  Source = PNNL-15870 Rev. 1 
  Formula = TiH2 
  Molecular weight (g/mole) = 49.88288 
  Density (g/cm3) = 3.750000 
  Total atom density (atoms/b-cm) = 1.358E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.040412      0.666667      0.090544      
  Ti        22000        22000        0.959588      0.333333      0.045272      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.040412     1001    0.666667      1001    0.090544      
     22000   -0.959588     22000   0.333333      22000   0.045272      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.040412     1000    0.666667      1000    0.090544      
     22000   -0.959588     22000   0.333333      22000   0.045272      
********************************************************************************

********************************************************************************
  328 : Toluene 
  Source = PNNL-15870 Rev. 1 
  Formula = C7H8 
  Molecular weight (g/mole) = 92.13842 
  Density (g/cm3) = 0.866900 
  Total atom density (atoms/b-cm) = 8.499E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.087510      0.533317      0.045326      
  C         6000         6000         0.912490      0.466683      0.039662      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.087510     1001    0.533317      1001    0.045326      
     6000    -0.912490     6000    0.466683      6000    0.039662      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.087510     1000    0.533317      1000    0.045326      
     6000    -0.912490     6000    0.466683      6000    0.039662      
********************************************************************************

********************************************************************************
  329 : Tributyl Borate 
  Source = PNNL-15870 Rev. 1 
  Formula = B(OC4H9)3 
  Molecular weight (g/mole) = 230.15198 
  Density (g/cm3) = 0.864000 
  Total atom density (atoms/b-cm) = 9.721E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.118245      0.627907      0.061040      
  B         -            5000         0.046973      0.023256      0.002261      
  C         6000         6000         0.626231      0.279070      0.027129      
  O         8016         8000         0.208550      0.069767      0.006782      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.118245     1001    0.627907      1001    0.061040      
     -       -0.046973     -       0.023256      -       0.002261      
     6000    -0.626231     6000    0.279070      6000    0.027129      
     8016    -0.208550     8016    0.069767      8016    0.006782      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.118245     1000    0.627907      1000    0.061040      
     5000    -0.046973     5000    0.023256      5000    0.002261      
     6000    -0.626231     6000    0.279070      6000    0.027129      
     8000    -0.208550     8000    0.069767      8000    0.006782      
********************************************************************************

********************************************************************************
  330 : Tributyl Phosphate (TBP) 
  Source = PNNL-15870 Rev. 1 
  Formula = (C4H9)3PO4 
  Molecular weight (g/mole) = 266.314141 
  Density (g/cm3) = 0.972400 
  Total atom density (atoms/b-cm) = 9.675E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.102189      0.613636      0.059370      
  C         6000         6000         0.541197      0.272727      0.026387      
  O         8016         8000         0.240309      0.090909      0.008796      
  P         15031        15000        0.116305      0.022727      0.002199      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.102189     1001    0.613636      1001    0.059370      
     6000    -0.541197     6000    0.272727      6000    0.026387      
     8016    -0.240309     8016    0.090909      8016    0.008796      
     15031   -0.116305     15031   0.022727      15031   0.002199      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.102189     1000    0.613636      1000    0.059370      
     6000    -0.541197     6000    0.272727      6000    0.026387      
     8000    -0.240309     8000    0.090909      8000    0.008796      
     15000   -0.116305     15000   0.022727      15000   0.002199      
********************************************************************************

********************************************************************************
  331 : Tungsten 
  Source = PNNL-15870 Rev. 1 
  Formula = W 
  Molecular weight (g/mole) = 183.84 
  Density (g/cm3) = 19.300000 
  Total atom density (atoms/b-cm) = 6.322E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  W         74000        74000        1.000000      1.000000      0.063222      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     74000   -1.000000     74000   1.000000      74000   0.063222      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     74000   -1.000000     74000   1.000000      74000   0.063222      
********************************************************************************

********************************************************************************
  332 : Uranium Carbide 
  Source = PNNL-15870 Rev. 1 
  Formula = UC 
  Molecular weight (g/mole) = 249.9687908998 
  Density (g/cm3) = 13.630000 
  Total atom density (atoms/b-cm) = 6.567E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.048049      0.500000      0.032837      
  U-234     92234        92000        0.000254      0.000136      0.000009      
  U-235     92235        92000        0.028559      0.015186      0.000997      
  U-236     92236        92000        0.000131      0.000070      0.000005      
  U-238     92238        92000        0.923007      0.484609      0.031826      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.048049     6000    0.500000      6000    0.032837      
     92234   -0.000254     92234   0.000136      92234   0.000009      
     92235   -0.028559     92235   0.015186      92235   0.000997      
     92236   -0.000131     92236   0.000070      92236   0.000005      
     92238   -0.923007     92238   0.484609      92238   0.031826      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.048049     6000    0.500000      6000    0.032837      
     92000   -0.000254     92000   0.000136      92000   0.000009      
     92000   -0.028559     92000   0.015186      92000   0.000997      
     92000   -0.000131     92000   0.000070      92000   0.000005      
     92000   -0.923007     92000   0.484609      92000   0.031826      
********************************************************************************

********************************************************************************
  333 : Uranium Dicarbide 
  Source = PNNL-15870 Rev. 1 
  Formula = UC2 
  Molecular weight (g/mole) = 261.9794908998 
  Density (g/cm3) = 11.280000 
  Total atom density (atoms/b-cm) = 7.779E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         0.091692      0.666667      0.051859      
  U-234     92234        92000        0.000243      0.000090      0.000007      
  U-235     92235        92000        0.027249      0.010124      0.000788      
  U-236     92236        92000        0.000125      0.000046      0.000004      
  U-238     92238        92000        0.880691      0.323072      0.025131      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.091692     6000    0.666667      6000    0.051859      
     92234   -0.000243     92234   0.000090      92234   0.000007      
     92235   -0.027249     92235   0.010124      92235   0.000788      
     92236   -0.000125     92236   0.000046      92236   0.000004      
     92238   -0.880691     92238   0.323072      92238   0.025131      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.091692     6000    0.666667      6000    0.051859      
     92000   -0.000243     92000   0.000090      92000   0.000007      
     92000   -0.027249     92000   0.010124      92000   0.000788      
     92000   -0.000125     92000   0.000046      92000   0.000004      
     92000   -0.880691     92000   0.323072      92000   0.025131      
********************************************************************************

********************************************************************************
  334 : Uranium Dioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = UO2 
  Molecular weight (g/mole) = 269.9568908998 
  Density (g/cm3) = 10.960000 
  Total atom density (atoms/b-cm) = 7.335E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.118533      0.666667      0.048899      
  U-234     92234        92000        0.000235      0.000090      0.000007      
  U-235     92235        92000        0.026444      0.010124      0.000743      
  U-236     92236        92000        0.000122      0.000046      0.000003      
  U-238     92238        92000        0.854666      0.323072      0.023697      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.118533     8016    0.666667      8016    0.048899      
     92234   -0.000235     92234   0.000090      92234   0.000007      
     92235   -0.026444     92235   0.010124      92235   0.000743      
     92236   -0.000122     92236   0.000046      92236   0.000003      
     92238   -0.854666     92238   0.323072      92238   0.023697      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.118533     8000    0.666667      8000    0.048899      
     92000   -0.000235     92000   0.000090      92000   0.000007      
     92000   -0.026444     92000   0.010124      92000   0.000743      
     92000   -0.000122     92000   0.000046      92000   0.000003      
     92000   -0.854666     92000   0.323072      92000   0.023697      
********************************************************************************

********************************************************************************
  335 : Uranium Hexafluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = UF6 
  Molecular weight (g/mole) = 351.9485100998 
  Density (g/cm3) = 4.680000 
  Total atom density (atoms/b-cm) = 5.606E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.323884      0.857143      0.048047      
  U-234     92234        92000        0.000181      0.000039      0.000002      
  U-235     92235        92000        0.020283      0.004339      0.000243      
  U-236     92236        92000        0.000093      0.000020      0.000001      
  U-238     92238        92000        0.655559      0.138460      0.007761      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.323884     9019    0.857143      9019    0.048047      
     92234   -0.000181     92234   0.000039      92234   0.000002      
     92235   -0.020283     92235   0.004339      92235   0.000243      
     92236   -0.000093     92236   0.000020      92236   0.000001      
     92238   -0.655559     92238   0.138460      92238   0.007761      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.323884     9000    0.857143      9000    0.048047      
     92000   -0.000181     92000   0.000039      92000   0.000002      
     92000   -0.020283     92000   0.004339      92000   0.000243      
     92000   -0.000093     92000   0.000020      92000   0.000001      
     92000   -0.655559     92000   0.138460      92000   0.007761      
********************************************************************************

********************************************************************************
  336 : Uranium Hydride 
  Source = PNNL-15870 Rev. 1 
  Formula = UH3 
  Molecular weight (g/mole) = 240.9819108998 
  Density (g/cm3) = 11.100000 
  Total atom density (atoms/b-cm) = 1.110E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.012548      0.750000      0.083217      
  U-234     92234        92000        0.000264      0.000068      0.000008      
  U-235     92235        92000        0.029624      0.007593      0.000842      
  U-236     92236        92000        0.000136      0.000035      0.000004      
  U-238     92238        92000        0.957429      0.242304      0.026885      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.012548     1001    0.750000      1001    0.083217      
     92234   -0.000264     92234   0.000068      92234   0.000008      
     92235   -0.029624     92235   0.007593      92235   0.000842      
     92236   -0.000136     92236   0.000035      92236   0.000004      
     92238   -0.957429     92238   0.242304      92238   0.026885      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.012548     1000    0.750000      1000    0.083217      
     92000   -0.000264     92000   0.000068      92000   0.000008      
     92000   -0.029624     92000   0.007593      92000   0.000842      
     92000   -0.000136     92000   0.000035      92000   0.000004      
     92000   -0.957429     92000   0.242304      92000   0.026885      
********************************************************************************

********************************************************************************
  337 : Uranium Nitride 
  Source = PNNL-15870 Rev. 1 
  Formula = UN 
  Molecular weight (g/mole) = 251.9647908998 
  Density (g/cm3) = 14.310000 
  Total atom density (atoms/b-cm) = 6.840E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         0.055590      0.500000      0.034202      
  U-234     92234        92000        0.000252      0.000136      0.000009      
  U-235     92235        92000        0.028332      0.015186      0.001039      
  U-236     92236        92000        0.000130      0.000070      0.000005      
  U-238     92238        92000        0.915695      0.484609      0.033149      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -0.055590     7014    0.500000      7014    0.034202      
     92234   -0.000252     92234   0.000136      92234   0.000009      
     92235   -0.028332     92235   0.015186      92235   0.001039      
     92236   -0.000130     92236   0.000070      92236   0.000005      
     92238   -0.915695     92238   0.484609      92238   0.033149      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -0.055590     7000    0.500000      7000    0.034202      
     92000   -0.000252     92000   0.000136      92000   0.000009      
     92000   -0.028332     92000   0.015186      92000   0.001039      
     92000   -0.000130     92000   0.000070      92000   0.000005      
     92000   -0.915695     92000   0.484609      92000   0.033149      
********************************************************************************

********************************************************************************
  338 : Uranium Oxide 
  Source = PNNL-15870 Rev. 1 
  Formula = U3O8 
  Molecular weight (g/mole) = 841.8694726993 
  Density (g/cm3) = 8.300000 
  Total atom density (atoms/b-cm) = 6.531E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.152037      0.727273      0.047498      
  U-234     92234        92000        0.000226      0.000074      0.000005      
  U-235     92235        92000        0.025439      0.008283      0.000541      
  U-236     92236        92000        0.000117      0.000038      0.000002      
  U-238     92238        92000        0.822181      0.264332      0.017263      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.152037     8016    0.727273      8016    0.047498      
     92234   -0.000226     92234   0.000074      92234   0.000005      
     92235   -0.025439     92235   0.008283      92235   0.000541      
     92236   -0.000117     92236   0.000038      92236   0.000002      
     92238   -0.822181     92238   0.264332      92238   0.017263      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.152037     8000    0.727273      8000    0.047498      
     92000   -0.000226     92000   0.000074      92000   0.000005      
     92000   -0.025439     92000   0.008283      92000   0.000541      
     92000   -0.000117     92000   0.000038      92000   0.000002      
     92000   -0.822181     92000   0.264332      92000   0.017263      
********************************************************************************

********************************************************************************
  339 : Uranium Tetrafluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = UF4 
  Molecular weight (g/mole) = 313.9517036998 
  Density (g/cm3) = 6.700000 
  Total atom density (atoms/b-cm) = 6.426E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  F         9019         9000         0.242055      0.800000      0.051407      
  U-234     92234        92000        0.000202      0.000054      0.000003      
  U-235     92235        92000        0.022738      0.006074      0.000390      
  U-236     92236        92000        0.000105      0.000028      0.000002      
  U-238     92238        92000        0.734900      0.193843      0.012456      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9019    -0.242055     9019    0.800000      9019    0.051407      
     92234   -0.000202     92234   0.000054      92234   0.000003      
     92235   -0.022738     92235   0.006074      92235   0.000390      
     92236   -0.000105     92236   0.000028      92236   0.000002      
     92238   -0.734900     92238   0.193843      92238   0.012456      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     9000    -0.242055     9000    0.800000      9000    0.051407      
     92000   -0.000202     92000   0.000054      92000   0.000003      
     92000   -0.022738     92000   0.006074      92000   0.000390      
     92000   -0.000105     92000   0.000028      92000   0.000002      
     92000   -0.734900     92000   0.193843      92000   0.012456      
********************************************************************************

********************************************************************************
  340 : Uranium Trioxide 
  Source = PNNL-15870 Rev. 1 
  Formula = UO3 
  Molecular weight (g/mole) = 285.9562908998 
  Density (g/cm3) = 7.290000 
  Total atom density (atoms/b-cm) = 6.141E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.167852      0.750000      0.046057      
  U-234     92234        92000        0.000222      0.000068      0.000004      
  U-235     92235        92000        0.024964      0.007593      0.000466      
  U-236     92236        92000        0.000115      0.000035      0.000002      
  U-238     92238        92000        0.806847      0.242304      0.014880      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.167852     8016    0.750000      8016    0.046057      
     92234   -0.000222     92234   0.000068      92234   0.000004      
     92235   -0.024964     92235   0.007593      92235   0.000466      
     92236   -0.000115     92236   0.000035      92236   0.000002      
     92238   -0.806847     92238   0.242304      92238   0.014880      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.167852     8000    0.750000      8000    0.046057      
     92000   -0.000222     92000   0.000068      92000   0.000004      
     92000   -0.024964     92000   0.007593      92000   0.000466      
     92000   -0.000115     92000   0.000035      92000   0.000002      
     92000   -0.806847     92000   0.242304      92000   0.014880      
********************************************************************************

********************************************************************************
  341 : Uranium, Depleted, Typical 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.951157 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.000005      0.000005      0.000000      
  U-235     92235        92000        0.002500      0.002532      0.000121      
  U-238     92238        92000        0.997495      0.997463      0.047822      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.000005     92234   0.000005      92234   0.000000      
     92235   -0.002500     92235   0.002532      92235   0.000121      
     92238   -0.997495     92238   0.997463      92238   0.047822      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.000005     92000   0.000005      92000   0.000000      
     92000   -0.002500     92000   0.002532      92000   0.000121      
     92000   -0.997495     92000   0.997463      92000   0.047822      
********************************************************************************

********************************************************************************
  342 : Uranium, Enriched, Typical Commercial 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.944492 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.000305      0.000310      0.000015      
  U-235     92235        92000        0.029600      0.029967      0.001437      
  U-238     92238        92000        0.970095      0.969723      0.046492      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.000305     92234   0.000310      92234   0.000015      
     92235   -0.029600     92235   0.029967      92235   0.001437      
     92238   -0.970095     92238   0.969723      92238   0.046492      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.000305     92000   0.000310      92000   0.000015      
     92000   -0.029600     92000   0.029967      92000   0.001437      
     92000   -0.970095     92000   0.969723      92000   0.046492      
********************************************************************************

********************************************************************************
  343 : Uranium, HEU, Health Physics Society 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.724868 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.010530      0.010582      0.000507      
  U-235     92235        92000        0.931740      0.932362      0.044701      
  U-236     92236        92000        0.002060      0.002053      0.000098      
  U-238     92238        92000        0.055670      0.055003      0.002637      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.010530     92234   0.010582      92234   0.000507      
     92235   -0.931740     92235   0.932362      92235   0.044701      
     92236   -0.002060     92236   0.002053      92236   0.000098      
     92238   -0.055670     92238   0.055003      92238   0.002637      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.010530     92000   0.010582      92000   0.000507      
     92000   -0.931740     92000   0.932362      92000   0.044701      
     92000   -0.002060     92000   0.002053      92000   0.000098      
     92000   -0.055670     92000   0.055003      92000   0.002637      
********************************************************************************

********************************************************************************
  344 : Uranium, HEU, Russian Average 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.732854 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.009670      0.009722      0.000466      
  U-235     92235        92000        0.898000      0.898982      0.043100      
  U-236     92236        92000        0.003810      0.003798      0.000182      
  U-238     92238        92000        0.088520      0.087498      0.004195      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.009670     92234   0.009722      92234   0.000466      
     92235   -0.898000     92235   0.898982      92235   0.043100      
     92236   -0.003810     92236   0.003798      92236   0.000182      
     92238   -0.088520     92238   0.087498      92238   0.004195      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.009670     92000   0.009722      92000   0.000466      
     92000   -0.898000     92000   0.898982      92000   0.043100      
     92000   -0.003810     92000   0.003798      92000   0.000182      
     92000   -0.088520     92000   0.087498      92000   0.004195      
********************************************************************************

********************************************************************************
  345 : Uranium, HEU, US Average 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.724760 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.009800      0.009849      0.000472      
  U-235     92235        92000        0.931550      0.932166      0.044691      
  U-236     92236        92000        0.004500      0.004484      0.000215      
  U-238     92238        92000        0.054150      0.053501      0.002565      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.009800     92234   0.009849      92234   0.000472      
     92235   -0.931550     92235   0.932166      92235   0.044691      
     92236   -0.004500     92236   0.004484      92236   0.000215      
     92238   -0.054150     92238   0.053501      92238   0.002565      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.009800     92000   0.009849      92000   0.000472      
     92000   -0.931550     92000   0.932166      92000   0.044691      
     92000   -0.004500     92000   0.004484      92000   0.000215      
     92000   -0.054150     92000   0.053501      92000   0.002565      
********************************************************************************

********************************************************************************
  346 : Uranium, Low Enriched (LEU) 
  Source = PNNL-15870 Rev. 1 
  Formula = U 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.944386 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.000267      0.000271      0.000013      
  U-235     92235        92000        0.030000      0.030372      0.001456      
  U-236     92236        92000        0.000138      0.000139      0.000007      
  U-238     92238        92000        0.969595      0.969217      0.046468      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.000267     92234   0.000271      92234   0.000013      
     92235   -0.030000     92235   0.030372      92235   0.001456      
     92236   -0.000138     92236   0.000139      92236   0.000007      
     92238   -0.969595     92238   0.969217      92238   0.046468      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.000267     92000   0.000271      92000   0.000013      
     92000   -0.030000     92000   0.030372      92000   0.001456      
     92000   -0.000138     92000   0.000139      92000   0.000007      
     92000   -0.969595     92000   0.969217      92000   0.046468      
********************************************************************************

********************************************************************************
  347 : Uranium, Natural (NU) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 18.950000 
  Total atom density (atoms/b-cm) = 4.794E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  U-234     92234        92000        0.000057      0.000058      0.000003      
  U-235     92235        92000        0.007204      0.007295      0.000350      
  U-238     92238        92000        0.992739      0.992647      0.047591      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92234   -0.000057     92234   0.000058      92234   0.000003      
     92235   -0.007204     92235   0.007295      92235   0.000350      
     92238   -0.992739     92238   0.992647      92238   0.047591      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     92000   -0.000057     92000   0.000058      92000   0.000003      
     92000   -0.007204     92000   0.007295      92000   0.000350      
     92000   -0.992739     92000   0.992647      92000   0.047591      
********************************************************************************

********************************************************************************
  348 : Uranium-Plutonium, Mixed Oxide (MOX) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 11.000000 
  Total atom density (atoms/b-cm) = 7.357E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.118462      0.666666      0.049048      
  U-234     92234        92000        0.000010      0.000004      0.000000      
  U-235     92235        92000        0.002101      0.000805      0.000059      
  U-236     92236        92000        0.000000      0.000000      0.000000      
  U-238     92238        92000        0.838236      0.317052      0.023326      
  Pu-238    94238        94000        0.001030      0.000390      0.000029      
  Pu-239    94239        94000        0.022532      0.008487      0.000624      
  Pu-240    94240        94000        0.010751      0.004032      0.000297      
  Pu-241    94241        94000        0.003913      0.001462      0.000108      
  Pu-242    94242        94000        0.002966      0.001103      0.000081      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.118462     8016    0.666666      8016    0.049048      
     92234   -0.000010     92234   0.000004      92234   0.000000      
     92235   -0.002101     92235   0.000805      92235   0.000059      
     92236   0.000000      92236   0.000000      92236   0.000000      
     92238   -0.838236     92238   0.317052      92238   0.023326      
     94238   -0.001030     94238   0.000390      94238   0.000029      
     94239   -0.022532     94239   0.008487      94239   0.000624      
     94240   -0.010751     94240   0.004032      94240   0.000297      
     94241   -0.003913     94241   0.001462      94241   0.000108      
     94242   -0.002966     94242   0.001103      94242   0.000081      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.118462     8000    0.666666      8000    0.049048      
     92000   -0.000010     92000   0.000004      92000   0.000000      
     92000   -0.002101     92000   0.000805      92000   0.000059      
     92000   0.000000      92000   0.000000      92000   0.000000      
     92000   -0.838236     92000   0.317052      92000   0.023326      
     94000   -0.001030     94000   0.000390      94000   0.000029      
     94000   -0.022532     94000   0.008487      94000   0.000624      
     94000   -0.010751     94000   0.004032      94000   0.000297      
     94000   -0.003913     94000   0.001462      94000   0.000108      
     94000   -0.002966     94000   0.001103      94000   0.000081      
********************************************************************************

********************************************************************************
  349 : Uranyl Fluoride 
  Source = PNNL-15870 Rev. 1 
  Formula = UO2F2 
  Molecular weight (g/mole) = 307.9536972998 
  Density (g/cm3) = 6.370000 
  Total atom density (atoms/b-cm) = 6.228E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.103908      0.400000      0.024914      
  F         9019         9000         0.123385      0.400000      0.024914      
  U-234     92234        92000        0.000206      0.000054      0.000003      
  U-235     92235        92000        0.023181      0.006074      0.000378      
  U-236     92236        92000        0.000107      0.000028      0.000002      
  U-238     92238        92000        0.749213      0.193843      0.012073      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.103908     8016    0.400000      8016    0.024914      
     9019    -0.123385     9019    0.400000      9019    0.024914      
     92234   -0.000206     92234   0.000054      92234   0.000003      
     92235   -0.023181     92235   0.006074      92235   0.000378      
     92236   -0.000107     92236   0.000028      92236   0.000002      
     92238   -0.749213     92238   0.193843      92238   0.012073      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.103908     8000    0.400000      8000    0.024914      
     9000    -0.123385     9000    0.400000      9000    0.024914      
     92000   -0.000206     92000   0.000054      92000   0.000003      
     92000   -0.023181     92000   0.006074      92000   0.000378      
     92000   -0.000107     92000   0.000028      92000   0.000002      
     92000   -0.749213     92000   0.193843      92000   0.012073      
********************************************************************************

********************************************************************************
  350 : Uranyl Nitrate 
  Source = PNNL-15870 Rev. 1 
  Formula = UO2(NO3)2 
  Molecular weight (g/mole) = 393.9666908998 
  Density (g/cm3) = 2.203000 
  Total atom density (atoms/b-cm) = 3.704E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  N         7014         7000         0.071106      0.181818      0.006735      
  O         8016         8000         0.324888      0.727273      0.026940      
  U-234     92234        92000        0.000161      0.000025      0.000001      
  U-235     92235        92000        0.018120      0.002761      0.000102      
  U-236     92236        92000        0.000083      0.000013      0.000000      
  U-238     92238        92000        0.585641      0.088111      0.003264      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7014    -0.071106     7014    0.181818      7014    0.006735      
     8016    -0.324888     8016    0.727273      8016    0.026940      
     92234   -0.000161     92234   0.000025      92234   0.000001      
     92235   -0.018120     92235   0.002761      92235   0.000102      
     92236   -0.000083     92236   0.000013      92236   0.000000      
     92238   -0.585641     92238   0.088111      92238   0.003264      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     7000    -0.071106     7000    0.181818      7000    0.006735      
     8000    -0.324888     8000    0.727273      8000    0.026940      
     92000   -0.000161     92000   0.000025      92000   0.000001      
     92000   -0.018120     92000   0.002761      92000   0.000102      
     92000   -0.000083     92000   0.000013      92000   0.000000      
     92000   -0.585641     92000   0.088111      92000   0.003264      
********************************************************************************

********************************************************************************
  351 : Vermiculite, Exfoliated 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.085000 
  Total atom density (atoms/b-cm) = 3.048E-03 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.011835      0.197175      0.000601      
  O         8016         8000         0.496356      0.520978      0.001588      
  Mg        12000        12000        0.133383      0.092159      0.000281      
  Al        13027        13000        0.063151      0.039305      0.000120      
  Si        14000        14000        0.189668      0.113407      0.000346      
  K         19000        19000        0.021668      0.009307      0.000028      
  Ca        20000        20000        0.016353      0.006852      0.000021      
  Ti        22000        22000        0.009854      0.003457      0.000011      
  Fe        26000        26000        0.057732      0.017361      0.000053      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.011835     1001    0.197175      1001    0.000601      
     8016    -0.496356     8016    0.520978      8016    0.001588      
     12000   -0.133383     12000   0.092159      12000   0.000281      
     13027   -0.063151     13027   0.039305      13027   0.000120      
     14000   -0.189668     14000   0.113407      14000   0.000346      
     19000   -0.021668     19000   0.009307      19000   0.000028      
     20000   -0.016353     20000   0.006852      20000   0.000021      
     22000   -0.009854     22000   0.003457      22000   0.000011      
     26000   -0.057732     26000   0.017361      26000   0.000053      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.011835     1000    0.197175      1000    0.000601      
     8000    -0.496356     8000    0.520978      8000    0.001588      
     12000   -0.133383     12000   0.092159      12000   0.000281      
     13000   -0.063151     13000   0.039305      13000   0.000120      
     14000   -0.189668     14000   0.113407      14000   0.000346      
     19000   -0.021668     19000   0.009307      19000   0.000028      
     20000   -0.016353     20000   0.006852      20000   0.000021      
     22000   -0.009854     22000   0.003457      22000   0.000011      
     26000   -0.057732     26000   0.017361      26000   0.000053      
********************************************************************************

********************************************************************************
  352 : Viton Fluoroelastomer 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.800000 
  Total atom density (atoms/b-cm) = 7.596E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.009417      0.133327      0.010127      
  C         6000         6000         0.280555      0.333341      0.025321      
  F         9019         9000         0.710028      0.533332      0.040512      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.009417     1001    0.133327      1001    0.010127      
     6000    -0.280555     6000    0.333341      6000    0.025321      
     9019    -0.710028     9019    0.533332      9019    0.040512      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.009417     1000    0.133327      1000    0.010127      
     6000    -0.280555     6000    0.333341      6000    0.025321      
     9000    -0.710028     9000    0.533332      9000    0.040512      
********************************************************************************

********************************************************************************
  353 : Water, Heavy 
  Source = PNNL-15870 Rev. 1 
  Formula = D2O 
  Molecular weight (g/mole) = 20.027603556 
  Density (g/cm3) = 1.105340 
  Total atom density (atoms/b-cm) = 9.971E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H-2       1002         1000         0.201133      0.666667      0.066473      
  O         8016         8000         0.798867      0.333333      0.033237      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1002    -0.201133     1002    0.666667      1002    0.066473      
     8016    -0.798867     8016    0.333333      8016    0.033237      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.201133     1000    0.666667      1000    0.066473      
     8000    -0.798867     8000    0.333333      8000    0.033237      
********************************************************************************

********************************************************************************
  354 : Water, Liquid 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O 
  Molecular weight (g/mole) = 18.01528 
  Density (g/cm3) = 0.998207 
  Total atom density (atoms/b-cm) = 1.001E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.111894      0.666657      0.066733      
  O         8016         8000         0.888106      0.333343      0.033368      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.111894     1001    0.666657      1001    0.066733      
     8016    -0.888106     8016    0.333343      8016    0.033368      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.111894     1000    0.666657      1000    0.066733      
     8000    -0.888106     8000    0.333343      8000    0.033368      
********************************************************************************

********************************************************************************
  355 : Water, Vapor 
  Source = PNNL-15870 Rev. 1 
  Formula = H2O 
  Molecular weight (g/mole) = 18.01528 
  Density (g/cm3) = 0.000756 
  Total atom density (atoms/b-cm) = 7.583E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.111894      0.666657      0.000051      
  O         8016         8000         0.888106      0.333343      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.111894     1001    0.666657      1001    0.000051      
     8016    -0.888106     8016    0.333343      8016    0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.111894     1000    0.666657      1000    0.000051      
     8000    -0.888106     8000    0.333343      8000    0.000025      
********************************************************************************

********************************************************************************
  356 : Wax, M3 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.050000 
  Total atom density (atoms/b-cm) = 1.134E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.114318      0.632204      0.071717      
  C         6000         6000         0.655823      0.304366      0.034527      
  O         8016         8000         0.092183      0.032116      0.003643      
  Mg        12000        12000        0.134792      0.030913      0.003507      
  Ca        20000        20000        0.002883      0.000401      0.000045      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.114318     1001    0.632204      1001    0.071717      
     6000    -0.655823     6000    0.304366      6000    0.034527      
     8016    -0.092183     8016    0.032116      8016    0.003643      
     12000   -0.134792     12000   0.030913      12000   0.003507      
     20000   -0.002883     20000   0.000401      20000   0.000045      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.114318     1000    0.632204      1000    0.071717      
     6000    -0.655823     6000    0.304366      6000    0.034527      
     8000    -0.092183     8000    0.032116      8000    0.003643      
     12000   -0.134792     12000   0.030913      12000   0.003507      
     20000   -0.002883     20000   0.000401      20000   0.000045      
********************************************************************************

********************************************************************************
  357 : Wax, Mix D 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.990000 
  Total atom density (atoms/b-cm) = 1.203E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.134040      0.658880      0.079284      
  C         6000         6000         0.777960      0.320919      0.038617      
  O         8016         8000         0.035020      0.010845      0.001305      
  Mg        12000        12000        0.038594      0.007867      0.000947      
  Ti        22000        22000        0.014386      0.001489      0.000179      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.134040     1001    0.658880      1001    0.079284      
     6000    -0.777960     6000    0.320919      6000    0.038617      
     8016    -0.035020     8016    0.010845      8016    0.001305      
     12000   -0.038594     12000   0.007867      12000   0.000947      
     22000   -0.014386     22000   0.001489      22000   0.000179      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.134040     1000    0.658880      1000    0.079284      
     6000    -0.777960     6000    0.320919      6000    0.038617      
     8000    -0.035020     8000    0.010845      8000    0.001305      
     12000   -0.038594     12000   0.007867      12000   0.000947      
     22000   -0.014386     22000   0.001489      22000   0.000179      
********************************************************************************

********************************************************************************
  358 : Wax, Paraffin 
  Source = PNNL-15870 Rev. 1 
  Formula = C25H52 
  Molecular weight (g/mole) = 352.68038 
  Density (g/cm3) = 0.930000 
  Total atom density (atoms/b-cm) = 1.223E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.148605      0.675311      0.082572      
  C         6000         6000         0.851395      0.324689      0.039701      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.148605     1001    0.675311      1001    0.082572      
     6000    -0.851395     6000    0.324689      6000    0.039701      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.148605     1000    0.675311      1000    0.082572      
     6000    -0.851395     6000    0.324689      6000    0.039701      
********************************************************************************

********************************************************************************
  359 : Wood (Southern Pine) 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 0.640000 
  Total atom density (atoms/b-cm) = 4.932E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.059642      0.462423      0.022806      
  C         6000         6000         0.497018      0.323389      0.015949      
  N         7014         7000         0.004970      0.002773      0.000137      
  O         8016         8000         0.427435      0.208779      0.010297      
  Mg        12000        12000        0.001988      0.000639      0.000032      
  S         16000        16000        0.004970      0.001211      0.000060      
  K         19000        19000        0.001988      0.000397      0.000020      
  Ca        20000        20000        0.001988      0.000388      0.000019      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.059642     1001    0.462423      1001    0.022806      
     6000    -0.497018     6000    0.323389      6000    0.015949      
     7014    -0.004970     7014    0.002773      7014    0.000137      
     8016    -0.427435     8016    0.208779      8016    0.010297      
     12000   -0.001988     12000   0.000639      12000   0.000032      
     16000   -0.004970     16000   0.001211      16000   0.000060      
     19000   -0.001988     19000   0.000397      19000   0.000020      
     20000   -0.001988     20000   0.000388      20000   0.000019      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.059642     1000    0.462423      1000    0.022806      
     6000    -0.497018     6000    0.323389      6000    0.015949      
     7000    -0.004970     7000    0.002773      7000    0.000137      
     8000    -0.427435     8000    0.208779      8000    0.010297      
     12000   -0.001988     12000   0.000639      12000   0.000032      
     16000   -0.004970     16000   0.001211      16000   0.000060      
     19000   -0.001988     19000   0.000397      19000   0.000020      
     20000   -0.001988     20000   0.000388      20000   0.000019      
********************************************************************************

********************************************************************************
  360 : Xenon 
  Source = PNNL-15870 Rev. 1 
  Formula = Xe 
  Molecular weight (g/mole) = 131.293 
  Density (g/cm3) = 0.005485 
  Total atom density (atoms/b-cm) = 2.516E-05 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Xe        54000        54000        1.000000      1.000000      0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     54000   -1.000000     54000   1.000000      54000   0.000025      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     54000   -1.000000     54000   1.000000      54000   0.000025      
********************************************************************************

********************************************************************************
  361 : Yttrium Aluminum Garnet (YAG) 
  Source = PNNL-15870 Rev. 1 
  Formula = Y3Al5O12 
  Molecular weight (g/mole) = 593.61804 
  Density (g/cm3) = 4.560000 
  Total atom density (atoms/b-cm) = 9.252E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.323428      0.600000      0.055512      
  Al        13027        13000        0.227263      0.250000      0.023130      
  Y         39089        39000        0.449308      0.150000      0.013878      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.323428     8016    0.600000      8016    0.055512      
     13027   -0.227263     13027   0.250000      13027   0.023130      
     39089   -0.449308     39089   0.150000      39089   0.013878      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.323428     8000    0.600000      8000    0.055512      
     13000   -0.227263     13000   0.250000      13000   0.023130      
     39000   -0.449308     39000   0.150000      39000   0.013878      
********************************************************************************

********************************************************************************
  362 : Yttrium Aluminum Perovskite (YAP) 
  Source = PNNL-15870 Rev. 1 
  Formula = YAlO3 
  Molecular weight (g/mole) = 163.885588 
  Density (g/cm3) = 5.370000 
  Total atom density (atoms/b-cm) = 9.866E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.292876      0.600000      0.059198      
  Al        13027        13000        0.164636      0.200000      0.019733      
  Y         39089        39000        0.542487      0.200000      0.019733      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.292876     8016    0.600000      8016    0.059198      
     13027   -0.164636     13027   0.200000      13027   0.019733      
     39089   -0.542487     39089   0.200000      39089   0.019733      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.292876     8000    0.600000      8000    0.059198      
     13000   -0.164636     13000   0.200000      13000   0.019733      
     39000   -0.542487     39000   0.200000      39000   0.019733      
********************************************************************************

********************************************************************************
  363 : Yttrium OxyorthoSilicate (YSO) 
  Source = PNNL-15870 Rev. 1 
  Formula = Y2SiO5 
  Molecular weight (g/mole) = 285.8942 
  Density (g/cm3) = 4.450000 
  Total atom density (atoms/b-cm) = 7.499E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.279813      0.625000      0.046868      
  Si        14000        14000        0.098237      0.125000      0.009374      
  Y         39089        39000        0.621949      0.250000      0.018747      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.279813     8016    0.625000      8016    0.046868      
     14000   -0.098237     14000   0.125000      14000   0.009374      
     39089   -0.621949     39089   0.250000      39089   0.018747      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.279813     8000    0.625000      8000    0.046868      
     14000   -0.098237     14000   0.125000      14000   0.009374      
     39000   -0.621949     39000   0.250000      39000   0.018747      
********************************************************************************

********************************************************************************
  364 : Zeolite (Natrolite) 
  Source = PNNL-15870 Rev. 1 
  Formula = NA2Al2Si3O10-2(H2O) 
  Molecular weight (g/mole) = 380.223676 
  Density (g/cm3) = 2.250000 
  Total atom density (atoms/b-cm) = 8.196E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.010604      0.173913      0.014255      
  O         8016         8000         0.504947      0.521739      0.042764      
  Na        11023        11000        0.120928      0.086957      0.007127      
  Al        13027        13000        0.141925      0.086957      0.007127      
  Si        14000        14000        0.221597      0.130435      0.010691      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.010604     1001    0.173913      1001    0.014255      
     8016    -0.504947     8016    0.521739      8016    0.042764      
     11023   -0.120928     11023   0.086957      11023   0.007127      
     13027   -0.141925     13027   0.086957      13027   0.007127      
     14000   -0.221597     14000   0.130435      14000   0.010691      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.010604     1000    0.173913      1000    0.014255      
     8000    -0.504947     8000    0.521739      8000    0.042764      
     11000   -0.120928     11000   0.086957      11000   0.007127      
     13000   -0.141925     13000   0.086957      13000   0.007127      
     14000   -0.221597     14000   0.130435      14000   0.010691      
********************************************************************************

********************************************************************************
  365 : Zinc 
  Source = PNNL-15870 Rev. 1 
  Formula = Zn 
  Molecular weight (g/mole) = 65.409 
  Density (g/cm3) = 7.133000 
  Total atom density (atoms/b-cm) = 6.567E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Zn        30000        30000        1.000000      1.000000      0.065673      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     30000   -1.000000     30000   1.000000      30000   0.065673      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     30000   -1.000000     30000   1.000000      30000   0.065673      
********************************************************************************

********************************************************************************
  366 : Zinc Selenide 
  Source = PNNL-15870 Rev. 1 
  Formula = ZnSe 
  Molecular weight (g/mole) = 144.369 
  Density (g/cm3) = 5.420000 
  Total atom density (atoms/b-cm) = 4.522E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Zn        30000        30000        0.453068      0.500000      0.022609      
  Se        -            34000        0.546932      0.500000      0.022609      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     30000   -0.453068     30000   0.500000      30000   0.022609      
     -       -0.546932     -       0.500000      -       0.022609      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     30000   -0.453068     30000   0.500000      30000   0.022609      
     34000   -0.546932     34000   0.500000      34000   0.022609      
********************************************************************************

********************************************************************************
  367 : Zinc Sulfide 
  Source = PNNL-15870 Rev. 1 
  Formula = ZnS 
  Molecular weight (g/mole) = 97.474 
  Density (g/cm3) = 4.090000 
  Total atom density (atoms/b-cm) = 5.054E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  S         16000        16000        0.328960      0.500000      0.025269      
  Zn        30000        30000        0.671040      0.500000      0.025269      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     16000   -0.328960     16000   0.500000      16000   0.025269      
     30000   -0.671040     30000   0.500000      30000   0.025269      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     16000   -0.328960     16000   0.500000      16000   0.025269      
     30000   -0.671040     30000   0.500000      30000   0.025269      
********************************************************************************

********************************************************************************
  368 : Zircaloy-2 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 6.560000 
  Total atom density (atoms/b-cm) = 4.348E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.001197      0.006796      0.000296      
  Cr        24000        24000        0.000997      0.001743      0.000076      
  Fe        26000        26000        0.000997      0.001623      0.000071      
  Ni        28000        28000        0.000499      0.000772      0.000034      
  Zr        40000        40000        0.982348      0.978381      0.042541      
  Sn        50000        50000        0.013962      0.010686      0.000465      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.001197     8016    0.006796      8016    0.000296      
     24000   -0.000997     24000   0.001743      24000   0.000076      
     26000   -0.000997     26000   0.001623      26000   0.000071      
     28000   -0.000499     28000   0.000772      28000   0.000034      
     40000   -0.982348     40000   0.978381      40000   0.042541      
     50000   -0.013962     50000   0.010686      50000   0.000465      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.001197     8000    0.006796      8000    0.000296      
     24000   -0.000997     24000   0.001743      24000   0.000076      
     26000   -0.000997     26000   0.001623      26000   0.000071      
     28000   -0.000499     28000   0.000772      28000   0.000034      
     40000   -0.982348     40000   0.978381      40000   0.042541      
     50000   -0.013962     50000   0.010686      50000   0.000465      
********************************************************************************

********************************************************************************
  369 : Zircaloy-4 
  Source = PNNL-15870 Rev. 1 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 6.560000 
  Total atom density (atoms/b-cm) = 4.350E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  O         8016         8000         0.001196      0.006790      0.000295      
  Cr        24000        24000        0.000997      0.001741      0.000076      
  Fe        26000        26000        0.001994      0.003242      0.000141      
  Zr        40000        40000        0.981858      0.977549      0.042520      
  Sn        50000        50000        0.013955      0.010677      0.000464      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8016    -0.001196     8016    0.006790      8016    0.000295      
     24000   -0.000997     24000   0.001741      24000   0.000076      
     26000   -0.001994     26000   0.003242      26000   0.000141      
     40000   -0.981858     40000   0.977549      40000   0.042520      
     50000   -0.013955     50000   0.010677      50000   0.000464      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     8000    -0.001196     8000    0.006790      8000    0.000295      
     24000   -0.000997     24000   0.001741      24000   0.000076      
     26000   -0.001994     26000   0.003242      26000   0.000141      
     40000   -0.981858     40000   0.977549      40000   0.042520      
     50000   -0.013955     50000   0.010677      50000   0.000464      
********************************************************************************

********************************************************************************
  370 : Zirconium 
  Source = PNNL-15870 Rev. 1 
  Formula = Zr 
  Molecular weight (g/mole) = 91.224 
  Density (g/cm3) = 6.506000 
  Total atom density (atoms/b-cm) = 4.295E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  Zr        40000        40000        1.000000      1.000000      0.042949      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     40000   -1.000000     40000   1.000000      40000   0.042949      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     40000   -1.000000     40000   1.000000      40000   0.042949      
********************************************************************************

********************************************************************************
  371 : Zirconium Hydride (Zr5H8) 
  Source = PNNL-15870 Rev. 1 
  Formula = Zr5H8 
  Molecular weight (g/mole) = 464.18352 
  Density (g/cm3) = 5.610000 
  Total atom density (atoms/b-cm) = 9.462E-02 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.017371      0.615385      0.058226      
  Zr        40000        40000        0.982629      0.384615      0.036391      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.017371     1001    0.615385      1001    0.058226      
     40000   -0.982629     40000   0.384615      40000   0.036391      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.017371     1000    0.615385      1000    0.058226      
     40000   -0.982629     40000   0.384615      40000   0.036391      
********************************************************************************

********************************************************************************
  372 : Zirconium Hydride (ZrH2) 
  Source = PNNL-15870 Rev. 1 
  Formula = ZrH2 
  Molecular weight (g/mole) = 93.23988 
  Density (g/cm3) = 5.610000 
  Total atom density (atoms/b-cm) = 1.087E-01 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1001         1000         0.021620      0.666667      0.072467      
  Zr        40000        40000        0.978380      0.333333      0.036234      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1001    -0.021620     1001    0.666667      1001    0.072467      
     40000   -0.978380     40000   0.333333      40000   0.036234      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.021620     1000    0.666667      1000    0.072467      
     40000   -0.978380     40000   0.333333      40000   0.036234      
********************************************************************************

********************************************************************************
  373 : Martian Atmosphere 
  Source = Mahaffy 2013, DOI: 10.1126/science.1237966 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = function of altitude and time 
  Total atom density (atoms/b-cm) = - 
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  C         6000         6000         -0.261948     0.323658      0.000000      
  N         7000         7000         -0.018896     0.020021      0.000000      
  O         8000         8000         -0.699860     0.649153      0.000000      
  Ar        18000        18000        -0.019296     0.007168      0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.261948     6000    0.323658      6000    0.000000      
     7000    -0.018896     7000    0.020021      7000    0.000000      
     8000    -0.699860     8000    0.649153      8000    0.000000      
     18000   -0.019296     18000   0.007168      18000   0.000000      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     6000    -0.261948     6000    0.323658      6000    0.000000      
     7000    -0.018896     7000    0.020021      7000    0.000000      
     8000    -0.699860     8000    0.649153      8000    0.000000      
     18000   -0.019296     18000   0.007168      18000   0.000000      
********************************************************************************

********************************************************************************
  374 : Martian Regolith 
  Source = McKenna-Lawlor 2012, DOI: 10.1016/j.icarus.2011.04.004 
  Formula = - 
  Molecular weight (g/mole) = - 
  Density (g/cm3) = 1.7 
  Total atom density (atoms/b-cm) = 3.2746E-02    
--------------------------------------------------------------------------------
  Elemental composition 
  Element   Neutron ZA   Photon ZA    Weight frac.  Atom frac.    Atom density  
  H         1000         1000         -0.004866     0.151069      0.004947      
  Na        11000        11000        -0.024487     0.033300      0.001090      
  Mg        12000        12000        -0.012944     0.016650      0.000545      
  Al        13000        13000        -0.028739     0.033300      0.001090      
  Si        14000        14000        -0.140769     0.156699      0.005131      
  Ar        18000        18000        -0.686946     0.537612      0.017605      
  K         19000        19000        -0.041645     0.033300      0.001090      
  Ca        20000        20000        -0.021344     0.016650      0.000545      
  Fe        26000        26000        -0.038259     0.021419      0.000701      
--------------------------------------------------------------------------------
  MCNP formatted (neutrons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.004866     1000    0.151069      1000    0.004947      
     11000   -0.024487     11000   0.033300      11000   0.001090      
     12000   -0.012944     12000   0.016650      12000   0.000545      
     13000   -0.028739     13000   0.033300      13000   0.001090      
     14000   -0.140769     14000   0.156699      14000   0.005131      
     18000   -0.686946     18000   0.537612      18000   0.017605      
     19000   -0.041645     19000   0.033300      19000   0.001090      
     20000   -0.021344     20000   0.016650      20000   0.000545      
     26000   -0.038259     26000   0.021419      26000   0.000701      
--------------------------------------------------------------------------------
  MCNP formatted (photons) 
     Weight Fractions       Atom Fractions        Atom Densities   
     1000    -0.004866     1000    0.151069      1000    0.004947      
     11000   -0.024487     11000   0.033300      11000   0.001090      
     12000   -0.012944     12000   0.016650      12000   0.000545      
     13000   -0.028739     13000   0.033300      13000   0.001090      
     14000   -0.140769     14000   0.156699      14000   0.005131      
     18000   -0.686946     18000   0.537612      18000   0.017605      
     19000   -0.041645     19000   0.033300      19000   0.001090      
     20000   -0.021344     20000   0.016650      20000   0.000545      
     26000   -0.038259     26000   0.021419      26000   0.000701      
********************************************************************************
