Program XCOM1 (Version 1.3) M. J. Berger, 17 June 1991

HELIUM
Density: 0.166E-03 gm/cc

 
        Constituents (Atomic Number:Fraction by Weight)
           2:1.00000
 
        Partial Interaction Coefficients and Total Attenuation Coefficients
 
        PHOTON      SCATTERING      PHOTO-    PAIR PRODUCTION  TOTAL ATTENUATION
        ENERGY   COHERENT INCOHER. ELECTRIC    IN       IN       WITH   WITHOUT
                                  ABSORPTION NUCLEAR ELECTRON  COHERENT COHERENT
                                              FIELD    FIELD    SCATT.   SCATT.
         (MeV)    (cm2/g)  (cm2/g)  (cm2/g)  (cm2/g)  (cm2/g)  (cm2/g)  (cm2/g)
 
        1.000E-03 3.79E-01 1.02E-02 6.04E+01 0.00E+00 0.00E+00 6.08E+01 6.04E+01
        1.500E-03 3.55E-01 2.13E-02 1.64E+01 0.00E+00 0.00E+00 1.68E+01 1.64E+01
        2.000E-03 3.25E-01 3.49E-02 6.50E+00 0.00E+00 0.00E+00 6.86E+00 6.54E+00
        3.000E-03 2.63E-01 6.36E-02 1.68E+00 0.00E+00 0.00E+00 2.01E+00 1.74E+00
        4.000E-03 2.06E-01 8.95E-02 6.37E-01 0.00E+00 0.00E+00 9.33E-01 7.27E-01
        5.000E-03 1.62E-01 1.10E-01 3.05E-01 0.00E+00 0.00E+00 5.77E-01 4.15E-01
        6.000E-03 1.28E-01 1.26E-01 1.65E-01 0.00E+00 0.00E+00 4.20E-01 2.92E-01
        8.000E-03 8.43E-02 1.47E-01 6.18E-02 0.00E+00 0.00E+00 2.93E-01 2.09E-01
        1.000E-02 5.91E-02 1.59E-01 2.92E-02 0.00E+00 0.00E+00 2.48E-01 1.89E-01
        1.500E-02 2.95E-02 1.72E-01 7.33E-03 0.00E+00 0.00E+00 2.09E-01 1.80E-01
        2.000E-02 1.76E-02 1.76E-01 2.75E-03 0.00E+00 0.00E+00 1.96E-01 1.78E-01
        3.000E-02 8.18E-03 1.75E-01 6.87E-04 0.00E+00 0.00E+00 1.84E-01 1.76E-01
        4.000E-02 4.69E-03 1.71E-01 2.57E-04 0.00E+00 0.00E+00 1.76E-01 1.72E-01
        5.000E-02 3.03E-03 1.67E-01 1.20E-04 0.00E+00 0.00E+00 1.70E-01 1.67E-01
        6.000E-02 2.11E-03 1.63E-01 6.41E-05 0.00E+00 0.00E+00 1.65E-01 1.63E-01
        8.000E-02 1.19E-03 1.55E-01 2.40E-05 0.00E+00 0.00E+00 1.56E-01 1.55E-01
        1.000E-01 7.66E-04 1.48E-01 1.13E-05 0.00E+00 0.00E+00 1.49E-01 1.48E-01
        1.500E-01 3.41E-04 1.33E-01 2.88E-06 0.00E+00 0.00E+00 1.34E-01 1.33E-01
        2.000E-01 1.92E-04 1.22E-01 1.12E-06 0.00E+00 0.00E+00 1.22E-01 1.22E-01
        3.000E-01 8.54E-05 1.06E-01 3.08E-07 0.00E+00 0.00E+00 1.06E-01 1.06E-01
        4.000E-01 4.81E-05 9.53E-02 1.30E-07 0.00E+00 0.00E+00 9.53E-02 9.53E-02
        5.000E-01 3.08E-05 8.70E-02 6.97E-08 0.00E+00 0.00E+00 8.71E-02 8.70E-02
        6.000E-01 2.14E-05 8.05E-02 4.33E-08 0.00E+00 0.00E+00 8.05E-02 8.05E-02
        8.000E-01 1.20E-05 7.07E-02 2.18E-08 0.00E+00 0.00E+00 7.08E-02 7.07E-02
        1.000E+00 7.69E-06 6.36E-02 1.36E-08 0.00E+00 0.00E+00 6.36E-02 6.36E-02
        1.022E+00 7.36E-06 6.29E-02 1.25E-08 0.00E+00 0.00E+00 6.29E-02 6.29E-02
        1.250E+00 4.92E-06 5.69E-02 8.52E-09 4.70E-06 0.00E+00 5.69E-02 5.69E-02
        1.500E+00 3.42E-06 5.17E-02 6.23E-09 2.64E-05 0.00E+00 5.17E-02 5.17E-02
        2.000E+00 1.92E-06 4.41E-02 3.96E-09 1.06E-04 0.00E+00 4.42E-02 4.42E-02
        2.044E+00 1.84E-06 4.36E-02 3.84E-09 1.14E-04 0.00E+00 4.37E-02 4.37E-02
        3.000E+00 8.55E-07 3.47E-02 2.24E-09 3.04E-04 1.21E-05 3.50E-02 3.50E-02
        4.000E+00 4.81E-07 2.89E-02 1.55E-09 4.94E-04 4.96E-05 2.95E-02 2.95E-02
        5.000E+00 3.08E-07 2.50E-02 1.19E-09 6.63E-04 9.88E-05 2.58E-02 2.58E-02
        6.000E+00 2.14E-07 2.21E-02 9.57E-10 8.15E-04 1.52E-04 2.31E-02 2.31E-02
        7.000E+00 1.57E-07 1.99E-02 8.02E-10 9.51E-04 2.05E-04 2.10E-02 2.10E-02
        8.000E+00 1.20E-07 1.81E-02 6.90E-10 1.07E-03 2.56E-04 1.94E-02 1.94E-02
        9.000E+00 9.50E-08 1.66E-02 6.05E-10 1.19E-03 3.05E-04 1.81E-02 1.81E-02
        1.000E+01 7.69E-08 1.54E-02 5.39E-10 1.29E-03 3.52E-04 1.70E-02 1.70E-02
        1.100E+01 6.36E-08 1.44E-02 4.86E-10 1.38E-03 3.96E-04 1.61E-02 1.61E-02
        1.200E+01 5.34E-08 1.35E-02 4.42E-10 1.46E-03 4.39E-04 1.54E-02 1.54E-02
        1.300E+01 4.55E-08 1.27E-02 4.05E-10 1.54E-03 4.78E-04 1.47E-02 1.47E-02
        1.400E+01 3.92E-08 1.20E-02 3.74E-10 1.62E-03 5.16E-04 1.41E-02 1.41E-02
        1.500E+01 3.42E-08 1.14E-02 3.48E-10 1.69E-03 5.52E-04 1.36E-02 1.36E-02
        1.600E+01 3.00E-08 1.08E-02 3.25E-10 1.75E-03 5.87E-04 1.32E-02 1.32E-02
        1.800E+01 2.37E-08 9.92E-03 2.87E-10 1.87E-03 6.51E-04 1.24E-02 1.24E-02
        2.000E+01 1.92E-08 9.14E-03 2.57E-10 1.98E-03 7.10E-04 1.18E-02 1.18E-02
        2.200E+01 1.59E-08 8.49E-03 2.32E-10 2.08E-03 7.64E-04 1.13E-02 1.13E-02
        2.400E+01 1.34E-08 7.94E-03 2.12E-10 2.17E-03 8.14E-04 1.09E-02 1.09E-02
        2.600E+01 1.14E-08 7.45E-03 1.95E-10 2.25E-03 8.61E-04 1.06E-02 1.06E-02
        2.800E+01 9.81E-09 7.03E-03 1.81E-10 2.33E-03 9.05E-04 1.03E-02 1.03E-02
        3.000E+01 8.55E-09 6.66E-03 1.68E-10 2.40E-03 9.46E-04 1.00E-02 1.00E-02
        4.000E+01 4.81E-09 5.29E-03 1.25E-10 2.71E-03 1.12E-03 9.11E-03 9.11E-03
        5.000E+01 3.08E-09 4.42E-03 9.97E-11 2.94E-03 1.26E-03 8.61E-03 8.61E-03
        6.000E+01 2.14E-09 3.81E-03 8.28E-11 3.12E-03 1.37E-03 8.30E-03 8.30E-03
        8.000E+01 1.20E-09 3.00E-03 6.19E-11 3.41E-03 1.54E-03 7.95E-03 7.95E-03
        1.000E+02 7.69E-10 2.49E-03 4.94E-11 3.62E-03 1.68E-03 7.78E-03 7.78E-03
        1.500E+02 3.42E-10 1.77E-03 3.28E-11 3.96E-03 1.91E-03 7.65E-03 7.65E-03
        2.000E+02 1.92E-10 1.39E-03 2.46E-11 4.18E-03 2.07E-03 7.63E-03 7.63E-03
        3.000E+02 8.54E-11 9.86E-04 1.64E-11 4.43E-03 2.27E-03 7.68E-03 7.68E-03
        4.000E+02 4.81E-11 7.72E-04 1.23E-11 4.58E-03 2.40E-03 7.74E-03 7.74E-03
        5.000E+02 3.08E-11 6.39E-04 9.80E-12 4.67E-03 2.48E-03 7.79E-03 7.79E-03
        6.000E+02 2.14E-11 5.47E-04 8.16E-12 4.74E-03 2.55E-03 7.84E-03 7.84E-03
        8.000E+02 1.20E-11 4.27E-04 6.12E-12 4.84E-03 2.64E-03 7.90E-03 7.90E-03
        1.000E+03 7.69E-12 3.51E-04 4.89E-12 4.90E-03 2.70E-03 7.95E-03 7.95E-03
        1.500E+03 3.42E-12 2.46E-04 3.26E-12 4.99E-03 2.79E-03 8.02E-03 8.02E-03
        2.000E+03 1.92E-12 1.90E-04 2.45E-12 5.03E-03 2.84E-03 8.06E-03 8.06E-03
        3.000E+03 8.54E-13 1.32E-04 1.63E-12 5.09E-03 2.90E-03 8.12E-03 8.12E-03
        4.000E+03 4.81E-13 1.02E-04 1.22E-12 5.12E-03 2.93E-03 8.15E-03 8.15E-03
        5.000E+03 3.08E-13 8.34E-05 9.78E-13 5.14E-03 2.95E-03 8.17E-03 8.17E-03
        6.000E+03 2.14E-13 7.07E-05 8.15E-13 5.15E-03 2.97E-03 8.18E-03 8.18E-03
        8.000E+03 1.20E-13 5.45E-05 6.11E-13 5.16E-03 2.99E-03 8.20E-03 8.20E-03
        1.000E+04 7.69E-14 4.45E-05 4.89E-13 5.17E-03 3.00E-03 8.22E-03 8.22E-03
        1.500E+04 3.42E-14 3.07E-05 3.26E-13 5.19E-03 3.01E-03 8.23E-03 8.23E-03
        2.000E+04 1.92E-14 2.36E-05 2.44E-13 5.20E-03 3.02E-03 8.24E-03 8.24E-03
        3.000E+04 8.54E-15 1.63E-05 1.63E-13 5.20E-03 3.03E-03 8.25E-03 8.25E-03
        4.000E+04 4.81E-15 1.25E-05 1.22E-13 5.21E-03 3.04E-03 8.26E-03 8.26E-03
        5.000E+04 3.08E-15 1.02E-05 9.78E-14 5.21E-03 3.04E-03 8.26E-03 8.26E-03
        6.000E+04 2.14E-15 8.61E-06 8.15E-14 5.21E-03 3.04E-03 8.26E-03 8.26E-03
        8.000E+04 1.20E-15 6.60E-06 6.11E-14 5.21E-03 3.05E-03 8.27E-03 8.27E-03
        1.000E+05 7.69E-16 5.37E-06 4.89E-14 5.21E-03 3.05E-03 8.27E-03 8.27E-03
Calculation is finished.