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Question Re: neutron cross section data 

Forum: Hadronic Processes
Re: Question neutron cross section data (hemiao)
Re: Question Re: neutron cross section data (hemiao)
Date: 03 Sep, 2010
From: hemiao <hemiao>

Using the QGSP_BIC_HP, QGSP_BIC to calculate G4_GRAPHIT mass attenuation coefficient for 2MeV neutron, the results like following: the 1st data from neutron count, and 2nd one from neutron energy.

neutron E(MeV)   mass attenuation coefficient  PhysicsProcess                   
                  1st(cm2/g)    2nd(cm2/g)
  2.000000e+00  8.664998e-02   6.588248e-02      QGSP_BIC_HP
  2.000000e+00  -6.843797e-02  8.113455e-02      QGSP_BIC

while I found from paper or G4Data, that the mass attenuation coefficient should be 0.14 cm2/g

who can help what's the problem with my calculation?

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