CODE | NUCLIDE | ORIGINAL DATA TAKEN FROM | MODIFICATION | ADDITIONAL FILE MODIFICATIONS | ORIGINAL DATA TAKEN FROM | MODIFICATION | ADDITIONAL FILE MODIFICATIONS | COMMENTS |
1002003 | 002_He_003 | ENDF/B-VII CONVERTED FROM ENDF/B-VI BY NNDC OCT 2004 | New capture cross sections were evaluated with the EDA code. The ENDF/B-VI evaluation is strictly 1/v, going through a low thermal value, whereas the data indicate a higher thermal value, and resonance structure around 2 MeV. This fit also had data in the 4He(gamma,n) direction that indicated a much higher cross section in the MeV region, and that is the reason why the new evaluation looks overshooting the experimental 3He(n,g) data in the MeV region. The differences in the new and old capture cross sections was added to the total cross sections. G. Hale (Apr. 2011) |