2-He-4  basic  n-XS summary  XS graphs  element

2-helium-4 He-4 T=300 K from ENDF/B-6.0 mat 228 2-He- 4 LANL EVAL-OCT73 Nisley,Hale,Young 2-HE- 4 LANL EVAL-OCT73 NISLEY, HALE, YOUNG 2-HE- 4 NEA RCOM-JUN82 SCIENTIFIC CO-ORDINATION GROUP