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Interaction of fast neutrons with /sup 4/He, /sup 3/He, and /sup 1/H: additional and improved data. [20 MeV, differential cross sections, angular distributions]

Technical Report ·
DOI:https://doi.org/10.2172/6735686· OSTI ID:6735686
An improvement of previous elastic scattering data of neutrons in the 20-MeV range was made possible by the improved knowledge of the detection efficiency of the neutron detector. Thus revised absolute differential cross-section data for /sup 3/He(n,n)/sup 3/He and /sup 4/He(n,n)/sup 4/He were obtained with smaller uncertainties. Cross sections of nonelastic n-He reactions were obtained from recent data of the reciprocal reactions by detailed balance calculations. In addition, incomplete angular distributions for the reaction /sup 1/H(n,n)/sup 1/H between 22.5 MeV and 28.5 MeV are presented.
Research Organization:
Los Alamos Scientific Lab., N.Mex. (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6735686
Report Number(s):
LA-7269-MS
Country of Publication:
United States
Language:
English