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Differential Elastic and Inelastic Scattering of 7- to 15-MeV Neutrons from Beryllium

DOI

25

Citations

0

References

1978

Year

H. H. Hogue, Patrick L. Von Behren, D. H. Epperson, S. G. Glendinning, P.W. Lisowski, C. E. Nelson, H.W. Newson, F. O. Purser, W. Tornow, C. R. Gould,
Nuclear Science and Engineering

Abstract

Differential cross sections are reported for elastic and inelastic scattering of neutrons from beryllium. Source neutrons were provided by the D(d,n)3 He reaction at energies from 7 to 15 MeV in 1-MeV steps. Scattered neutrons were observed over a flight path of 4 m at angles ranging from 25 to 160 deg in 5-deg increments. The integrated elastic scattering cross sections agree well with the ENDF/BIV cross-section set. The inelastic scattering cross sections are for the sum of the 1.69-, 2.43-, 2.8-, and 3.06-MeV-state cross sections and fall below the ENDF/B-IV predictions. Inelastic scattering to the 2.43-MeV state in 9Be accounts for less than half of the total 9Be(n,2n) cross sections above 8 MeV.