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

H. H. Hogue; P. 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; L. W. Seagondollar

doi:dx.doi.org/10.13182/NSE78-A27268

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

H. H. Hogue, P. 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, L. W. Seagondollar

Nuclear Science and Engineering / Volume 68 / Number 1 / October 1978 / Pages 38-42

Technical Paper / dx.doi.org/10.13182/NSE78-A27268

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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.