Abstract
Neutron total cross sections of elemental beryllium are measured from 1 to 10 MeV with good precision. Differential neutron elastic scattering cross sections are measured from 4.5 to MeV at intervals of {approx}0.5 MeV and at {approx}100 angular steps distributed between {approx}18 and 160 deg at each incident energy. Concurrently, differential cross sections for the emission of a discrete inelastic neutron group corresponding to an excited level at (2.43 {plus minus} 0.06) MeV are determined over the same incident energy and angular range. Angle-integrated elastic scattering cross sections are deduced from the observed differential values to accuracies of {approx}2l5%, and angle-integrated inelastic scattering cross sections to accuracies of {approx}10%. The experimental results are compared with values given in ENDF/B-V, with attention to descrepancies and implications. Qualitative reaction mechanisms are suggested.
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