Calculation of neutron nuclear data on calcium isotopes for JENDL-4

Shibata, Keiichi

Neutron nuclear data on have been calculated for the evaluated nuclear data library JENDL-4. Simultaneously calculated are the total, elastic and inelastic scattering, (), (), (), (), (), () and () reaction cross sections, the angular distributions of emitted neutrons, and the energy distributions of emitted particles and -rays. The statistical model was applied to calculate these quantities. Pre-equilibrium and direct-reaction processes were taken into account in addition to the compound process. It is found that the present calculations are almost consistent with available experimental data and much better than the JENDL-3.3 evaluation. In particular, the measured -ray production data are well reproduced by the present calculations.