Studying the Dependence of the Ratio of the Prompt Neutron Yields in the Symmetric and Asymmetric Fission of ~(235)U and ~(238)U Nuclei on the Energy of Neutrons Inducing This Fission

摘要

The ratios have been measured of the prompt neutron yields in the symmetric and asymmetric fission of ~(235)U nuclei induced by thermal neutrons and fast neutrons of pulsed nuclear reactors, as well as in the ~(238)U fission induced by 14.7-MeV neutrons. The well-known measured integrated cross sections of the system of dosimetric nuclear reactions are compared to the cross sections calculated using the differential cross sections from the data libraries known worldwide, the three-component representation of fission neutron spectra from ~(235)U and ~(252)Cf nuclei, and the KASKAD spectrum reconstruction program.