Calculation of Recoil Spectra Resulting from Nuclear Reactions with Multiple Particle Emission

A simple calculational procedure of the kinetic energy distribution of the residual nuclei resulting from nuclear reactions with multiple particle emission is presented. This method can easily be implemented in reaction model codes employed for nuclear data evaluation. Some properties of recoil spectra from neutron-induced reactions are illustrated by means of the reaction ⁵⁸Ni + n at 40 MeV.