Spectrum of protons from n, p reactions at 13.4 and 17.5 MeV

Abstract

In this paper measurements are presented on the energy distribution of protons emitted in n, p reactions on Al and Ni in the natural isotopic mixture. These measurements have been taken with neutrons of energy of 17.5 and 13.4 MeV, to the purpose of studying how the proton energy distribution varies with the incoming neutron energy, in order to establish which process is responsible for the n, p reaction. The results give evidence to the fact that the statistical evaporation theory is insuitable for explaining the proton spectra obtained, and that the spectrum shape does not depend on the residual nucleus excitation energy but seems more determined by the energy of emitted protons.