Protons from 40Ca bombarded with 14.1 MeV neutrons

Abstract Energy spectra and angular distributions were measured for protons emitted from 40 Ca bombarded with 14.1 MeV neutrons. The constant-nuclear-temperature formula for level density fits the energy distribution for backward angles and yields a nuclear temperature of 1.34 ± 0.04 MeV for 40 K. The angular distributions of the protons emitted through compound process are nearly symmetric around 90°. The spin cut-off parameter is estimated to be about 2.0 from the angular distribution of protons emitted by the (n, p) reaction. The cross sections for the (n, p) and (n, np) reactions through compound process are 471 ± 21 mb and 180 ± 32 mb, respectively. The direct (n, p) reactions has a cross section of about 11 mb.