Determination of the 233Pa(n, f) reaction cross section from 0.5 to 10 MeV neutron energy using the transfer reaction 232Th(3He, p)234Pa

摘要: Abstract The fission probability distributions of 232, 233, 234 Pa and 231 Th have been measured up to an excitation energy 15 MeV, using the transfer reactions 232 Th( 3 He, t) Pa, He, d) 233 He, p) 234 He,  4 He) Th. From these measurements, neutron induced cross sections 230 determined from product probabilities respectively with calculated compound nucleus formation in Pa+n, Pa+n Th+n reactions. validity applied method has successfully tested existing Pa. Special emphasis is put on Pa(n, f) reaction which importance for thorium fueled nuclear reactors. Based a statistical model analysis section as function energy, it possible determine barrier parameters fissioning nucleus. Cross inelastic scatttering Pa(n, n′) radiative capture Pa(n,  γ ) also compared recent evaluations.