Neutron Yields from Stopping-Length and Near-Stopping-Length Targets for 256-MeV Protons.

摘要

We have measured absolute neutron yields at angles of 30/degrees/, 60/degrees/, 120/degrees/, and 150/degrees/, for the 256-MeV proton bombardment of elemental carbon, aluminum, and iron and of depleted uranium. We used time-of-flight techniques to identify and discriminate against backgrounds and to determine the neutron energy spectrum. Comparison of the experimental yields with intranuclear-cascade evaporation-model calculations with the codes HETC and ISABEL showed very good agreement over the entire neutron energy range except at 150/degrees/. 16 refs., 31 figs., 4 tabs. (ERA citation 13:055628)