title: Proton-beryllium neutron production at 25-55 MeV.
abstract: The production of neutrons by stopping 25-, 35-, 45-, and 55-MeV protons in beryllium has been studied. The yield of neutrons in the forward direction can be approximated by the relation: yield = -0.032X10(16).E+0.0027X10(16).E2 neutrons/C sr. The neutron spectra are characterized by a low-energy evaporation component which has small angular dependence and a high-energy component which is peaked in the forward direction. Neutrons produced in the forward direction have an average energy approximately 40% of the incident proton energy.
mesh_terms: D001608:Beryllium; D009502:Neutrons; D011522:Protons; D014894:Weights and Measures
chemical_list: D011522:Protons; D001608:Beryllium