Production cross-sections and neutron polarization in (p,n) reactions at 143 MeV

Abstract Measurements have been made of the energy spectra and polarizations of neutrons emitted at a laboratory angle of 45° from deuterium, lithium and aluminium bombarded by protons of 143 MeV. The results are consistent with the view that neutron production from deuterium proceeds mainly by single quasi-free proton-neutron scattering but that multiple scattering effects predominate in heavier nuclei.