Cross section measurements for 75As isotope at neutron energies from 13.5 to 14.8 MeV

Cross sections which is relevant in research of neutron transmutation doping of some important semiconducting materials were measured at neutron energies from 13.5 to 14.8 MeV for the reactions 75As(n, 2n)74As, 75As(n, p)75m+gGe, 75As(n, α)72m+gGa by activation relative to the 27Al(n, α)24Na reaction. Measurements were carried out by γ-detection using a coaxial HPGe detector. Natural realgar (As2S2) powder of 99.9% purity was used as samples. Fast neutrons were produced by the T(d, n)4He reaction. The results obtained are compared with existing data.