Cross sections for (n, 2n), (n, p) and (n, 〈alpha〉) reactions on osmium isotopes in the neutron energy range of 13.5–14.8 MeV

Cross sections for (n, 2n), (n, p) and (n, 〈alpha〉) reactions on the osmium isotopes were measured in the neutron energies 13.5–14.8 MeV by the activation technique with the monitor reaction 93Nb(n, 2n)92mNb. Our measurements were carried out by γ-detection using a coaxial high-purity germanium (HPGe) detector. Natural high-purity osmium powder (99.9%) was fabricated as the samples. The neutron energies were determined by the cross-section ratios for 93Nb(n, 2n)92mNb and 90Zr(n, 2n)89m+gZr reactions. The fast neutrons were produced by the T(d, n)4He reaction. The results obtained were compared with previous data.