Abstract
Cross section measurements were made for (n, xγ) and (n, xn) reactions of Mo, Ti and Ni at 120° with respect to the incident neutron. The monodirectional source neutrons were obtained by the associated particle method using D-T reaction. The (n, xγ) and (n, xn) data were simultaneously measured by an NE-213 scintillator using a pulse-shape discrimination circuit. The (n, xγ) cross sections obtained in this paper agreed well with other experimental data. The (n, xγ) data for Ti and Ni given by Drake seem too large in the energy range beyond 4–5 MeV. Followings were pointed out for the evaluated data in the ENDF/B-IV file. 1. The (n, xγ) cross section for Ni and the (n, xn) data for Mo are considered to be adequate. 2. The (n, xγ) cross sections for Mo and Ni are not adequate. 3. The (n, xn) cross sections for Ti and Ni seem to have large errors.
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