Evaluation of Neutron Nuclear Data for Mercury

摘要

Neutron nuclear data of stable mercury isotopes (~(196)Hg, ~(198)Hg, ~(199)Hg, ~(200)Hg, ~(201)Hg, ~(202)Hg and ~(204)Hg) have been evaluated in the energy range of 10~(-5) eV～20 MeV. Evaluated quantities are the total, elastic and inelastic scattering, capture, (n, 2n), (n,3n), (n,p), (n,d), (n,α), (n,np), (n,nα) reaction and γ-ray production cross sections, the resonance parameters, and the angular and energy distributions of emitted neutrons and γ-rays. The evaluation is mainly based on nuclear reaction model calculations. Statistical-model calculation played a significant role in the determination of the reaction cross sections. The evaluated data have been compiled in the ENDF-6 format, and are used for the design study of a mercury target system proposed at the Neutron Science Research Center, Japan Atomic Energy Research Institute.