Updated and revised neutron reaction data for 236,238Np
1 China Nuclear Data Center, China Institute of Atomic Energy, Beijing 102413, China
2 School of Physics & State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
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Published online: 13 September 2017
Nuclear data with high accuracy for minor actinides play an important role in nuclear technology applications, including reactor design and operation, fuel cycle, estimation of the amount of minor actinides in high burn-up reactors and the minor actinides transmutation. Based on a new set of neutron optical model parameter and the reaction cross section systematics of fissile isotopes, a full set of 236,238Np neutron reaction data from 10−5 eV ∼20 MeV are updated and improved through theoretical calculation. Mainly revised quantities include the total, elastic, inelastic, fission, (n, 2n) and (n, γ) reaction cross sections as well as angular distribution etc. The promising results are obtained when the renewal evaluated data of 236,238Np will replace the evaluated data in CENDL-3.1 database.
© The Authors, published by EDP Sciences, 2017
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