Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (1): 13 doi: 10.1007/s41365-018-0533-7


Theoretical calculation and evaluation of n+240,242,244Pu reactions

Hai-Rui Guo1 • Yin-Lu Han2 • Chong-Hai Cai3   

  1. 1 Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
    2 China Institute of Atomic Energy, Beijing 102413, China
    3 Department of Physics, Nankai University, Tianjin 300071, China
  • Received:2018-06-05 Revised:2018-10-08 Accepted:2018-10-09
  • Contact: Yin-Lu Han E-mail:
  • Supported by:
    This work was supported by the National Natural Science Foundation of China-NSAF (No. U1630122) and IAEA Coordinated Research Projects (CRPs) on Recommended Input Parameter Library (RIPL) for Fission Cross Section Calculations (No. 20464).
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Hai-Rui Guo, Yin-Lu Han, Chong-Hai Cai. Theoretical calculation and evaluation of n+240,242,244Pu reactions.Nuclear Science and Techniques, 2019, 30(1): 13     doi: 10.1007/s41365-018-0533-7

Abstract: The nuclear data of n+240;242;244Pu reactions for incident energy below 200 MeV are calculated and evaluated to meet the requirement in the design of an accelerator- driven subcritical system. The optical model is used to calculate the total, nonelastic, shape elastic cross sections, shape elastic scattering angular distributions, and transmission coefficients. The distorted-wave Born approximation is applied to calculate the direct inelastic scatterings to the discrete excited states. The nuclear reaction statistical models and fission theory are applied to describe neutron, proton, deuteron, triton, helium-3, alpha and c emissions, and fission consistently. The results thus obtained are compared with experimental data and the evaluated data obtained from ENDF/B-VII.1 and JENDL- 4.0.

Key words: n+240,242,244Pu reactions, Theoretical calculation of nuclear reaction, Nuclear data for E ≤ 200 MeV