中国物理B ›› 2003, Vol. 12 ›› Issue (6): 599-603.doi: 10.1088/1009-1963/12/6/305

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Neutronics studies of solid targets for spallation neutron source using Monte Carlo simulation

梁九卿1, 殷雯2   

  1. (1)Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China; (2)Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China; Institute of Physics, State Key Laboratory of Magnetism, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2003-02-26 修回日期:2003-04-01 出版日期:2003-06-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the Program of International Cooperation of Science and Technology (Grant No 2002 CB713903) and the National Natural Science Foundation of China (Grant No 10075302).

Neutronics studies of solid targets for spallation neutron source using Monte Carlo simulation

Yin Wen (殷雯)ab, Liang Jiu-Qing (梁九卿)a   

  1. a Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China; b Institute of Physics, State Key Laboratory of Magnetism, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-02-26 Revised:2003-04-01 Online:2003-06-16 Published:2005-03-16
  • Supported by:
    Project supported by the Program of International Cooperation of Science and Technology (Grant No 2002 CB713903) and the National Natural Science Foundation of China (Grant No 10075302).

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摘要： Neutronics studies for a solid target have been done with Monte Carlo high-energy particle transport code NMTC/JAM, when the proton beam with high kinetic energy bombards the target. The effect of the main parameters of the target on the neutron flux is discussed to optimize the target, which will be used for the concept design of the target of spallation neutron source. A target with its aspect ratio 1.5:1 or 2:1 gives the highest neutron flux. Tungsten is the most acceptable material from the technical and economical points of view. Beryllium as a moderating reflector can increase the neutron flux effectively.

Abstract: Neutronics studies for a solid target have been done with Monte Carlo high-energy particle transport code NMTC/JAM, when the proton beam with high kinetic energy bombards the target. The effect of the main parameters of the target on the neutron flux is discussed to optimize the target, which will be used for the concept design of the target of spallation neutron source. A target with its aspect ratio 1.5:1 or 2:1 gives the highest neutron flux. Tungsten is the most acceptable material from the technical and economical points of view. Beryllium as a moderating reflector can increase the neutron flux effectively.

Key words: spallation neutron source, neutronics, optimal target

中图分类号:  (Spallation reactions)

  • 25.40.Sc
29.25.Dz (Neutron sources) 24.10.Lx (Monte Carlo simulations (including hadron and parton cascades and string breaking models)) 28.20.Cz (Neutron scattering) 27.70.+q (150 ≤ A ≤ 189)