中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4466-4471.doi: 10.1088/1674-1056/17/12/022

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A new method for detecting pulse gamma ray with scattered electrons

康克军1, 谭新建1, 夏良斌2, 欧阳晓平3, 王群书3   

  1. (1)Department of Engineering Physics, Tsinghua University, Beijing 100084, China; (2)Department of Engineering Physics, Tsinghua University, Beijing 100084, China;Northwest Institute of Nuclear Technology, Xi'an 710024, China; (3)Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • 收稿日期:2008-01-19 修回日期:2008-04-22 出版日期:2008-12-20 发布日期:2008-12-20

A new method for detecting pulse gamma ray with scattered electrons

Xia Liang-Bin (夏良斌)ab, Ouyang Xiao-Ping (欧阳晓平)b, Wang Qun-Shu (王群书)b, Kang Ke-Jun (康克军)a, Tan Xin-Jian (谭新建)a   

  1. a Department of Engineering Physics, Tsinghua University, Beijing 100084, China; b Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • Received:2008-01-19 Revised:2008-04-22 Online:2008-12-20 Published:2008-12-20

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摘要： This paper describes a newly designed gamma pulse detector of current mode that uses the scattered electron method. Tungsten is used as the scattering target, an organic thin film scintillator ST401 is used to collect the scattered electrons. The spatial distribution of the electronic energy-flux density is studied by using the MCNP code. The optimization of the target and the thickness of the scintillator are also discussed. The results indicate that the energy response is relatively flat in the range of 0.4 to 5 MeV.

关键词: scattering, electron, pulse, gamma, response

Abstract: This paper describes a newly designed gamma pulse detector of current mode that uses the scattered electron method. Tungsten is used as the scattering target, an organic thin film scintillator ST401 is used to collect the scattered electrons. The spatial distribution of the electronic energy-flux density is studied by using the MCNP code. The optimization of the target and the thickness of the scintillator are also discussed. The results indicate that the energy response is relatively flat in the range of 0.4 to 5 MeV.

Key words: scattering, electron, gamma, response

中图分类号:  (Scintillation detectors)

  • 29.40.Mc
07.85.Fv (X- and γ-ray sources, mirrors, gratings, and detectors)