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Article Navigation >  Nuclear Physics Review  > 2016  >  33(4): 442-448

MENG Qinghua, WANG Taofeng, ZHU Liping, WANG Liming, HAN Hongyin. A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments[J]. Nuclear Physics Review, 2016, 33(4): 442-448. doi: 10.11804/NuclPhysRev.33.04.442
Citation: MENG Qinghua, WANG Taofeng, ZHU Liping, WANG Liming, HAN Hongyin. A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments[J]. Nuclear Physics Review, 2016, 33(4): 442-448. doi: 10.11804/NuclPhysRev.33.04.442
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A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments

doi: 10.11804/NuclPhysRev.33.04.442
  • 1.

    Nuclear Physics Department, China Institute of Atomic Energy, Beijing 102413, China;

  • 2.

    School of Physics Science and Technology, Lanzhou University, Lanzhou 730000, China;

  • 3.

    School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China

Funds:  National Natural Science Foundation of China(10175091, 11305007)
  • Received Date: 2015-10-28
  • Rev Recd Date: 2016-04-13
  • Publish Date: 2016-12-20
  • In order to separate the mass number of fragments in the fission reactions, it is essential to develop a good time-of-flight (TOF) method. The purpose of this article is to set up a TOF detector system including a microchannel plate (MCP) and a Au-Si surface-barrier detector (SBD). The TOF system shows a detection efficiency of 39% for α-particles released from 241Am and 98% for fragments in the spontaneous fission of 252Cf. The experimental results show that the time resolutions of (224:1±6:1) ps for the heavy fragments (Ek=78 MeV, AH=138~148 u) and (154:5±5:8) ps for the light fragments (Ek=102 MeV, AL=101~111 u) can be obtained.
  • [1] HU Jimin. Fission Physics[M]. Beijing:Peking University Publishing House, 1999:134. (in Chinese) (胡济民. 核裂变物理学[M]. 北京, 北京大学出版社, 1999:134.)
    [2] DIETZ E, CZARNECKI J V, PATSCHEr W, et al. Nucl Instr and Meth, 1973, 108:607.
    [3] Fudan University, Tsinghua University and Peking University collaborate to Edit. Experimental Method of Nuclear Physics[M]. 3th Edition. Beijing:Atomic Energy Press, 1997. (in Chinese) (复旦大学、清华大学和北京大学合编, 原子核物理实验方法[M]. 第三版. 北京:原子能出版社, 1997.)
    [4] BAO Zongyu, MENG Jiangchen, HAN Hongyin, et al. Atomic Energy Science and Technology, 1982, 16(1):12. (包宗渝, 孟江辰, 韩洪银, 等. 原子能科学技术, 1982, 16:12.)
    [5] BARAT C, COUTELIER J. Nucl Instr and Meth, 1977, 143:87.
    [6] STERNGLASS E J. Phys Rev, 1957, 108:1.
    [7] SCHNEIDER W F W, KOHLMEYER B, BOCK R. Nucl Instr and Meth, 1970, 87:253.
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A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments

doi: 10.11804/NuclPhysRev.33.04.442
  • 1. Nuclear Physics Department, China Institute of Atomic Energy, Beijing 102413, China;
  • 2. School of Physics Science and Technology, Lanzhou University, Lanzhou 730000, China;
  • 3. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
Funds:  National Natural Science Foundation of China(10175091, 11305007)
  • Received Date: 2015-10-28
  • Rev Recd Date: 2016-04-13
  • Publish Date: 2016-12-20

Abstract: In order to separate the mass number of fragments in the fission reactions, it is essential to develop a good time-of-flight (TOF) method. The purpose of this article is to set up a TOF detector system including a microchannel plate (MCP) and a Au-Si surface-barrier detector (SBD). The TOF system shows a detection efficiency of 39% for α-particles released from 241Am and 98% for fragments in the spontaneous fission of 252Cf. The experimental results show that the time resolutions of (224:1±6:1) ps for the heavy fragments (Ek=78 MeV, AH=138~148 u) and (154:5±5:8) ps for the light fragments (Ek=102 MeV, AL=101~111 u) can be obtained.

MENG Qinghua, WANG Taofeng, ZHU Liping, WANG Liming, HAN Hongyin. A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments[J]. Nuclear Physics Review, 2016, 33(4): 442-448. doi: 10.11804/NuclPhysRev.33.04.442
Citation: MENG Qinghua, WANG Taofeng, ZHU Liping, WANG Liming, HAN Hongyin. A MCP and Au-Si SBD TOF Detection System for Mass Measurement of Fission Fragments[J]. Nuclear Physics Review, 2016, 33(4): 442-448. doi: 10.11804/NuclPhysRev.33.04.442
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