Charge Comparison Method Used to Discriminate Photons and Neutrons in Liquid Scintillators

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Chen Yu, Wang Zijing, Mao Zepu, Deng Bingkun, Li Shichang, Li Jin, Li Haibo, Zhang Zhongyun, Hu Tao, Xia Xiaomi, Cao Guilu and Lai Yuanfen. Charge Comparison Method Used to Discriminate Photons and Neutrons in Liquid Scintillators[J]. Chinese Physics C, 1999, 23(7): 616-621.
Chen Yu, Wang Zijing, Mao Zepu, Deng Bingkun, Li Shichang, Li Jin, Li Haibo, Zhang Zhongyun, Hu Tao, Xia Xiaomi, Cao Guilu and Lai Yuanfen. Charge Comparison Method Used to Discriminate Photons and Neutrons in Liquid Scintillators[J]. Chinese Physics C, 1999, 23(7): 616-621. shu
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Received: 1998-05-28
Revised: 1900-01-01
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Charge Comparison Method Used to Discriminate Photons and Neutrons in Liquid Scintillators

    Corresponding author: Chen Yu,
  • Institute of High Energy Physics, CAS, Beijing 1000392 Institute of Physics, Taibei 115293 Nuclear Instrument Factory, Beijing 100020

Abstract: A new method used to discriminate neutrons and photons in liquid scintillators with charge comparison and using a CAMAC-microcomputer data acquisition system is described. The total charge and multi-channel partial charges for different time segments of pulses from liquid scintillator samples of NE213 or BC519 radiated by 241Am-Be or 252Cf neutron sources are measured. The dependences of n,γ seperation in scintillators on delay time and energy distribution are given from off-line data analysis. The energy distribution of neutrons or γ-ray and pulse shapes for fast and slow components of scintillators can be measured using such a n, γ discrimination method.

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