Study of n-<I>γ</I> discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector

CHEN Yong-Hao; LEI Jia-Rong; ZHANG Xiao-Dong; AN Li; ZHENG Pu; WANG Xin-Hua; ZHU Chuan-Xin; HE Tie

doi:10.1088/1674-1137/37/4/046202

Chinese Physics C> 2013, Vol. 37> Issue(4) : 046202 DOI: 10.1088/1674-1137/37/4/046202

Study of n-γ discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector

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Abstract：
An experimental system aimed at n-γ discrimination using the zero-crossing method with a φ3"× 2" BC501A liquid scintillation detector was established and tested with an Am-Be neutron source. Two-dimensional plots of energy versus zero-crossing time were obtained. The quality of n-γ discrimination was checked by the figure-of-merit (FOM), the neutron peak-to-valley ratio, and the proportion of leaked neutrons over all neutron events. The performance of n-γ discrimination in terms of FOM was compared with previous work done by other groups. The n-γ discrimination in four different energy regions with an interval of 0.1 MeV between 0.3 MeV and 0.7 MeV was studied, and the results indicate that the n-γ discrimination threshold can go down to 0.4 MeV.

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CHEN Yong-Hao, LEI Jia-Rong, ZHANG Xiao-Dong, AN Li, ZHENG Pu, WANG Xin-Hua, ZHU Chuan-Xin and HE Tie. Study of n-γ discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector[J]. Chinese Physics C, 2013, 37(4): 046202. doi: 10.1088/1674-1137/37/4/046202

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Received: 2012-05-23
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of n-γ discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector

Corresponding author: AN Li,

Received Date: 2012-05-23

Accepted Date: 1900-01-01

Available Online: 2013-04-05

Abstract: An experimental system aimed at n-γ discrimination using the zero-crossing method with a φ3"× 2" BC501A liquid scintillation detector was established and tested with an Am-Be neutron source. Two-dimensional plots of energy versus zero-crossing time were obtained. The quality of n-γ discrimination was checked by the figure-of-merit (FOM), the neutron peak-to-valley ratio, and the proportion of leaked neutrons over all neutron events. The performance of n-γ discrimination in terms of FOM was compared with previous work done by other groups. The n-γ discrimination in four different energy regions with an interval of 0.1 MeV between 0.3 MeV and 0.7 MeV was studied, and the results indicate that the n-γ discrimination threshold can go down to 0.4 MeV.

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Study of n-γ discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector

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Study of n-γ discrimination for 0.4-1 MeV neutrons using the zero-crossing method with a BC501A liquid scintillation detector

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