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Discrimination of neutrons and γ-rays in liquid scintillator based on Elman neural network
张才勋 林兴德 赵建玲 余训臻 王力 朱敬军 幸浩洋
Chinese physics C, 2016-08, Vol.40 (8), p.130-135
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Título:
Discrimination of neutrons and γ-rays in liquid scintillator based on Elman neural network
Autor:
张才勋 林兴德 赵建玲 余训臻 王力 朱敬军 幸浩洋
Assuntos:
Artificial neural networks
;
Back propagation
;
BP神经网络
;
Data acquisition
;
Detectors
;
Discrimination
;
Elman神经网络
;
Liquids
;
Neural networks
;
Pulse shape
;
中子探测
;
人工神经网络
;
光芒
;
反向传播神经网络
;
液体闪烁探测器
;
脉冲形状甄别
É parte de:
Chinese physics C, 2016-08, Vol.40 (8), p.130-135
Notas:
In this work, a new neutron and γ (n/γ) discrimination method based on an Elman Neural Network (ENN) is proposed to improve the discrimination performance of liquid scintillator (LS) detectors. Neutron and γ data were acquired from an EJ-335 LS detector, which was exposed in a 241Am-9Be radiation field. Neutron and γ events were discriminated using two methods of artificial neural network including the ENN and a typical Back Propagation Neural Network (BPNN) as a control. The results show that the two methods have different n/γ discrimination performances. Compared to the BPNN, the ENN provides an improved of Figure of Merit (FOM) in n/γ discrimination. The FOM increases from 0.907 4- 0.034 to 0.953 4- 0.037 by using the new method of the ENN. The proposed n/γdiscrimination method based on ENN provides a new choice of pulse shape discrimination in neutron detection.
11-5641/O4
liquid scintillator, n/γ discrimination, Elman neural network, BP neural network
Cai-Xun Zhang, Shin-Ted Lin, Jian-Ling Zhao, Xun-Zhen Yu, Li Wang, Jing-Jun Zhu,Hao-Yang Xing(Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology Siehuan University, Chengdu 610065, China 2 School of Physical Science and Technology, Sichuan University, Chengdu 610065, China 3 Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China)
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição:
In this work, a new neutron and γ (n/γ) discrimination method based on an Elman Neural Network (ENN) is proposed to improve the discrimination performance of liquid scintillator (LS) detectors. Neutron and γ data were acquired from an EJ-335 LS detector, which was exposed in a 241Am-9Be radiation field. Neutron and γ events were discriminated using two methods of artificial neural network including the ENN and a typical Back Propagation Neural Network (BPNN) as a control. The results show that the two methods have different n/γ discrimination performances. Compared to the BPNN, the ENN provides an improved of Figure of Merit (FOM) in n/γ discrimination. The FOM increases from 0.907 4- 0.034 to 0.953 4- 0.037 by using the new method of the ENN. The proposed n/γdiscrimination method based on ENN provides a new choice of pulse shape discrimination in neutron detection.
Idioma:
Inglês
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