<p>A comparison of small-batch clustering and charge-comparison methods for n/? discrimination using a liquid scintillation detector</p>

doi:10.1016/j.nima.2022.166379

	A comparison of small-batch clustering and charge-comparison methods for n/? discrimination using a liquid scintillation detector
	Wang, Feipeng 1,2; Yang, Minghan 1; Wang, Jianye 1; Shen, Shuifa 1,3,4; Hong, Bing 1
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2022-04-01
卷号	1028
关键词	n/gamma discrimination Liquid scintillator Small-batch clustering Charge comparison method
ISSN号	0168-9002
DOI	10.1016/j.nima.2022.166379
通讯作者	Yang, Minghan(minghan.yang@inest.cas.cn)
英文摘要	In this study, a novel neutron and gamma-ray (n/gamma) discrimination method based on a small-batch clustering algorithm has been developed to improve the discrimination performance of an EJ-301 liquid scintillator detector. The Principal Component Analysis (PCA) of the particle waveform shows that the main feature distribution of the original signal presents an approximate ellipse, which prompts us to adopt a clustering algorithm based on Gaussian Mixture Model (GMM). The classification ability of the small-batch clustering for discriminating n/gamma pulse waveforms is verified by a mixed radiation field from a( 252)Cf isotope source, and then compared with the discrimination results of the charge comparison (CC) method. The results show that the proposed method based on the small-batch clustering provide a higher Figure of Merit (FoM) for n/gamma discrimination compared to the CC method, in which FoM increases from 1.26, 1.30, 1.39, and 1.45 for the CC method to 1.35, 1.48, 1.52 and 1.68 respectively for the proposed method during the energy intervals 400-600 keV, 600-800 keV, 800-1000 keV, and > 1000 keV for the mixed field of Cf-252. The results infer that the small-batch clustering method can be used as reference for pulse shape discrimination in neutron detection.
资助项目	Natural Science Foundation of Hefei City, China[2021003] ; CASHIPS Director's Fund[YZJJ2021QN34]
WOS关键词	PULSE-SHAPE DISCRIMINATION ; DIGITAL DISCRIMINATION ; GAMMA-RAYS ; NEUTRONS
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000781655600006
资助机构	Natural Science Foundation of Hefei City, China ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128457]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Minghan
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Fujian Univ Technol, Sch Elect Elect Engn & Phys, Fuzhou 350118, Fujian, Peoples R China 4.Zhejiang Guangsha Vocat & Tech Univ Construct, Sch Intelligent Mfg, Jinhua 322100, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Feipeng,Yang, Minghan,Wang, Jianye,et al. A comparison of small-batch clustering and charge-comparison methods for n/? discrimination using a liquid scintillation detector [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2022,1028.
APA	Wang, Feipeng,Yang, Minghan,Wang, Jianye,Shen, Shuifa,&Hong, Bing.(2022). A comparison of small-batch clustering and charge-comparison methods for n/? discrimination using a liquid scintillation detector .NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,1028.
MLA	Wang, Feipeng,et al." A comparison of small-batch clustering and charge-comparison methods for n/? discrimination using a liquid scintillation detector ".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1028(2022).