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	Track reconstruction based on Hough-transform for nTPC
	Niu LB(牛莉博) ; Li YL(李玉兰) ; Huang M(黄孟) ; He B(何彬) ; Li YJ(李元景) ; NIU Li-Bo ; LI Yu-Lan ; HUANG Meng ; HE Bin ; LI Yuan-Jing
	2016-03-30 ; 2016-03-30
关键词	fast neutron spectrometer GEM-TPC Hough-transform track reconstruction Geant4 O572.2
其他题名	Track reconstruction based on Hough-transform for nTPC
中文摘要	A GEM-TPC prototype, which will be used as a fast neutron spectrometer based on the recoil proton method, is designed and being constructed in Tsinghua University. In order to derive the recoil angle of the recoil proton, tracks of recoil proton in the TPC sensitive volume must be reconstructed. An algorithm based on Houghtransform for track finding and least square method for track fitting was developed in this paper. Based on the Monte Carlo simulation data given by Geant 4, a detailed track reconstruction process was introduced and the spectrum of induced fast neutron was derived here. The results show that the algorithm was effective and high-performance.With the recoil angle of the proton less than 30� a 4.4% FWHM neutron energy resolution was derived for 5 Me V induced fast neutron, and the detection efficiency was about 2�0-4.; A GEM-TPC prototype, which will be used as a fast neutron spectrometer based on the recoil proton method, is designed and being constructed in Tsinghua University. In order to derive the recoil angle of the recoil proton, tracks of recoil proton in the TPC sensitive volume must be reconstructed. An algorithm based on Houghtransform for track finding and least square method for track fitting was developed in this paper. Based on the Monte Carlo simulation data given by Geant 4, a detailed track reconstruction process was introduced and the spectrum of induced fast neutron was derived here. The results show that the algorithm was effective and high-performance.With the recoil angle of the proton less than 30� a 4.4% FWHM neutron energy resolution was derived for 5 Me V induced fast neutron, and the detection efficiency was about 2�0-4.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/143226]
专题	清华大学
推荐引用方式 GB/T 7714	Niu LB,Li YL,Huang M,et al. Track reconstruction based on Hough-transform for nTPC[J],2016, 2016.
APA	牛莉博.,李玉兰.,黄孟.,何彬.,李元景.,...&LI Yuan-Jing.(2016).Track reconstruction based on Hough-transform for nTPC..
MLA	牛莉博,et al."Track reconstruction based on Hough-transform for nTPC".(2016).

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