Optimization study and design of scintillating fiber detector for D-T neutron measurements on EAST with Geant4

doi:10.1007/s41365-022-01123-w

	Optimization study and design of scintillating fiber detector for D-T neutron measurements on EAST with Geant4
	Chen, Wei-Kun 1,2; Hu, Li-Qun 1; Zhong, Guo-Qiang 1,3; Hong, Bing 3; Zhou, Rui-Jie 1; Li, Kai 4; Yang, Li 1,2
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2022-11-01
卷号	33
关键词	Sci-Fi detector Optimal design n/gamma resolution Intrinsic detection efficiency Geant4
ISSN号	1001-8042
DOI	10.1007/s41365-022-01123-w
通讯作者	Zhong, Guo-Qiang(gqzhong@ipp.ac.cn)
英文摘要	Real-time monitoring of the 14-MeV D-T fusion neutron yield is urgently required for the triton burnup study on the Experimental Advanced Superconducting Tokamak (EAST). In this study, we developed an optimal design of a fast-neutron detector based on the scintillating fiber (Sci-Fi) to provide D-T neutron yield through Geant4 simulation. The effect on the detection performance is concerned when changing the number of the Sci-Fis embedded in the probe head, minimum distance between the fibers, length of the fibers, or substrate material of the probe head. The maximum number of scintillation photons generated by the n/gamma source particles and output by the light guide within an event (event: the entire simulation process for one source particle) was used to quantify the n/gamma resolution of the detector as the main basis. And the intrinsic detection efficiency was used as another evaluation criterion. The results demonstrate that the optimal design scheme is to use a 5 cm probe head whose substrate material is pure aluminum, in which 463 Sci-Fis with the same length of 5 cm are embedded, and the minimum distance between the centers of the two fibers is 2 mm. The optimized detector exhibits clear directionality in the simulation, which is in line with the expectation and experimental data provided in the literature. This study presents the variation trends of the performance of the Sci-Fi detector when its main parameters change, which is beneficial for the targeted design and optimization of the Sci-Fi detector used in a specific radiation environment.
资助项目	Users with Excellence Program of Hefei Science Center CAS[2020HSC-UE012] ; Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228] ; Institute of Energy, Hefei Comprehensive National Science Center[21KZS205] ; Institute of Energy, Hefei Comprehensive National Science Center[21KZL401]
WOS关键词	TRITON BURNUP MEASUREMENTS ; CONFINEMENT ; EMISSION ; TFTR
WOS研究方向	Nuclear Science & Technology ; Physics
语种	英语
出版者	SPRINGER SINGAPORE PTE LTD
WOS记录号	WOS:000880340800004
资助机构	Users with Excellence Program of Hefei Science Center CAS ; Comprehensive Research Facility for Fusion Technology Program of China ; Institute of Energy, Hefei Comprehensive National Science Center
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130184]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhong, Guo-Qiang
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China 4.West Anhui Univ, Sch Mech & Vehicle Engn, Luan 237012, Peoples R China
推荐引用方式 GB/T 7714	Chen, Wei-Kun,Hu, Li-Qun,Zhong, Guo-Qiang,et al. Optimization study and design of scintillating fiber detector for D-T neutron measurements on EAST with Geant4[J]. NUCLEAR SCIENCE AND TECHNIQUES,2022,33.
APA	Chen, Wei-Kun.,Hu, Li-Qun.,Zhong, Guo-Qiang.,Hong, Bing.,Zhou, Rui-Jie.,...&Yang, Li.(2022).Optimization study and design of scintillating fiber detector for D-T neutron measurements on EAST with Geant4.NUCLEAR SCIENCE AND TECHNIQUES,33.
MLA	Chen, Wei-Kun,et al."Optimization study and design of scintillating fiber detector for D-T neutron measurements on EAST with Geant4".NUCLEAR SCIENCE AND TECHNIQUES 33(2022).