Development of a wide-range neutron flux monitoring system in EAST

doi:10.1088/1748-0221/15/05/P05011

	Development of a wide-range neutron flux monitoring system in EAST
	Zhong, G. Q.1; Li, K.1,2; Hu, L. Q.1; Cao, H. R.1; Zhou, R. J.1; Lin, S. Y.1; Hong, B.1; Huo, Z. P.1; Zhang, H.1; Xiao, M.1
刊名	JOURNAL OF INSTRUMENTATION
	2020-05-01
卷号	15
关键词	Nuclear instruments and methods for hot plasma diagnostics Neutron detectors (cold, thermal, fast neutrons) Detector alignment and calibration methods (lasers, sources, particle-beams) Digital electronic circuits
ISSN号	1748-0221
DOI	10.1088/1748-0221/15/05/P05011
通讯作者	Zhou, R. J.(rjzhou@ipp.ac.cn)
英文摘要	A wide measurement range for a neutron flux monitoring (NFM) system is developed in the Experimental Advanced Superconducting Tokamak (EAST) for fusion neutron yield measurement, comprising an He-3 proportional counter, a U-235 fission chamber (FC), and a wide dynamic range signal-processing circuit. Two high-sensitivity He-3 detectors operate in counting mode, which is suitable for low neutron yield (Y-n) conditions with ohmic and radio-frequency heating of plasma. Two other FCs are adapted with newly developed digitizers, operating in counting and campbelling modes to satisfy the conditions of wide dynamic range measurement required by neutral beam injection (NBI) experiment. The anti-magnetic-field interference of the FC is examined using two permanent magnets, whose efficiency are calibrated with 2.46MeV neutrons produced by a Van de Graaff accelerator. Furthermore, the NFM system is implemented in-situ calibration with a Cf-252 neutron source and a remote handling. As a routine diagnostic, the NFM system is successful obtaining the fusion neutron yield for ion cyclotron resonance heating (ICRH) and NBI heating performance evaluation in EAST plasma experiment.
资助项目	National Natural Science Foundation of China[11605241] ; National Natural Science Foundation of China[11775263] ; National Natural Science Foundation of China[11975276] ; National Natural Science Foundation of China[11605240] ; National Magnetic Confinement Fusion Energy Research Project[2015GB103000] ; National Magnetic Confinement Fusion Energy Research Project[2015GB111003]
WOS关键词	CALIBRATION ; JET
WOS研究方向	Instruments & Instrumentation
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000534740900011
资助机构	National Natural Science Foundation of China ; National Magnetic Confinement Fusion Energy Research Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103185]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, R. J.
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, 350 Shushanhu Rd, Hefei, Anhui, Peoples R China 2.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei, Anhui, Peoples R China 3.Peking Univ, Sch Phys, 5 Yiheyuan Rd, Beijing, Peoples R China 4.Peking Univ, State Key Lab Nucl Phys & Technol, 5 Yiheyuan Rd, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhong, G. Q.,Li, K.,Hu, L. Q.,et al. Development of a wide-range neutron flux monitoring system in EAST[J]. JOURNAL OF INSTRUMENTATION,2020,15.
APA	Zhong, G. Q..,Li, K..,Hu, L. Q..,Cao, H. R..,Zhou, R. J..,...&Zhang, Y. M..(2020).Development of a wide-range neutron flux monitoring system in EAST.JOURNAL OF INSTRUMENTATION,15.
MLA	Zhong, G. Q.,et al."Development of a wide-range neutron flux monitoring system in EAST".JOURNAL OF INSTRUMENTATION 15(2020).