Development of a time-of-flight low-energy neutral particle analyzer for EAST tokamak

doi:10.1063/1.5038936

	Development of a time-of-flight low-energy neutral particle analyzer for EAST tokamak
	Mu, L.1,2; Ding, R.1 ; Zhu, Y. B.3; Chen, J. L.1; Li, S.1
	2018-10-01
发表期刊	REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN	0034-6748
通讯作者	Ding, R.(rding@ipp.ac.cn)
摘要	To understand the erosion effect of neutral particles on the first wall, a low energy neutral particle analyzer (LENPA), based on the time-of-flight method, has been developed for the Experimental Advanced Superconducting Tokamak (EAST). The LENPA to be installed in the EAST mid-plane mainly consists of a chopper sub-system, a 3 m long flight tube, two sets of detector assemblies, and data acquisition and processing, vacuum, power supply, and control sub-systems. The neutral outflux is gated in bunches of 1 mu s time scale by a slotted rotating disc which is driven by a vacuum compatible motor modified from a turbomolecular pump. A He-Ne laser beam is projected through the disc slit to record the instants of chopper slits opening with an avalanche photodiode module. An on-axis electron multiplier detects chopped neutrals, and a central perforated Cu-Be plate is employed to channel the emitted secondary electrons into an off-axis electron multiplier. The radiation peaks of on-axis electron multiplier caused by UV photons projected through the central hole of the Cu-Be plate provide an alternative way to record the chopper slits' opening time. With an additional 4 TB fast memory card, 1 GS/s sampling rate has been realized by using a GaGe acquisition card continuously. The LENPA data from the EAST together with neutral particle material erosion experiments will be used to benchmark the simulation results for better predictions on future fusion reactors, such as ITER and China Fusion Engineering Test Reactor (CFETR). Published by AIP Publishing.
DOI	10.1063/1.5038936
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11628509] ; National Natural Science Foundation of China[11675218] ; National Natural Science Foundation of China[11675218] ; National Natural Science Foundation of China[11628509]
项目资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向	Instruments & Instrumentation ; Physics
WOS类目	Instruments & Instrumentation ; Physics, Applied
WOS记录号	WOS:000449144500180
出版者	AMER INST PHYSICS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/34226
专题	中科院等离子体物理研究所
通讯作者	Ding, R.
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Univ Calif Irvine, Irvine, CA 92697 USA
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Mu, L.,Ding, R.,Zhu, Y. B.,et al. Development of a time-of-flight low-energy neutral particle analyzer for EAST tokamak[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2018,89(10):5.
APA	Mu, L.,Ding, R.,Zhu, Y. B.,Chen, J. L.,&Li, S..(2018).Development of a time-of-flight low-energy neutral particle analyzer for EAST tokamak.REVIEW OF SCIENTIFIC INSTRUMENTS,89(10),5.
MLA	Mu, L.,et al."Development of a time-of-flight low-energy neutral particle analyzer for EAST tokamak".REVIEW OF SCIENTIFIC INSTRUMENTS 89.10(2018):5.

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