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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
ISSN0034-6748
卷号89期号:10页码:5
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.
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
DOI10.1063/1.5038936
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[11675218] ; National Natural Science Foundation of China[11628509]
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
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
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文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/34227
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
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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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