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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
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
ISSN0034-6748
Volume89Issue:10Pages:5
Corresponding AuthorDing, R.(rding@ipp.ac.cn)
AbstractTo 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.
Funding OrganizationNational 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
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11675218] ; National Natural Science Foundation of China[11628509]
Funding OrganizationNational 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 Research AreaInstruments & Instrumentation ; Physics
WOS SubjectInstruments & Instrumentation ; Physics, Applied
WOS IDWOS:000449144500180
PublisherAMER INST PHYSICS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/34227
Collection中科院等离子体物理研究所
Corresponding AuthorDing, R.
Affiliation1.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
Recommended Citation
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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