Simulation of the multi-channel motional Stark effect diagnostic on EAST Tokamak

doi:10.1016/j.fusengdes.2020.111516

	Simulation of the multi-channel motional Stark effect diagnostic on EAST Tokamak
	Yu, Qingjiang 2,3; Fu, Jia 3; Liao, Ken 1; Li, Yichao 3; Chen, Dong 2; Li, Yingying 3; Rowan, William 1; Huang, He 1; Zhang, Hongming 3; Wang, Fudi 3
刊名	FUSION ENGINEERING AND DESIGN
	2020-04-01
卷号	153
关键词	Neutram beam injection Current density profile Motional stark effect Polarization
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2020.111516
通讯作者	Fu, Jia(fujia@ipp.ac.cn) ; Lyu, Bo(blu@ipp.ac.cn)
英文摘要	A multi-channel motional Stark effect (MSE) diagnostic is under development for providing accurate information of the internal magnetic field on EAST tokamak. To assist the ongoing design and implementation of the diagnostic, an optimization study is performed using ALCBEAM and NBASS codes. The distribution of the attenuated neutral beam atom density is obtained by ALCBEAM for plasma parameters of T-e = 2.2keV, n(eo) = 1.6 x 10(13) cm(-3). The MSE spectrum, which is emitted from the beam-plasma interaction and collected by a double-column fiber array with a total number of 19 fibers, is simulated by NBASS on the condition that B-T = 2.256 T. The intensity of D-alpha beam emission for 29 channels is obtained, and the radial spatial resolution ranges from 0.9 cm to 2.3 cm (from edge to core). The influences of the filter's bandwidth on polarization and transmission are also considered and it is found that 50 % of the polarization and transmission can be achieved when the filter's bandwidth is around 0.48 nm. For EAST's MSE system, a 0.48 nm filter is used, which is predicted to have sufficiently high polarization and transmission efficiencies to obtain high-quality MSE signals. When the high voltage of the neutral beam changes, the center wavelength of the spectra shifts. The corresponding central wavelengths for different high voltages of 50 kV, 55 kV and 60 kV are calculated as a function of the major radius. This can serve as a reference for the deployment of the MSE diagnostic.
资助项目	National Magnetic Confinement Fusion Science Program of China[2017YFE0300503] ; National Magnetic Confinement Fusion Science Program of China[2017YFE0301300] ; Anhui Provincial Natural Science Foundation[1908085J01] ; National Natural Science Foundation of China[11605242] ; Users with Excellence Program of Hefei Science Center CAS[2019HSC-UE011] ; Key Program of Research and Development of Hefei Science Center CAS[2017HSC-KPRD002]
WOS关键词	POLARIMETRY ; PROFILES
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000518408500032
资助机构	National Magnetic Confinement Fusion Science Program of China ; Anhui Provincial Natural Science Foundation ; National Natural Science Foundation of China ; Users with Excellence Program of Hefei Science Center CAS ; Key Program of Research and Development of Hefei Science Center CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103823]
专题	中国科学院合肥物质科学研究院
通讯作者	Fu, Jia; Lyu, Bo
作者单位	1.Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA 2.Univ Sci & Technol China, Dept Engn & Appl Phys, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yu, Qingjiang,Fu, Jia,Liao, Ken,et al. Simulation of the multi-channel motional Stark effect diagnostic on EAST Tokamak[J]. FUSION ENGINEERING AND DESIGN,2020,153.
APA	Yu, Qingjiang.,Fu, Jia.,Liao, Ken.,Li, Yichao.,Chen, Dong.,...&Lyu, Bo.(2020).Simulation of the multi-channel motional Stark effect diagnostic on EAST Tokamak.FUSION ENGINEERING AND DESIGN,153.
MLA	Yu, Qingjiang,et al."Simulation of the multi-channel motional Stark effect diagnostic on EAST Tokamak".FUSION ENGINEERING AND DESIGN 153(2020).