Observation of tungsten impurities induced 2/1 snake fluctuations and their interactions with discrete double BAE pairs on EAST

doi:10.1088/1741-4326/aae8b7

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Observation of tungsten impurities induced 2/1 snake fluctuations and their interactions with discrete double BAE pairs on EAST
	Xu, Ming 1; Zhou, T.2; Xu, L. Q.1; Hu, L. Q.1; Duan, Y. M.1; Liu, Y.1; Zhang, L.1; Shi, T. H.1; Li, Y. Y.1; Lyu, B.1
刊名	NUCLEAR FUSION
	2018-12-01
卷号	58 期号:12 页码:8
关键词	2/1 snake fluctuations discrete double BAEs discrete spectra tearing modes
ISSN号	0029-5515
DOI	10.1088/1741-4326/aae8b7
通讯作者	Xu, Ming(mxu@ipp.ac.cn) ; Zhou, T.(tczhou@hit.edu.cn)
英文摘要	The snake perturbations around q = 2 surface with strong poloidal asymmetry are frequently observed on EAST after the injection of high-Z impurities. A new pair of Beta-induced Alfven eigenmodes (BAEs) with lower frequencies also come along with the 2/1 snake fluctuations, in addition to the conventional BAE pair that accompany the pure 2/1 tearing modes (TMs) on EAST, which have already been investigated (Xu et al 2013 Plasma Phys. Control. Fusion 55 065002). The radial structures of the intensities of the snake perturbations and the two BAE pairs arc mapped out for the first time, indicating that these BAE quartet are discrete modes over the radial extension and are situated slightly outside the annulus of TM activities but centered at slightly different positions. The constant frequency spectra of the BAEs are explained as the eigen-solutions of the radial differential equation for the global modes, and the rich multiplicity of BAEs is attributed to various levels of BAE continuum splittings when more detailed physics are taken into consideration.
资助项目	National Magnetic Confinement Fusion Science Program of China[2015GB110005] ; National Magnetic Confinement Fusion Science Program of China[2015GB101002] ; National Magnetic Confinement Fusion Science Program of China[2015GB110004B] ; National Nature Science Foundation of China[11422546] ; National Nature Science Foundation of China[11575249] ; National Nature Science Foundation of China[11575235] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSWSLH001] ; Hefei Science Center CAS[2017HSC-IU005]
WOS关键词	INDUCED ALFVEN EIGENMODES ; PELLET INJECTION ; TOKAMAK ; PLASMAS ; MODES ; IONS
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000449169600001
资助机构	National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/39876]
专题	合肥物质科学研究院_中科院等离子体物理研究所
通讯作者	Xu, Ming; Zhou, T.
作者单位	1.Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ming,Zhou, T.,Xu, L. Q.,et al. Observation of tungsten impurities induced 2/1 snake fluctuations and their interactions with discrete double BAE pairs on EAST[J]. NUCLEAR FUSION,2018,58(12):8.
APA	Xu, Ming.,Zhou, T..,Xu, L. Q..,Hu, L. Q..,Duan, Y. M..,...&Wan, B. N..(2018).Observation of tungsten impurities induced 2/1 snake fluctuations and their interactions with discrete double BAE pairs on EAST.NUCLEAR FUSION,58(12),8.
MLA	Xu, Ming,et al."Observation of tungsten impurities induced 2/1 snake fluctuations and their interactions with discrete double BAE pairs on EAST".NUCLEAR FUSION 58.12(2018):8.