Edge localized mode control using n=1 resonant magnetic perturbation in the EAST tokamak

doi:10.1088/1741-4326/57/3/036007

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

	Edge localized mode control using n=1 resonant magnetic perturbation in the EAST tokamak
	Sun, Y.1 ; Jia, M.1; Zang, Q.1 ; Wang, L.1; Liang, Y.1,2; Liu, Y. Q.3; Yang, X.4; Guo, W.1; Gu, S.1; Li, Y.1
刊名	NUCLEAR FUSION
	2017-03-01
卷号	57 期号:3 页码:1-10
关键词	Resonant Magnetic Perturbation Elm Control Edge Stochasticity Tokamak
DOI	10.1088/1741-4326/57/3/036007
文献子类	Article
英文摘要	A set of in-vessel resonant magnetic perturbation (RMP) coil has been recently installed in EAST. It can generate a range of spectrum, and there is a relatively large window for edge localized mode ( ELM) control according to the vacuum field modeling of the edge magnetic island overlapping area. Observation of mitigation and suppression of ELM in slow rotating plasmas during the application of an n = 1 RMP is presented in this paper. Strong ELM mitigation effect is observed in neutral beam injection heating plasmas. The ELM frequency increases by a factor of 5, and the crash amplitude and the particle flux are effectively reduced by a similar factor. Clear density pump-out and magnetic braking effects are observed during the application of RMP. Footprint splitting is observed during ELM mitigation and agrees well with vacuum field modelling. Strong ELM mitigation happens after a second sudden drop of plasma density, which indicates the possible effect due to field penetration of the resonant harmonics near the pedestal top, where the electron perpendicular rotation becomes flat and close to zero after the application of RMP. ELM suppression is achieved in a resonant window during the scan of the n = 1 RMP spectrum in radio-frequency (RF) dominant heating plasmas. The best spectrum for ELM suppression is consistent with the resonant peak of RMP by taking into account of linear magnetohydrodynamics plasma response. There is no mode locking during the application of n = 1 RMP in ELMy H-mode plasmas, although the maximal coil current is applied.
WOS关键词	ACTIVE FEEDBACK STABILIZATION ; RESISTIVE WALL MODE ; HIGH-BETA ; DIII-D ; PLASMA ; COILS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000390769600007
资助机构	National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Natural Science Foundation of China(11475224 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; National Magnetic Confinement Fusion Science Program of China(2013GB102000 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 11205199 ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 2013GB106003B ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 11575236) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000) ; 2012GB105000)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31718]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China 2.Forschungszentrum Julich, Assoc EURATOM FZJ, Inst Energy & Climate Res Plasma Phys, Trilateral Euregio Cluster, D-52425 Julich, Germany 3.CCFE Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England 4.Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Sun, Y.,Jia, M.,Zang, Q.,et al. Edge localized mode control using n=1 resonant magnetic perturbation in the EAST tokamak[J]. NUCLEAR FUSION,2017,57(3):1-10.
APA	Sun, Y..,Jia, M..,Zang, Q..,Wang, L..,Liang, Y..,...&EAST Contributors.(2017).Edge localized mode control using n=1 resonant magnetic perturbation in the EAST tokamak.NUCLEAR FUSION,57(3),1-10.
MLA	Sun, Y.,et al."Edge localized mode control using n=1 resonant magnetic perturbation in the EAST tokamak".NUCLEAR FUSION 57.3(2017):1-10.