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

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

	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 ; Lyu, B.1; Zhao, H.1 ; Liu, Y.1 ; Zhang, T.1 ; Li, G.1 ; Qian, J.1; Xu, L.1 ; Chu, N.1 ; Wang, H. H.1; Shi, T.1; He, K.1; Chen, D.1; Shen, B.1; Gong, X.1; Ji, X.1 ; Wang, S.1; Qi, M.1; Yuan, Q.1; Sheng, Z.1; Gao, G.1 ; Song, Y.1; Fu, P.1 ; Wan, B.1; EAST Contributors
	2017-03-01
发表期刊	NUCLEAR FUSION
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.
文章类型	Article
关键词	Resonant Magnetic Perturbation Elm Control Edge Stochasticity Tokamak
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1088/1741-4326/57/3/036007
关键词[WOS]	ACTIVE FEEDBACK STABILIZATION ; RESISTIVE WALL MODE ; HIGH-BETA ; DIII-D ; PLASMA ; COILS
收录类别	SCI
语种	英语
项目资助者	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)
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000390769600007
引用统计	被引频次：63[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31718
专题	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
第一作者单位	中科院等离子体物理研究所
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.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Edge localized mode （4176KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载