First measurements of Hiro currents in vertical displacement event in tokamaks

doi:10.1063/1.4922663

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	First measurements of Hiro currents in vertical displacement event in tokamaks
	Xiong, Hao 1; Xu, Guosheng 1; Wang, Huiqian 1; Zakharov, Leonid E.2; Li, Xujing 3
	2015-06-01
发表期刊	PHYSICS OF PLASMAS
ISSN	1070-664X
卷号	22 期号:6 页码:5
摘要	Specially designed tiles were setup in the 2012 campaign of the Experimental Advanced Superconducting Tokamak (EAST), to directly measure the toroidal surface currents during the disruptions. Hiro currents with direction opposite to the plasma currents have been observed, confirming the sign prediction by the Wall Touching Vertical Mode (WTVM) theory and numerical simulations. During the initial phase of the disruption, when the plasma begins to touch the wall, the surface currents can be excited by WTVM along the plasma facing tile surface, varying with the mode magnitude. The currents are not observed in the cases when the plasma moves away from the tile surface. This discovery addresses the importance of the plasma motion into the wall in vertical disruptions. WTVM, acting as a current generator, forces the Hiro currents to flow through the gaps between tiles. This effect, being overlooked so far in disruption analysis, may damage the edges of the tiles and is important for the ITER device. (C) 2015 AIP Publishing LLC.
DOI	10.1063/1.4922663
语种	英语
资助项目	National Natural Science Foundation of China[11422546] ; National Magnetic Confinement Fusion Science Program of China[2011GB107001] ; National Magnetic Confinement Fusion Science Program of China[2011GB105003] ; U.S. DoE[DE-AC02-09-CH11466]
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000357689500002
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/20293
专题	中国科学院数学与系统科学研究院
通讯作者	Xiong, Hao
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Princeton Univ, PPPL, Princeton, NJ 08543 USA 3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Hao,Xu, Guosheng,Wang, Huiqian,et al. First measurements of Hiro currents in vertical displacement event in tokamaks[J]. PHYSICS OF PLASMAS,2015,22(6):5.
APA	Xiong, Hao,Xu, Guosheng,Wang, Huiqian,Zakharov, Leonid E.,&Li, Xujing.(2015).First measurements of Hiro currents in vertical displacement event in tokamaks.PHYSICS OF PLASMAS,22(6),5.
MLA	Xiong, Hao,et al."First measurements of Hiro currents in vertical displacement event in tokamaks".PHYSICS OF PLASMAS 22.6(2015):5.