First measurements of Hiro currents in vertical displacement event in tokamaks

doi:10.1063/1.4922663

	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
刊名	PHYSICS OF PLASMAS
	2015-06-01
卷号	22 期号:6 页码:5
ISSN号	1070-664X
DOI	10.1063/1.4922663
英文摘要	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.
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
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000357689500002
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/20292]
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.