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First measurements of Hiro currents in vertical displacement event in tokamaks
Xiong, Hao1; Xu, Guosheng1; Wang, Huiqian1; Zakharov, Leonid E.2; Li, Xujing3
2015-06-01
Source PublicationPHYSICS OF PLASMAS
ISSN1070-664X
Volume22Issue:6Pages:5
AbstractSpecially 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.
DOI10.1063/1.4922663
Language英语
Funding ProjectNational 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 Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000357689500002
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/20293
Collection中国科学院数学与系统科学研究院
Affiliation1.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
Recommended Citation
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.
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