Elevation of runaway electron current by electron cyclotron resonance heating during disruptions on J-TEXT

doi:10.1088/1361-6587/ac1f69

	Elevation of runaway electron current by electron cyclotron resonance heating during disruptions on J-TEXT
	Bai, W.2; Yan, W.2; Chen, Z. Y.2; Wei, Y. N.3; Tong, R. H.; Lin, Z. F.4; Li, Y.2; Fang, J. G.2; Zhang, X. B.2; Mou, L. K.2
刊名	PLASMA PHYSICS AND CONTROLLED FUSION
	2021-11-01
卷号	63
关键词	runaway current tokamak disruption electron cyclotron resonance heating runaway seeds
ISSN号	0741-3335
DOI	10.1088/1361-6587/ac1f69
通讯作者	Yan, W.(yanwei1090@hust.edu.cn) ; Chen, Z. Y.(zychen@hust.edu.cn)
英文摘要	Runaway electrons represent a serious problem for the reliable operation of future tokamaks. Radio frequency (RF) auxiliary heating can help suppress runaway electrons in the flat-top phase through a reduction in loop voltage. However, if a disruption occurs during RF auxiliary heating, it may lead to an increase in the runaway electron production due to the generation of a suprathermal population with energies in the order of similar to 100 keV. The elevation of runaway current during disruptions by electron cyclotron resonance heating (ECRH) has been investigated on the J-TEXT tokamak. The results show that the conversion efficiency of runaway current increases with increased ECRH power. When the applied ECRH power is at the level of 400 kW, the conversion efficiency of Ohmic to runaway current increases from 35% to 75%, the thermal quench duration is decreased from 0.24 ms to 0.11 ms, and the Absolute Extreme Ultraviolet Spectrometer (AXUV) radiative power and electron density are about two times higher than the cases without ECRH heating.
资助项目	National Key R&D Program of China[2018YFE0309103] ; National Key R&D Program of China[2017YFE0302000] ; National Key R&D Program of China[2017YFE0300501] ; National Magnetic Confinement Fusion Science Program[2015GB111002] ; National Magnetic Confinement Fusion Science Program[2015GB104000] ; National Natural Science Foundation of China[11775089] ; National Natural Science Foundation of China[51821005] ; National Natural Science Foundation of China[11905077] ; National Natural Science Foundation of China[11575068] ; China Postdoctoral Science Foundation[2019M652615]
WOS关键词	MAJOR DISRUPTIONS ; GENERATION ; EMISSION ; DYNAMICS ; PLASMAS ; ECRH
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000739516500001
资助机构	National Key R&D Program of China ; National Magnetic Confinement Fusion Science Program ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127243]
专题	中国科学院合肥物质科学研究院
通讯作者	Yan, W.; Chen, Z. Y.
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, State Key Lab Adv Elect Engn & Technol, Wuhan 430074, Peoples R China 3.SouthWestern Inst Phys, POB 432, Chengdu 610041, Peoples R China 4.Jiangsu Normal Univ, Sch Elect Engn & Automat, Xuzhou 221116, Jiangsu, Peoples R China 5.Forschungszentrum Julich, Inst Energie & Klimaforschung Plasmaphys, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Bai, W.,Yan, W.,Chen, Z. Y.,et al. Elevation of runaway electron current by electron cyclotron resonance heating during disruptions on J-TEXT[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2021,63.
APA	Bai, W..,Yan, W..,Chen, Z. Y..,Wei, Y. N..,Tong, R. H..,...&Team, J-text.(2021).Elevation of runaway electron current by electron cyclotron resonance heating during disruptions on J-TEXT.PLASMA PHYSICS AND CONTROLLED FUSION,63.
MLA	Bai, W.,et al."Elevation of runaway electron current by electron cyclotron resonance heating during disruptions on J-TEXT".PLASMA PHYSICS AND CONTROLLED FUSION 63(2021).