Evolution of the high-field-side radiation belts during the neon seeding plasma discharge in EAST tokamak

doi:10.1088/1674-1056/ac935a

	Evolution of the high-field-side radiation belts during the neon seeding plasma discharge in EAST tokamak
	Xu, Ji-Chan 1; Wang, Liang 2; Xu, Guo-Sheng 2; Duan, Yan-Min 2; Meng, Ling-Yi 2; Li, Ke-Dong 2; Ding, Fang 2; Liang, Rui-Rong 2; Liu, Jian-Bin 2
刊名	CHINESE PHYSICS B
	2022-09-01
卷号	31
关键词	high-field-side radiation belts neon seeding EAST
ISSN号	1674-1056
DOI	10.1088/1674-1056/ac935a
通讯作者	Xu, Ji-Chan(jichanxu@aust.edu.cn)
英文摘要	Divertor detachment achieved by injecting impurities or increasing density is always accompanied with various local radiation phenomena in the boundary or core plasma. This paper presents the formation and evolution of the high-field-side (HFS) radiation belts during the neon seeding plasma discharge in upper single null configuration with two directions of toroidal magnetic field in EAST tokamak. The neon mixed with deuterium seeding can induce the divertor detachment with strong radiation belts in the HFS scrape-off layer (SOL) region. With the increase of the radiation power, the plasma discharge will transit from H-mode to L-mode, and meanwhile the radiation belts move away from the near X-point to HFS SOL. When the radiation power is high enough, the radiation belts begin to move further to the other X-point along the HFS SOL, and even cause plasma disruption. The results indicate that the behavior of the radiation belts is related to the radiation power, plasma confinement performance and state of divertor detachment, which is useful for developing better feedback control methods to achieve high-performance radiative divertor operation mode.
资助项目	National Magnetic Confinement Fusion Energy Research and Development Program of China[2017YFE0301300] ; National Magnetic Confinement Fusion Energy Research and Development Program of China[2019YFE03030000] ; National Natural Science Foundation of China[12005004] ; National Natural Science Foundation of China[11922513] ; National Natural Science Foundation of China[U19A20113] ; Anhui Provincial Natural Science Foundation[2008085QA38]
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000863496600001
资助机构	National Magnetic Confinement Fusion Energy Research and Development Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129163]
专题	中国科学院合肥物质科学研究院
通讯作者	Xu, Ji-Chan
作者单位	1.Anhui Univ Sci & Technol, Sch Mech Engn, Huainan 232001, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ji-Chan,Wang, Liang,Xu, Guo-Sheng,et al. Evolution of the high-field-side radiation belts during the neon seeding plasma discharge in EAST tokamak[J]. CHINESE PHYSICS B,2022,31.
APA	Xu, Ji-Chan.,Wang, Liang.,Xu, Guo-Sheng.,Duan, Yan-Min.,Meng, Ling-Yi.,...&Liu, Jian-Bin.(2022).Evolution of the high-field-side radiation belts during the neon seeding plasma discharge in EAST tokamak.CHINESE PHYSICS B,31.
MLA	Xu, Ji-Chan,et al."Evolution of the high-field-side radiation belts during the neon seeding plasma discharge in EAST tokamak".CHINESE PHYSICS B 31(2022).