Excitation of RSAEs during Sawteeth-Like Oscillation in EAST

doi:10.1088/0256-307X/38/8/085201

	Excitation of RSAEs during Sawteeth-Like Oscillation in EAST
	Xu, Ming 4; Zhong, Guoqiang 4; Hao, Baolong 5; Shen, Wei 4,6; Hu, Liqun 4; Chen, Wei ; Qiu, Zhiyong 2; Zhang, Xuexi 4; Hu, Youjun 4; Li, Yingying 1,3,4
刊名	CHINESE PHYSICS LETTERS
	2021-09-01
卷号	38
ISSN号	0256-307X
DOI	10.1088/0256-307X/38/8/085201
通讯作者	Zhong, Guoqiang(gqzhong@ipp.ac.cn)
英文摘要	The excitation condition of reversed shear Alfven eigenmodes (RSAEs) has been investigated during sawtooth-like oscillation in the EAST tokamak. The sawtooth-like phenomena can be reproduced in the configuration of reversed magnetic shear, and the threshold gradient of electron temperature is formed accordingly, together with the increasing of the confinement of thermal particles. The distribution function of energetic ions density is altered dramatically when the neutral beam is switched from NBI1L (tangent) to NBI1R (perpendicular), which can be captured by the measurement of radial neutron camera. The RSAEs are excited easily in the vicinity of q (min) (1.99 m <= R <= 2.06 m) for the injection of neutral beam with perpendicular direction, which should be excited by the steep gradient of energetic ions density. Furthermore, the excitation of RSAEs and the formation of threshold gradient of electron temperature can take place concurrently, which means that the neutral beam with perpendicular injection is beneficial for the establishment of internal transport barrier.
资助项目	National MCF Energy R&D Program of China[2019YFE03020000] ; National MCF Energy R&D Program of China[2018YFE0304100] ; National Nature Science Foundation of China[11975267] ; National Nature Science Foundation of China[11975273]
WOS关键词	REVERSED MAGNETIC SHEAR ; CONFINEMENT ; DISCHARGES
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000702527300001
资助机构	National MCF Energy R&D Program of China ; National Nature Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124847]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhong, Guoqiang
作者单位	1.Hebei Key Lab Compact Fus, Langfang 065001, Peoples R China 2.Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China 3.Enn Sci & Technol Dev Co Ltd, Langfang 065001, Peoples R China 4.Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Peoples R China 5.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 6.Southwestern Inst Phys, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ming,Zhong, Guoqiang,Hao, Baolong,et al. Excitation of RSAEs during Sawteeth-Like Oscillation in EAST[J]. CHINESE PHYSICS LETTERS,2021,38.
APA	Xu, Ming.,Zhong, Guoqiang.,Hao, Baolong.,Shen, Wei.,Hu, Liqun.,...&Lyu, Bo.(2021).Excitation of RSAEs during Sawteeth-Like Oscillation in EAST.CHINESE PHYSICS LETTERS,38.
MLA	Xu, Ming,et al."Excitation of RSAEs during Sawteeth-Like Oscillation in EAST".CHINESE PHYSICS LETTERS 38(2021).