Observation of TAE mode driven by off-axis ECRH induced barely trapped energetic electrons in EAST tokamak

doi:10.1088/1741-4326/abe4b1

	Observation of TAE mode driven by off-axis ECRH induced barely trapped energetic electrons in EAST tokamak
	Chu,N.2; Sun,Y.2; Shen,B.2; Hu,Y.J.2; Gu,S.2,3; Jia,M.2; Wang,H.H.2; Shi,T.H.2; Bao,J.4; Duan,Y.M.2
刊名	Nuclear Fusion
	2021-03-12
卷号	61
关键词	Alfvén eigenmode energetic electrons electron cyclotron resonance heating transport
ISSN号	0029-5515
DOI	10.1088/1741-4326/abe4b1
通讯作者	Sun,Y.()
英文摘要	AbstractA toroidal Alfvén eigenmode (TAE) is excited by electron cyclotron resonance heating (ECRH) induced barely trapped energetic electrons in experimental advanced superconducting tokamak . This TAE appears in the low density EAST discharges under pure off-axis ECRH heating. After analysing the ECRH power modulation induced local density and temperature oscillations, the location of this TAE mode and the power deposition of ECRH are determined. This edge localized TAE mode drifts in ion-diamagnetic direction may be driven by barely trapped energetic electrons considering the contribution of poloidal bounce effect in the general wave-particle resonance condition. The experimental observations also demonstrate that ECRH power modulation with fixed frequency could be used as an effective diagnostic tool to study the internal properties of MHD modes as well as particle and heat transports.
资助项目	National Key R&D Programme of China[2017YFE0301100] ; National Natural Science Foundation of China[11875292] ; National Natural Science Foundation of China[11875293] ; National Natural Science Foundation of China[11775262] ; National Natural Science Foundation of China[11905250] ; National Natural Science Foundation of China[11805237] ; National Natural Science Foundation of China[11975273] ; Excellence Project of Hefei Science Centre CAS[2019HSC-UE015] ; Excellence Project of Hefei Science Centre CAS[2018HSC-UE007]
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0029-5515-61-4-ABE4B1
资助机构	National Key R&D Programme of China ; National Natural Science Foundation of China ; Excellence Project of Hefei Science Centre CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120705]
专题	中国科学院合肥物质科学研究院
通讯作者	Sun,Y.
作者单位	1.University of Science and Technology of China, Hefei 230026, China 2.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China 3.General Atomics, PO Box 85608, San Diego, CA 921865608, United States of America 4.The Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
推荐引用方式 GB/T 7714	Chu,N.,Sun,Y.,Shen,B.,et al. Observation of TAE mode driven by off-axis ECRH induced barely trapped energetic electrons in EAST tokamak[J]. Nuclear Fusion,2021,61.
APA	Chu,N..,Sun,Y..,Shen,B..,Hu,Y.J..,Gu,S..,...&Zhou,T.F..(2021).Observation of TAE mode driven by off-axis ECRH induced barely trapped energetic electrons in EAST tokamak.Nuclear Fusion,61.
MLA	Chu,N.,et al."Observation of TAE mode driven by off-axis ECRH induced barely trapped energetic electrons in EAST tokamak".Nuclear Fusion 61(2021).