中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Observation of toroidal Alfven eigenmode excited by energetic electrons induced by static magnetic perturbations in the EAST tokamak

文献类型：期刊论文

作者Chu, N.1,2; Sun, Y.1; Gu, S.1,2; Wang, H. H.1; Hu, Y. J.1; Shi, T. H.1; Chen, D. L.1; Gu, X.1,2; He, K. Y.1,2; Jia, M.1,2
刊名NUCLEAR FUSION
出版日期2018-10-01
卷号58期号:10页码:5
ISSN号0029-5515
关键词magnetic perturbation toroidal Alfven eignenmode reconnection magnetic island energetic electron
DOI10.1088/1741-4326/aad70c
通讯作者Sun, Y.(ywsun@ipp.ac.cn)
英文摘要A toroidal Alfven eigenmode (TAE) excited by barely trapped energetic electrons during the application of a static magnetic perturbations (MPs) is observed for the first time in tokamak ohmic heating plasmas. This TAE appears when the current of a static n = 2 MPs exceeds a threshold value, at which a forced n = 2 magnetic reconnection happens. Here, n is the toroidal mode number. This TAE is located near the plasma edge, which agrees with the calculation of the TAE gap. It propagates in the ion diamagnetic direction and has a dominant toroidal mode number n = 2. The frequency of the TAE is consistent with the precessional frequency of the barely trapped energetic electrons with energy around 150 keV. An increase of the hard x-ray emission intensity in this energy range is observed just after the n = 2 magnetic reconnection. The energetic electrons may be accelerated by the magnetic islands formed after reconnection. The TAE is stabilized after a reduction in the contents of energetic electrons. This observation suggests that the application of static MPs may provide us with a novel method to actively control Alfven eigenmodes in fusion plasmas.
WOS关键词DIII-D TOKAMAK ; PLASMAS ; RECONNECTION ; EXCITATION ; MODE
资助项目National Natural Science Foundation of China[11475224] ; National Natural Science Foundation of China[11505235] ; National Natural Science Foundation of China[11475002] ; National Natural Science Foundation of China[11775262]
WOS研究方向Physics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000442643400001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/37928]  
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.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Chu, N.,Sun, Y.,Gu, S.,et al. Observation of toroidal Alfven eigenmode excited by energetic electrons induced by static magnetic perturbations in the EAST tokamak[J]. NUCLEAR FUSION,2018,58(10):5.
APA Chu, N..,Sun, Y..,Gu, S..,Wang, H. H..,Hu, Y. J..,...&Zhou, R. J..(2018).Observation of toroidal Alfven eigenmode excited by energetic electrons induced by static magnetic perturbations in the EAST tokamak.NUCLEAR FUSION,58(10),5.
MLA Chu, N.,et al."Observation of toroidal Alfven eigenmode excited by energetic electrons induced by static magnetic perturbations in the EAST tokamak".NUCLEAR FUSION 58.10(2018):5.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。