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
Impact of the non-axisymmetric SOL current driven by a biased electrode on the diverted J-TEXT plasma

文献类型：期刊论文

作者Li, Shuhao2; Wang, Nengchao2; Ding, Yonghua2; Liang, Yunfeng1,2,5; Yang, Qinghu2; Mao, Feiyue2; Xu, Xin2; Ren, Zhengkang2; Zhao, Chuanxu2; Huang, Zhuo4
刊名PLASMA PHYSICS AND CONTROLLED FUSION
出版日期2022-07-01
卷号64
ISSN号0741-3335
关键词SOL current strike points splitting divertor configuration RMPs
DOI10.1088/1361-6587/ac72bf
通讯作者Wang, Nengchao(wangnc@hust.edu.cn) ; Ding, Yonghua(yhding@hust.edu.cn)
英文摘要It is observed in EAST that the non-axisymmetric helical currents induced by lower hybrid waves (LHWs) in the scrape-off layer (SOL) can produce resonant magnetic perturbations (RMPs), hence mitigate edge-localized modes (ELMs) significantly and cause the strike points splitting. In this work, the non-axisymmetric SOL current driven by an alternative method, i.e. biased electrode, is shown to influence the plasma boundary, especially the strike points, in the divertor configuration on J-TEXT. With positive bias to the electrode, the upper strike points on the divertor target plate is observed to split as captured by the visible camera. Such splitting is usually observed with the RMPs. In addition, the SOL plasma parameters measured by the reciprocating probe, such as floating potential (V (f)), electron temperature (T (e)), and ion saturation current (I (s)), are significantly altered by applying modulation bias, which is closely related to the SOL current. A SOL current model has been extended from the limiter configuration version to the poloidal divertor configuration, and the magnetic field generated by SOL current and the change of magnetic topological structure of plasma boundary can be simulated. The simulation results shows that the magnetic perturbation generated by the SOL current can induce the lobes near the X-point, which is three-dimensional asymmetric structure, and shows good agreement with the experimental observation. The active control of the boundary magnetic topology indicates that the SOL current is capable of generating strong magnetic perturbations, and hence might be sufficient for the control of ELMs.
资助项目National Key R&D Program of China[2017YFE0301100] ; National Natural Science Foundation of China[11905078] ; National Natural Science Foundation of China[12075096] ; National Natural Science Foundation of China[12047526] ; National Natural Science Foundation of China[51821005] ; Fundamental Research Funds for the Central Universities[2020kfyXJJS003]
WOS研究方向Physics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000804409900001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130999]  
专题中国科学院合肥物质科学研究院
通讯作者Wang, Nengchao; Ding, Yonghua
作者单位1.Chinese Acad Sci, Inst Plasma Phys, 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 Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
3.Fed Univ Dutse, Phys Dept, Dutse, Jigawa, Nigeria
4.South Cent Minzu Univ, Coll Comp Sci, Wuhan 430074, Peoples R China
5.Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany
推荐引用方式
GB/T 7714		 Li, Shuhao,Wang, Nengchao,Ding, Yonghua,et al. Impact of the non-axisymmetric SOL current driven by a biased electrode on the diverted J-TEXT plasma[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2022,64.
APA Li, Shuhao.,Wang, Nengchao.,Ding, Yonghua.,Liang, Yunfeng.,Yang, Qinghu.,...&Pan, Yuan.(2022).Impact of the non-axisymmetric SOL current driven by a biased electrode on the diverted J-TEXT plasma.PLASMA PHYSICS AND CONTROLLED FUSION,64.
MLA Li, Shuhao,et al."Impact of the non-axisymmetric SOL current driven by a biased electrode on the diverted J-TEXT plasma".PLASMA PHYSICS AND CONTROLLED FUSION 64(2022).

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。