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Nonlinear mode couplings between geodesic acoustic mode and toroidal Alfven eigenmodes in the EAST tokamak

文献类型：期刊论文

作者Zhu, Xiang4; Zeng, Long3; Qiu, Zhiyong1; Lin, Shiyao3; Zhang, Tao3; Bao, Jian2; Hu, Youjun3; Tang, Tian3; Liu, Haiqing3; Kong, Defeng3
刊名PHYSICS OF PLASMAS
出版日期2022-06-01
卷号29
ISSN号1070-664X
DOI10.1063/5.0088839
通讯作者Zeng, Long(zenglong@ipp.ac.cn) ; Qiu, Zhiyong(zqiu@zju.edu.cn)
英文摘要Multiple toroidal Alfven eigenmodes (TAEs) driven unstable by energetic electrons and a geodesic acoustic mode (GAM) have been successively observed in the Experimental Advanced Superconducting Tokamak (EAST) low-density Ohmic discharges. Nonlinear mode couplings among these modes are conclusively identified. Theoretical analysis suggests that the coupling of simultaneously driven TAEs is the mechanism for GAM excitation. These results experimentally show the potential role of nonlinear mode coupling to the saturation of energetic-particle driven TAE instability, which may nonlinearly transfer energy of energetic particles to bulk plasma and heat fuel ions via low frequency mode such as GAM. Published under an exclusive license by AIP Publishing.
WOS关键词INSTABILITY ; PARTICLES ; PROFILE ; WAVES
资助项目National Key R&D Program of China[2017YFE0301205] ; National Key R&D Program of China[2019YFE03040004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[Y2021116] ; National Natural Science Foundation of China[12075155] ; National Natural Science Foundation of China[12105186] ; Users of Excellence program of Hefei Science Center CAS[2021HSC-UE016]
WOS研究方向Physics
语种英语
出版者AIP Publishing
WOS记录号WOS:000810499500004
资助机构National Key R&D Program of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Users of Excellence program of Hefei Science Center CAS
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131295]  
专题中国科学院合肥物质科学研究院
通讯作者Zeng, Long; Qiu, Zhiyong
作者单位1.Zhejiang Univ, Inst Fus Theory & Simulat, Dept Phys, Hangzhou 310027, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
4.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Xiang,Zeng, Long,Qiu, Zhiyong,et al. Nonlinear mode couplings between geodesic acoustic mode and toroidal Alfven eigenmodes in the EAST tokamak[J]. PHYSICS OF PLASMAS,2022,29.
APA Zhu, Xiang.,Zeng, Long.,Qiu, Zhiyong.,Lin, Shiyao.,Zhang, Tao.,...&Lin, Xiaodong.(2022).Nonlinear mode couplings between geodesic acoustic mode and toroidal Alfven eigenmodes in the EAST tokamak.PHYSICS OF PLASMAS,29.
MLA Zhu, Xiang,et al."Nonlinear mode couplings between geodesic acoustic mode and toroidal Alfven eigenmodes in the EAST tokamak".PHYSICS OF PLASMAS 29(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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