Axisymmetric Alfven modes induced by energetic particles in tokamak plasmas
文献类型：期刊论文
| 作者 | Zhou, Deng2 ; Yang, Xiaoqing2; Ming, Yue1; Gan, Chenxiao2,3
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 29 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0084856 |
| 通讯作者 | Zhou, Deng(dzzhou@ipp.ac.cn) |
| 英文摘要 | Axisymmetric Alfven modes in the presence of energetic ions are studied using the MHD-kinetic hybrid model for tokamak plasmas. The general dispersion relation of continuous spectra is derived for the coupled m = 0 , +/- 2 poloidal harmonics. The dispersion relation is analyzed for the single pitch angle slowing down distribution of well circulating energetic particles. In addition to the conventional axisymmetric Alfven modes existing in the pure MHD description, axisymmetric Alfven modes are also induced by the energetic ions if the pressure ratio between the energetic ions and the magnetic energy density is larger than a critical value, and the transit frequency of the energetic ions is in resonance with the emerging Alfven modes. The existence of global Alfven eigenmodes is also discussed.& nbsp;Published under an exclusive license by AIP Publishing. |
| WOS关键词 | FREQUENCY MODES ; EXPLANATION ; EXCITATION ; WAVE |
| 资助项目 | National Key R&D Program of China[2019YFE03050002] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000790491000004 |
| 出版者 | AIP Publishing |
| 资助机构 | National Key R&D Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131559]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhou, Deng |
| 作者单位 | 1.Yantai Univ, Sch Optoelect Informat Sci & Technol, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Zhou, Deng,Yang, Xiaoqing,Ming, Yue,et al. Axisymmetric Alfven modes induced by energetic particles in tokamak plasmas [J]. PHYSICS OF PLASMAS,2022,29. |
| APA |
Zhou, Deng,Yang, Xiaoqing,Ming, Yue,&Gan, Chenxiao.(2022). Axisymmetric Alfven modes induced by energetic particles in tokamak plasmas .PHYSICS OF PLASMAS,29. |
| MLA |
Zhou, Deng,et al." Axisymmetric Alfven modes induced by energetic particles in tokamak plasmas ".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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