Theoretical analysis of helicon wave current drive in EAST with high beta(e) operation
文献类型：期刊论文
| 作者 | Li, Xinxia1,2 ; Liu, Hongbo1; Xiang, Nong2; Li, Miaohui2
|
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2020-10-30 |
| 卷号 | 384 |
| ISSN号 | 0375-9601 |
| 关键词 | Tokamak Helicon wave Plasma current drive |
| DOI | 10.1016/j.physleta.2020.126779 |
| 通讯作者 | Li, Xinxia(li_xx@usc.edu.cn) |
| 英文摘要 | Recent experiments of Experimental Advanced Superconducting Tokomak (EAST) have successfully demonstrated a long-pulse steady-state scenario with improved plasma performance through integrated operation. The helicon wave (fast wave at omega > 20 omega(ci)) current drive in the EAST plasma with high beta(e) operation is studied numerically by means of GENRAY/CQL3D treatment. A theoretical analysis of the wave damping factor shows that electron Landau damping dominates the wave absorption process and effective current drive occurs in the central plasmas for low beta(e) operation. High beta (similar to 1.3) leads to even stronger Landau damping single-path wave absorption is found. The numerical calculation predicts a broad distribution of current drive with good efficiency in EAST plasma. Moreover, the current drive efficiency is proven to be sensitive to the plasma parameters, specially the initial parallel index of refraction n(//). A possible scenario of helicon wave current drive is proposed for the high beta(e) EAST operation. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | TOKAMAK |
| 资助项目 | program of National Key Research and Development Program of China[2017YFE0300406] ; National Natural Science Foundation of China[11775108] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000565740000008 |
| 资助机构 | program of National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70284]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Xinxia |
| 作者单位 | 1.Univ South China, Dept Nucl Phys, Hengyang 421001, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xinxia,Liu, Hongbo,Xiang, Nong,et al. Theoretical analysis of helicon wave current drive in EAST with high beta(e) operation[J]. PHYSICS LETTERS A,2020,384. |
| APA | Li, Xinxia,Liu, Hongbo,Xiang, Nong,&Li, Miaohui.(2020).Theoretical analysis of helicon wave current drive in EAST with high beta(e) operation.PHYSICS LETTERS A,384. |
| MLA | Li, Xinxia,et al."Theoretical analysis of helicon wave current drive in EAST with high beta(e) operation".PHYSICS LETTERS A 384(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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