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Excitation of RSAEs during Sawteeth-Like Oscillation in EAST | |
Xu, Ming1; Zhong, Guoqiang1; Hao, Baolong2; Shen, Wei1,3; Hu, Liqun1; Chen, Wei; Qiu, Zhiyong4; Zhang, Xuexi1; Hu, Youjun1; Li, Yingying1,5,6; Zhao, Hailin1; Liu, Haiqing1; Lyu, Bo1 | |
2021-09-01 | |
发表期刊 | CHINESE PHYSICS LETTERS |
ISSN | 0256-307X |
通讯作者 | Zhong, Guoqiang(gqzhong@ipp.ac.cn) |
摘要 | The excitation condition of reversed shear Alfven eigenmodes (RSAEs) has been investigated during sawtooth-like oscillation in the EAST tokamak. The sawtooth-like phenomena can be reproduced in the configuration of reversed magnetic shear, and the threshold gradient of electron temperature is formed accordingly, together with the increasing of the confinement of thermal particles. The distribution function of energetic ions density is altered dramatically when the neutral beam is switched from NBI1L (tangent) to NBI1R (perpendicular), which can be captured by the measurement of radial neutron camera. The RSAEs are excited easily in the vicinity of q (min) (1.99 m <= R <= 2.06 m) for the injection of neutral beam with perpendicular direction, which should be excited by the steep gradient of energetic ions density. Furthermore, the excitation of RSAEs and the formation of threshold gradient of electron temperature can take place concurrently, which means that the neutral beam with perpendicular injection is beneficial for the establishment of internal transport barrier. |
DOI | 10.1088/0256-307X/38/8/085201 |
关键词[WOS] | REVERSED MAGNETIC SHEAR ; CONFINEMENT ; DISCHARGES |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National MCF Energy R&D Program of China[2019YFE03020000] ; National MCF Energy R&D Program of China[2018YFE0304100] ; National Nature Science Foundation of China[11975267] ; National Nature Science Foundation of China[11975273] |
项目资助者 | National MCF Energy R&D Program of China ; National Nature Science Foundation of China |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000702527300001 |
出版者 | IOP PUBLISHING LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/124848 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Zhong, Guoqiang |
作者单位 | 1.Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 3.Southwestern Inst Phys, Chengdu 610041, Peoples R China 4.Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China 5.Enn Sci & Technol Dev Co Ltd, Langfang 065001, Peoples R China 6.Hebei Key Lab Compact Fus, Langfang 065001, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Ming,Zhong, Guoqiang,Hao, Baolong,et al. Excitation of RSAEs during Sawteeth-Like Oscillation in EAST[J]. CHINESE PHYSICS LETTERS,2021,38. |
APA | Xu, Ming.,Zhong, Guoqiang.,Hao, Baolong.,Shen, Wei.,Hu, Liqun.,...&Lyu, Bo.(2021).Excitation of RSAEs during Sawteeth-Like Oscillation in EAST.CHINESE PHYSICS LETTERS,38. |
MLA | Xu, Ming,et al."Excitation of RSAEs during Sawteeth-Like Oscillation in EAST".CHINESE PHYSICS LETTERS 38(2021). |
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