Estimation of the sheath power dissipation induced by ion cyclotron resonance heating
An, Xin1,2; Ou, Jing1,3; Men, Zongzheng1,2
刊名PLASMA SCIENCE & TECHNOLOGY
2020
关键词PLASMA-SHEATH RF ANTENNA sheath power dissipation RF sheath energetic ion disturbance current
ISSN号1009-0630
DOI10.1088/2058-6272/ab77d2
英文摘要

During ion cyclotron resonance heating, the sheath power dissipation caused by ion acceleration in the radio frequency (RF) sheath is one of the main causes of RF power loss in the tokamak edge region. To estimate the power dissipation of an RF sheath in the ion cyclotron range of frequency (ICRF), a 1D fluid model for the multi-component plasma sheath driven by a sinusoidal disturbance current in the ICRF is presented. By investigation of the sheath potential and ion flux at the wall, it is shown that the larger frequency and lower amplitude of the disturbance current can cause smaller sheath power dissipation. The effect of the energetic ion on the sheath power dissipation depends on the disturbance current. For large amplitude of disturbance current, the increase in the concentration and energy of the energetic ion leads to a decrease in sheath power dissipation. While for a small disturbance current, the sheath power dissipation demonstrates non-monotonic variation with the concentration and energy of the energetic ion. In addition, the sheath power dissipation is found to have a small increase in the presence of light impurity ions with low valence.

资助项目[National Natural Science Foundation of China]
WOS关键词PLASMA-SHEATH ; RF ; ANTENNA
WOS研究方向Physics
语种英语
CSCD记录号CSCD:6745292
出版者IOP PUBLISHING LTD
WOS记录号WOS:000528936500001
资助机构National Natural Science Foundation of China
内容类型期刊论文
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/48841]  
专题中国科学院合肥物质科学研究院
通讯作者Ou, Jing
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714
An, Xin,Ou, Jing,Men, Zongzheng. Estimation of the sheath power dissipation induced by ion cyclotron resonance heating[J]. PLASMA SCIENCE & TECHNOLOGY,2020.
APA An, Xin,Ou, Jing,&Men, Zongzheng.(2020).Estimation of the sheath power dissipation induced by ion cyclotron resonance heating.PLASMA SCIENCE & TECHNOLOGY.
MLA An, Xin,et al."Estimation of the sheath power dissipation induced by ion cyclotron resonance heating".PLASMA SCIENCE & TECHNOLOGY (2020).
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。


©版权所有 ©2017 CSpace - Powered by CSpace