Electron temperature fluctuation in the HT-7 tokamak plasma observed by electron cyclotron emission imaging
文献类型：期刊论文
| 作者 | Xu Xiao-Yuan1; Wang Jun1; Yu Yi1; Wen Yi-Zhi1; Yu Chang-Xuan1; Liu Wan-Dong1; Wan Bao-Nian2; Gao Xiang2; Luhmann, N. C.3; Domier, C. W.3 |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 18页码:1153-1160 |
| 关键词 | electron temperature fluctuation electron cyclotron emission imaging Tokamak |
| ISSN号 | 1674-1056 |
| 英文摘要 | The fluctuation of the electron temperature has been measured by using the electron cyclotron emission imaging in the Hefei Tokamak-7 (HT-7) plasma. The electron temperature fluctuation with a broadband spectrum shows that it propagates in the electron diamagnetic drift direction, and the mean poloidal wave-number (k) over bar theta is calculated to be about 1.58 cm(-1), or (k) over bar (theta rho s) approximate to 0.34. It indicates that the fluctuation should come from the electron drift wave turbulence. The linear global scaling of the electron temperature fluctuation with the gradient of electron temperature is consistent with the mixing length scale qualitatively. Evolution of spectrum of the fluctuation during the sawtooth oscillation phases is investigated, and the fluctuation is found to increase with the gradient of electron temperature increasing during most phase of the sawtooth oscillation. The results indicate that the electron temperature gradient is probably the driver of the fluctuation enhancement. The steady heat flux driven by electron temperature fluctuation is estimated and compared with the results from power balance estimation. |
| WOS关键词 | TEXAS EXPERIMENTAL TOKAMAK ; T-E PROFILES ; DENSITY-FLUCTUATIONS ; DIAGNOSTIC SYSTEM ; UPGRADE ; TEXTOR ; TRANSPORT |
| 资助项目 | National Natural Science Foundation of China[10335060] ; PRC-US Fusion Cooperation Program[A-5] ; Chinese Academy of Sciences and Japanese Society of Promotion of Science |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000263912300052 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; PRC-US Fusion Cooperation Program ; Chinese Academy of Sciences and Japanese Society of Promotion of Science |
| 源URL | [http://119.78.100.186/handle/113462/31294]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu Xiao-Yuan |
| 作者单位 | 1.Univ Sci & Technol China, Dept Modern Phys, Key Lab Plasma Phys, Chinese Acad Sci, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA |
| 推荐引用方式 GB/T 7714 | Xu Xiao-Yuan,Wang Jun,Yu Yi,et al. Electron temperature fluctuation in the HT-7 tokamak plasma observed by electron cyclotron emission imaging[J]. CHINESE PHYSICS B,2009,18:1153-1160. |
| APA | Xu Xiao-Yuan.,Wang Jun.,Yu Yi.,Wen Yi-Zhi.,Yu Chang-Xuan.,...&Zuowei Shen.(2009).Electron temperature fluctuation in the HT-7 tokamak plasma observed by electron cyclotron emission imaging.CHINESE PHYSICS B,18,1153-1160. |
| MLA | Xu Xiao-Yuan,et al."Electron temperature fluctuation in the HT-7 tokamak plasma observed by electron cyclotron emission imaging".CHINESE PHYSICS B 18(2009):1153-1160. |
入库方式： OAI收割
来源：近代物理研究所
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