| Observation of Radial Propagation of Electrostatic Fluctuations in Edge Plasma of the Sino United Spherical Tokamak |
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| 引用本文： | 张国平 何也熙 王文浩 高喆 曾立 解丽凤 冯春华. Observation of Radial Propagation of Electrostatic Fluctuations in Edge Plasma of the Sino United Spherical Tokamak[J]. 中国物理快报, 2004, 21(12): 2469-2471 |
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| 作者姓名： | 张国平 何也熙 王文浩 高喆 曾立 解丽凤 冯春华 |
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| 作者单位： | [1]DepartmentofEngineeringPhysics,TsinghuaUniversity,Beijing100084 [2]InstituteofPhysics,ChineseAcademyofSciences,Beijing100080 |
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| 摘 要： | Radial propagation of electrostatic fluctuations in the edge plasma of Sino-United Spherical Tokamak (SUNIST) has been measured using Langmuir probes. The propagation characteristics of the floating potential fluctuations are analysed by the two-point correlation technique. The results show radially outward propagation of the turbulent fluctuations at all measured radial positions. The power-average wavenumber profile is approximately constant in plasma edge region and suddenly increases to the limiter. These results are in good agreement with the model predictions proposed by Mattor which suggests that the drift wave propagation may be a source of edge turbulence.
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| 关 键 词： | 等离子体 托卡马克装置 径向波辐射 静电波动 |
Radiation Energy Loss from Laser-Heated Shenguang-II Hohlraums |
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| CHANG Tie-Qiang,WANG Guang-Yu,DUAN Qing-Sheng,PEI Wen-Bing,GU Pei-Jun,ZHANG Xing-Hong,DING Yong-Kun,ZHENG Zhi-Jian,YANG Jia-Min,HUANG Tian-Xuan,SUN Ke-Xu. Radiation Energy Loss from Laser-Heated Shenguang-II Hohlraums[J]. Chinese Physics Letters, 2004, 21(12): 2469-2471 |
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| Authors: | CHANG Tie-Qiang WANG Guang-Yu DUAN Qing-Sheng PEI Wen-Bing GU Pei-Jun ZHANG Xing-Hong DING Yong-Kun ZHENG Zhi-Jian YANG Jia-Min HUANG Tian-Xuan SUN Ke-Xu |
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| Affiliation: | Department of Engineering Physics, Tsinghua University, Beijing 100084Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | Radial propagation of electrostatic fluctuations in the edge plasma of Sino-United Spherical Tokamak (SUNIST) has been measured using Langmuir probes. The propagation characteristics of the floating potential fluctuations are analysed by the two-point correlation technique. The results show radially outward propagation of the turbulent fluctuations at all measured radial positions. The power-average wavenumber profile is approximately constant in plasma edge region and suddenly increases to the limiter. These results are in good agreement with the model predictions proposed by Mattor which suggests that the drift wave propagation may be a source of edge turbulence. |
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| Keywords: | 52.40.Hf 52.25.Gj 52.55.Fa |
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