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The application of limiter target electrostatic measurement system in J-TEXT tokamak

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【作者】阳杰；陈志鹏；刘海；王通；朱明聪；宋泽豹；王之江；庄革；丁永华； the J-TEXT Team；

【Author】 Jie YANG;Zhipeng CHEN;Hai LIU;Tong WANG;Mingcong ZHU;Zebao SONG;Zhijiang WANG;Ge ZHUANG;Yonghua DING;the J-TEXT Team;International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology;Institute of Fusion Science,School of Physical Science and Technology,Southwest Jiaotong University;Department of Engineering and Applied Physics School of Physical Sciences,University of Science and Technology of China;

【机构】 International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology； Institute of Fusion Science,School of Physical Science and Technology,Southwest Jiaotong University； Department of Engineering and Applied Physics School of Physical Sciences,University of Science and Technology of China；

【摘要】 The limiter target electrostatic measurement system including limiter grounding current sensors and Langmuir probes have been newly developed for the measurement of the limiter target area on the Joint-Texas Experimental tokamak(J-TEXT).Current sensors fixed between graphite limiters and the vacuum vessel walls are used to measure the currents between limiters and vessel wall.Simultaneously,a rectangular poloidal array containing 54 Langmuir probes is embedded in the graphite tiles of limiters for a more localized measurement.Based on this system,the effect of both the plasma’s inherent behavior,including plasma motion and the 2/1 tearing mode,and the electrode biasing on probe and sensor signals have been observed and analyzed in the experiments.更多还原

【Abstract】 The limiter target electrostatic measurement system including limiter grounding current sensors and Langmuir probes have been newly developed for the measurement of the limiter target area on the Joint-Texas Experimental tokamak(J-TEXT).Current sensors fixed between graphite limiters and the vacuum vessel walls are used to measure the currents between limiters and vessel wall.Simultaneously,a rectangular poloidal array containing 54 Langmuir probes is embedded in the graphite tiles of limiters for a more localized measurement.Based on this system,the effect of both the plasma’s inherent behavior,including plasma motion and the 2/1 tearing mode,and the electrode biasing on probe and sensor signals have been observed and analyzed in the experiments.更多还原

【关键词】 limiter target； electrostatic fluctuations； Langmuir probe； edge current； J-TEXT；
【Key words】 limiter target； electrostatic fluctuations； Langmuir probe； edge current； J-TEXT；

【基金】 supported by the National Magnetic Confinement Fusion Science Program of China(No.2015GB111001);National Natural Science Foundation of China(Nos.11305070,11505069)

【文献出处】 Plasma Science and Technology ,等离子体科学和技术(英文版) , 编辑部邮箱 ,2019年10期

【分类号】TM471;TL631.24
【被引频次】1
【下载频次】31

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