Author:
Yang Qinghu,Chen Zhipeng,Hao Zhigang,Zhao Yangming,Xu Xin,Li Shuhao,Yang Jie,Yan Wei,Jiang Zhonghe,Chen Zhongyong,Wang Nengchao,Yang Zhoujun,Pan Yuan,Ding Yonghua
Abstract
Abstract
In order to measure boundary electrostatic and magnetic fluctuations simultaneously, a set of combined Langmuir-magnetic probe (CLMP) has been designed and built on Joint-Texas Experimental Tokamak (J-TEXT). The probe consists of 8 graphite probe pins and a 3D magnetic probe, driven by a mechanical pneumatic device. By means of simulation, the shielding effect of the graphite sleeve on the magnetic fluctuation signal is explored, and the influence of the eddy current was reduced by cutting the graphite sleeve. In the experiment, it has been verified that the mutual inductance of electromagnetic signals can be ignored. And a 70~90kHz electromagnetic mode is observed around the last closed magnetic surface (LCFS). The establishment of CLMP provides data for the exploration of the coupling of electrostatic and magnetic fluctuations.
Funder
National Natural Science Foundation of China
National Key R&D Program of China
Cited by
8 articles.
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