Electron Cyclotron Emission Imaging on the EAST Tokamak
Electron Cyclotron Emission Imaging on the EAST Tokamak
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DOI：
10.1088/1009-0630/13/2/08
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发表时间：
2011-04
影响因子：
1.7
通讯作者：
Ming Xu;Xiaoyuan Xu;Y. Wen;Jinxiu Ma;J. Xie;B. Gao;T. Lan;A. Liu;Yi Yu;Yinghua He;B. Wan;Liqun Hu;Xiang Gao
中科院分区：
文献类型：
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作者：
Ming Xu;Xiaoyuan Xu;Y. Wen;Jinxiu Ma;J. Xie;B. Gao;T. Lan;A. Liu;Yi Yu;Yinghua He;B. Wan;Liqun Hu;Xiang Gao
An upgraded electron cyclotron emission imaging (ECEI) system consisting of new optics lenses with necessary electronics for receiving and processing signals for two dimension (2D) ECEI diagnostics was installed on EAST. Hyperboloid lens were adopted in the new system to optimize the spatial resolutions. The mixers array of sixteen elements measured the plasma electron cyclotron emission at eight frequencies simultaneously, and the profiles of the electron temperature and its fluctuation in an area of 20 cm (vertical) × 6 cm (horizontal) could then be analyzed. Evolution of sawtooth precursor and crash in EAST was observed.
