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Xiaobo ZHANG, Wei YAN, Zhongyong CHEN, Jiangang FANG, Junli ZHANG, You LI, Xixuan CHEN, Yunong WEI, Ruihai TONG, Zhifang LIN, Yu ZHONG, Lingke MOU, Feng LI, Weikang ZHANG, Lu WANG, Donghui XIA, Zhonghe JIANG, Zhoujun YANG, Nengchao WANG, Zhipeng CHEN, Yonghua DING, Yunfeng LIANG, Yan PAN, J-TEXT Team. Study of the fast electron behavior in electron cyclotron current driven plasma on J-TEXT[J]. Plasma Science and Technology, 2022, 24(6): 064007. DOI: 10.1088/2058-6272/ac4ee6
Citation: Xiaobo ZHANG, Wei YAN, Zhongyong CHEN, Jiangang FANG, Junli ZHANG, You LI, Xixuan CHEN, Yunong WEI, Ruihai TONG, Zhifang LIN, Yu ZHONG, Lingke MOU, Feng LI, Weikang ZHANG, Lu WANG, Donghui XIA, Zhonghe JIANG, Zhoujun YANG, Nengchao WANG, Zhipeng CHEN, Yonghua DING, Yunfeng LIANG, Yan PAN, J-TEXT Team. Study of the fast electron behavior in electron cyclotron current driven plasma on J-TEXT[J]. Plasma Science and Technology, 2022, 24(6): 064007. DOI: 10.1088/2058-6272/ac4ee6
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Study of the fast electron behavior in electron cyclotron current driven plasma on J-TEXT

    Abstract
  • In J-TEXT tokamak, fast electron bremsstrahlung diagnostic with 9 chords equipped with multi-channel analyzer enables detailed studies of the generation and transport of fast electrons. The spatial profiles and energy spectrum of the fast electrons have been measured in two ECCD cases with either on-axis or off-axis injection, and the profiles processed by Abel-inversion are consistent with the calculated power deposition locations. Moreover, it is observed that the energy of fast electrons increases rapidly after turning off the ECCD, which may be attributed to the acceleration by the recovered loop voltage at low electron density.
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