Overview of the J-TEXT progress on RMP and disruption physics

Yonghua DING (丁永华); Zhongyong CHEN (陈忠勇); Zhipeng CHEN (陈志鹏); Zhoujun YANG (杨州军); Nengchao WANG (王能超); Qiming HU (胡启明); Bo RAO (饶波); Jie CHEN (陈杰); Zhifeng CHENG (程芝峰); Li GAO (高丽); Zhonghe JIANG (江中和); Lu WANG (王璐); Zhijiang WANG (王之江); Xiaoqing ZHANG (张晓卿); Wei ZHENG (郑玮); Ming ZHANG (张明); Ge ZHUANG (庄革); Qingquan YU (虞清泉); Yunfeng LIANG (梁云峰); Kexun YU (于克训); Xiwei HU (胡希伟); Yuan PAN (潘垣); Kenneth William GENTLE; the J-TEXT Team

doi:10.1088/2058-6272/aadcfd

Plasma Science and Technology > 2018 > 20(12): 125101. > DOI: 10.1088/2058-6272/aadcfd

Yonghua DING (丁永华), Zhongyong CHEN (陈忠勇), Zhipeng CHEN (陈志鹏), Zhoujun YANG (杨州军), Nengchao WANG (王能超), Qiming HU (胡启明), Bo RAO (饶波), Jie CHEN (陈杰), Zhifeng CHENG (程芝峰), Li GAO (高丽), Zhonghe JIANG (江中和), Lu WANG (王璐), Zhijiang WANG (王之江), Xiaoqing ZHANG (张晓卿), Wei ZHENG (郑玮), Ming ZHANG (张明), Ge ZHUANG (庄革), Qingquan YU (虞清泉), Yunfeng LIANG (梁云峰), Kexun YU (于克训), Xiwei HU (胡希伟), Yuan PAN (潘垣), Kenneth William GENTLE, the J-TEXT Team. Overview of the J-TEXT progress on RMP and disruption physics[J]. Plasma Science and Technology, 2018, 20(12): 125101. DOI: 10.1088/2058-6272/aadcfd

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Overview of the J-TEXT progress on RMP and disruption physics

¹ 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, Wuhan 430074, People’s Republic of China
² Max-Planck-Institut für Plasmaphysik, 85748 Garching, Germany
³ Forschungszentrum Jülich GmbH, Institut für Energie-und Klimaforschung-Plasmaphysik, 52425 Jülich, Germany
⁴ Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
⁵ Institute for Fusion Studies, University of Texas at Austin, Austin, TX 78712, United States of America

Funds: This work is supported by the National Magnetic Confinement Fusion Science Program of China (Nos. 2014GB118000, 2014GB106001, 2015GB111001, 2015GB111002 and 2015GB120003) and National Natural Science Foundation of China (Nos. 11505069, 11275079 and 11405068).

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Received Date: April 23, 2018

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Abstract

Abstract

The J-TEXT tokamak has been operated for ten years since its first plasma obtained at the end of 2007. The diagnostics development and main modulation systems, i.e. resonant magnetic perturbation (RMP) systems and massive gas injection (MGI) systems, will be introduced in this paper. Supported by these efforts, J-TEXT has contributed to research on several topics, especially on RMP physics and disruption mitigation. Both experimental and theoretical research show that RMP could lock, suppress or excite the tearing modes, depending on the RMP amplitude, frequency difference between RMP and rational surface rotation, and initial stabilities. The plasma rotation, particle transport and operation region are influenced by the RMP. Utilizing the MGI valves, disruptions have been mitigated with pure He, pure Ne, and a mixture of He and Ar (9:1). A significant runaway current plateau could be generated with moderate amounts of Ar injection. The RMP has been shown to suppress the generation of runaway current during disruptions.
- resonant magnetic perturbation (RMP),
- massive gas injection (MGI),
- runaway current,
- disruption,
- J-TEXT

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References (58)

References

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