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Runaway electron generation during disruptions in the J-TEXT tokamak

机译:J-TEXT托卡马克破裂期间电子失控产生

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摘要

A systematic study of disruption-generated runaway electrons has been performed in the J-TEXT tokamak. During the intended disruption by the argon injection in J-TEXT, the runaway electron plateau is more easily obtained with a higher loop voltage and shorter onset time of high loop voltage. Magnetic fluctuations are observed at the beginning of the current quench during the disruptions. The generated runaway electron (RE) current is larger at a lower level of magnetic fluctuation. Experimental evidence supporting that the theory of hot tail RE generation might be playing a role has also been found. With higher temperature before the disruption, more REs are generated via the hot tail mechanism during the thermal quench. By increasing the hot tail RE generation by increasing the temperature, an obvious RE plateau is observed even with a low toroidal magnetic field (1.2 T).
机译:在J-TEXT托卡马克中已对破坏产生的失控电子进行了系统的研究。在通过J-TEXT中的氩气注入而造成的预期破坏期间,更高的环路电压和较短的高环路电压开始时间更容易获得失控的电子平稳期。在中断期间,在电流猝灭开始时会观察到电磁波动。在较低的磁波动水平下,产生的失控电子(RE)电流较大。还发现了支持热尾稀土产生理论可能起作用的实验证据。在破坏之前,随着温度升高,在热淬火过程中,通过热尾部机理会生成更多的稀土元素。通过增加温度来增加热尾部RE的产生,即使在低环形磁场(1.2 T)的情况下,也可以观察到明显的RE平稳期。

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  • 来源
    《Nuclear fusion》 |2017年第4期|046001.1-046001.9|共9页
  • 作者单位

    Institute of Plasma Physics, Chinese Academy of Sciences, 230031 Hefei, People's Republic of China;

    State Key Laboratory of Advanced Electromagnetic Engineering and Technology, College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 430074 Wuhan, People's Republic of China;

    Southwestern Institute of Physics, 610041 Chengdu, People's Republic of China;

    Institut fur Energie- und Klimaforschung, Plasmaphysik, Forschungszentrum Jiilich GmbH, Jülich 52425, Germany;

    Institut fur Energie- und Klimaforschung, Plasmaphysik, Forschungszentrum Jiilich GmbH, Jülich 52425, Germany;

    Southwestern Institute of Physics, 610041 Chengdu, People's Republic of China;

    Institute of Plasma Physics, Chinese Academy of Sciences, 230031 Hefei, People's Republic of China;

    State Key Laboratory of Advanced Electromagnetic Engineering and Technology, College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 430074 Wuhan, People's Republic of China;

    Institute of Plasma Physics, Chinese Academy of Sciences, 230031 Hefei, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    runaway electron; disruption; magnetic fluctuations; hot tail re generation;

    机译:电子失控破坏磁波动;热尾再生成;

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