Runaway electrons suppression by the resonant magnetic perturbations during disruptions on J-TEXT

POSTER

Abstract

The runaway electrons (REs) generated during disruptions pose a serious problem for the safe operation of tokamaks. One optional method for REs suppression is external applied resonant magnetic perturbations (RMP). The combined effect of different modes of RMP on the REs suppression has been investigated on the J-TEXT tokamak. It was found that m/n=3/1 mode RMP with an appropriate amplitude was beneficial for the REs suppression. The runaway current can be significantly suppressed by 2/1 mode RMP with high strength. With the combination of 2/1 mode and 3/1 mode RMP, the performance of REs mitigation was different. By applying a high strength of 2/1 RMP combined with 3/1 mode RMP, remarkable enhancement of runaways was found compared to the case of 2/1 mode RMP only. This findings implied that the 3/1 component of RMP might play an important role in the REs suppression during disruption.

Presenters

  • Zhifang Lin

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science & Technology, Huazhong University of Science and Technology

Authors

  • Zhifang Lin

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science & Technology, Huazhong University of Science and Technology

  • Zhongyong Chen

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science & Technology, Huazhong University of Science and Technology, Huazhong University of Science and Technology, Huazhong University of Science and Technology

  • Rui hai Tong

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science & Technology, Huazhong University of Science and Technology

  • Yunong Wei

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science & Technology, Huazhong University of Science and Technology

  • Wei Yan

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and, Huazhong University of Science and Technology

  • Li Da

    International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and