Suppression of the m/n=2/1 tearing mode by electron cyclotron resonance heating on J-TEXT

作     者：方建港 陈忠勇 严伟 王能超 毛飞越 罗蔷 玄子健 陈曦璇 任正康 张峰 黄梅 夏冬辉 杨州军 陈志鹏 丁永华 the J-TEXT Team Jiangang FANG;Zhongyong CHEN;Wei YAN;Nengchao WANG;Feiyue MAO;Qiang LUO;Zijian XUAN;Xixuan CHEN;Zhengkang REN;Feng ZHANG;Mei HUANG;Donghui XIA;Zhoujun YANG;Zhipeng CHEN;Yonghua DING;the J-TEXT Team

作者机构：State Key Laboratory of Advanced Electromagnetic TechnologyInternational Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsSchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China Southwestern Institute of PhysicsChengdu 610041People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2024年第26卷第8期

页      面：8-17页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：supported by the National Magnetic Confinement Fusion Energy R&D Program of China(No.2019YFE03010004) the Hubei Provincial Natural Science Foundation of China(No.2022CFA072) National Natural Science Foundation of China(No.51821005) 

主　　题：tearing mode electron cyclotron resonant heating tearing mode suppression 

摘      要：Stabilization of tearing modes and neoclassical tearing modes is of great importance for tokamak *** cyclotron waves(ECWs)have been extensively used to stabilize the tearing modes with the virtue of highly localized power *** suppression of the m/n=2/1 tearing mode(TM)by electron cyclotron resonance heating(ECRH)has been achieved successfully on the J-TEXT *** effects of ECW deposition location and power amplitude on the 2/1 TM suppression have been *** is found that the suppression is more effective when the ECW power is deposited closer to the rational *** the ECW power increases to approximately 230 k W,the 2/1 TM can be completely *** island rotation frequency is increased when the island width is *** experimental results show that the local heating inside the magnetic island and the resulting temperature perturbation increase at the O-point of the island play dominant roles in TM *** the ECW power increases,the 2/1 island is suppressed to smaller island width,and the flow shear also plays a stabilizing effect on small magnetic *** the stabilizing contribution of heating and flow shear,the 2/1 TM can be completely suppressed.