Investigation of electron cyclotron current drive efficiency on the J-TEXT tokamak

作     者：Jiangang FANG Wei YAN Zhongyong CHEN Xiaobo ZHANG Xixuan CHEN Junli ZHANG Feiyue MAO You LI Lingke MOU Yu ZHONG Feng Li Weikang ZHANG Fanxi LIU Guinan ZOU Song ZHOU Da LI Li GAO Donghui XIA Zhoujun YANG Zhipeng CHEN Nengchao WANG Yonghua DING Yunfeng LIANG Yuan PAN the J-TEXT Team 方建港;严伟;陈忠勇;张霄波;陈曦璇;张俊利;毛飞越;李由;牟玲可;钟昱;李峰;张维康;刘凡溪;邹癸南;周松;李达;高丽;夏冬辉;杨州军;陈志鹏;王能超;丁永华;梁云峰;潘垣;the J-TEXT Team

作者机构：International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsState Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People's Republic of China Institute of Plasma PhysicsChinese Academy of SciencesHefei 230031People's Republic of China Forschungszentrum Jülich GmbHInstitut für Energie-und Klimaforschung-PlasmaphysikD-52425 JülichGermany 

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

年 卷 期：2022年第24卷第12期

页      面：183-189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 National Key R&D Program ofChina(No.2018YFE0309100) National Natural Science Foundation of China(Nos.11775089,11905077,51821005) 

主　　题：electron cyclotron current drive current drive efficiency residual toroidal electric field 

摘      要：Electron cyclotron current drive(ECCD) efficiency research is of great importance for the neoclassical tearing mode(NTM) *** ECCD efficiency is beneficial for the NTM stabilization and the ECCD power threshold *** efficiency has been investigated on the J-TEXT *** electron cyclotron wave(ECW) power scan was performed to obtain the current drive *** current drive efficiency is derived to be approximately η_(0)=(0.06-0.16)×10^(19)A m^(-2)W^(-1)on the J-TEXT *** effect of the residual toroidal electric field has been included in the determination of the current drive efficiency,which will enhance the ECCD *** the plasma current of I_(p)=100 kA and electron density of n_(e)=1.5×10^(19)m^(-3),the ratio of Spitzer conductivity between omhic(OH)and ECCD phases is considered and the experimental data have been *** correction results show that the current drive efficiency η_(1)caused by the fast electron hot conductivity decreases by approximately 79%.It can be estimated that the driven current is approximately 24 kA at 300 kW ECW power.