Investigation of electron cyclotron wave absorption and current drive in CFETR hybrid scenario plasmas

作     者：王瀚林 王晓洁 张超 汤允迎 刘甫坤 Hanlin WANG;Xiaojie WANG;Chao ZHANG;Yunying TANG;Fukun LIU

作者机构：Institute of Plasma PhysicsChinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of ChinaHefei 230026People’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：2023年第25卷第9期

页      面：17-25页

核心收录：

学科分类：07[理学] 08[工学] 082701[工学-核能科学与工程] 070204[理学-等离子体物理] 0827[工学-核科学与技术] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(Nos.2017YFE0300500 and 2017YFE0300503) the Comprehensive Research Facility for Fusion Technology Program of China(No.2018-000052-73-01-001228) 

主　　题：current drive ECCD efficiency CFETR 

摘      要：The investigation of electron cyclotron(EC)wave absorption and current drive has been performed for the China Fusion Engineering Test Reactor(CFETR)hybrid scenarios using the TORAY *** achieve the physics goal of the EC system in CFETR,a total of four wave frequency values and nine locations of launching antennas have been considered,and the injection poloidal and toroidal angles have been scanned *** electron cyclotron current drive(ECCD)efficiency of the 170 GHz EC system is quite low due to the wave-particle interactions being located at the low-field *** optimize the ECCD efficiency,the wave frequency is increased up to 221–250 GHz,which leads to the power being deposited at the high-field *** off-axis ECCD efficiency can be significantly enhanced by launching EC waves from the top window and injecting them towards the high-field *** optimized ECCD efficiency atρ=0.32 and atρ=0.4 is 2.9 and 2.2 times that of 170 GHz,respectively.