Kinetic equilibrium reconstruction for the NBI-and ICRH-heated H-mode plasma on EAST tokamak  

作　　者：Zhen ZHENG Nong XIANG Jiale CHEN Siye DING Hongfei DU Guoqiang LI Yifeng WANG Haiqing LIU Yingying LI Bo LYU Qing ZANG 郑振;项农;陈佳乐;丁斯晔;杜红飞;李国强;王一丰;刘海庆;李颖颖;吕波;臧庆(Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,People＇s Republic of China;University of Science and Technology of China,Hefei 230026,People＇s Republic of China;Center for Magnetic Fusion Theory,Chinese Academy of Sciences,Hefei 230031,People＇s Republic of China)

机构地区：[1]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China [2]University of Science and Technology of China, Hefei 230026, People's Republic of China [3]Center for Magnetic Fusion Theory, Chinese Academy of Sciences, Hefei 23-0031, People's Republic of China

出　　处：《Plasma Science and Technology》2018年第6期30-38,共9页等离子体科学和技术（英文版）

基　　金：supported by National Key R&D Program of China under Grant No.2017YFE0300400;National Natural Science Foundation of China under Grant Nos.11475220,11405218,11575248;the National Magnetic Confinement Fusion Science Program of China under Contracts No.2014GB106001;sponsored in part by Youth Innovation Promotion Association Chinese Academy of Sciences (Grant No.2016384)

摘　　要：The equilibrium reconstruction is important to study the tokamak plasma physical processes.To analyze the contribution of fast ions to the equilibrium,the kinetic equilibria at two time-slices in a typical H-mode discharge with different auxiliary heatings are reconstructed by using magnetic diagnostics,kinetic diagnostics and TRANSP code.It is found that the fast-ion pressure might be up to one-third of the plasma pressure and the contribution is mainly in the core plasma due to the neutral beam injection power is primarily deposited in the core region.The fast-ion current contributes mainly in the core region while contributes little to the pedestal current.A steep pressure gradient in the pedestal is observed which gives rise to a strong edge current.It is proved that the fast ion effects cannot be ignored and should be considered in the future study of EAST.The equilibrium reconstruction is important to study the tokamak plasma physical processes.To analyze the contribution of fast ions to the equilibrium,the kinetic equilibria at two time-slices in a typical H-mode discharge with different auxiliary heatings are reconstructed by using magnetic diagnostics,kinetic diagnostics and TRANSP code.It is found that the fast-ion pressure might be up to one-third of the plasma pressure and the contribution is mainly in the core plasma due to the neutral beam injection power is primarily deposited in the core region.The fast-ion current contributes mainly in the core region while contributes little to the pedestal current.A steep pressure gradient in the pedestal is observed which gives rise to a strong edge current.It is proved that the fast ion effects cannot be ignored and should be considered in the future study of EAST.

关 键 词：kinetic equilibrium reconstruction NBI ICRH pressure gradient edge current fast ions 

分 类 号：TL631.24[核科学技术—核技术及应用] TH213.3[机械工程—机械制造及自动化]