Kinetic equilibrium reconstruction for the NBI- and ICRH-heated H-mode plasma on EAST tokamak
Kinetic equilibrium reconstruction for the NBI- and ICRH-heated H-mode plasma on EAST tokamak
复制标题
EAST 托卡马克上 NBI 和 ICRH 加热 H 模式等离子体的动力学平衡重建
DOI：
10.1088/2058-6272/aab262
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Qing ZANG
中科院分区：
文献类型：
--
作者：
Zhen ZHENG;Nong XIANG;Jiale CHEN;Siye DING;Hongfei DU;Guoqiang LI;Yifeng WANG;Haiqing LIU;Yingying LI;Bo LYU;Qing ZANG
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.
