Abstract The stability features of discrete Alfvén eigenmodes (α TAEs) trapped by α-induced potential wells are explored in the China Fusion Engineering Test Reactor (CFETR) advanced steady-state operation environment, where α denotes a measure of the pressure gradient. For the reversed magnetic shear (RS) H-mode scenario with an enhanced internal transport barrier (ITB), the α TAEs are trapped in the electron cyclotron (EC) power deposition region and the effects of different pedestals on α TAEs are analyzed. For the negative off-axis magnetic shear scenario, the α TAEs are discussed, and the effect of different magnetic shears on the α TAEs is presented. Finally, the effects of beam energies and pitch-angle distributions on α TAE stability are also presented.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11775058 and 12175049).
Corresponding Authors:
Yuan-Dan Lan, Shuang-Hui Hu
E-mail: lyuandan@163.com;shhu@gzu.edu.cn
Cite this article:
Yuan-Dan Lan(兰源丹), Shuang-Hui Hu(胡双辉), Si-Jie Ouyang(欧阳思杰),Wan-Po Zhu(朱万坡), and Xuan-Ge Huang(黄旋格) Discrete Alfvén eigenmodes in the CFETR steady-state scenario 2023 Chin. Phys. B 32 055201
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