Discrete Alfvén eigenmodes in the CFETR steady-state scenario  

作　　者：兰源丹 胡双辉 欧阳思杰 朱万坡 黄旋格 Yuan-Dan Lan;Shuang-Hui Hu;Si-Jie Ouyang;Wan-Po Zhu;Xuan-Ge Huang(College of Physics,Guizhou University,Guiyang 550025,China)

机构地区：[1]College of Physics,Guizhou University,Guiyang 550025,China

出　　处：《Chinese Physics B》2023年第5期544-553,共10页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China (Grant Nos. 11775058 and 12175049)。

摘　　要：The stability features of discrete Alfvén eigenmodes(αTAEs) 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 αTAEs are trapped in the electron cyclotron(EC) power deposition region and the effects of different pedestals on αTAEs are analyzed. For the negative off-axis magnetic shear scenario, the αTAEs 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 onαTAE stability are also presented.

关 键 词：Alfvén wave energetic particles plasma instability 

分 类 号：TL631.24[核科学技术—核技术及应用]