Abstract Discrete Alfvén eigenmodes in steady-state operation scenarios with negative magnetic shear in the international thermonuclear experimental reactor are investigated in this paper. These magnetohydrodynamic eigenmodes are trapped by the -induced potential wells along the magnetic field line. Here with q being the safety factor, the ratio between plasma and magnetic pressures, and R the major radius, and r the minor radius. Due to negligible continuum damping via wave energy tunneling, these Alfvén eigenmodes could be readily destabilized by energetic particles.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10675037).
Cite this article:
Wang Jun(王军), Hu Shuang-Hui(胡双辉), Dai Qing-Ping(代清平), and Yao Long-Bao(姚龙宝) Discrete Alfvén eigenmodes in international thermonuclear experimental reactor operations with negative magnetic shear 2010 Chin. Phys. B 19 095202
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