Stability of the toroidicity-induced Alfven eigenmode in axisymmetric toroidal equilibria

摘要

The stability of toroidicity-induced Alfven eigenmodes (TAE) is investigated in general tokamak equilibria with finite aspect ratio and finite plasma beta. The finite orbit width of the hot particles and the collisional damping of the trapped electrons are included. For the trapped hot particles, the finite orbit width is found to be stabilizing. For the circulating hot particles, the finite orbit width effect is stabilizing for larger values of v(sub h)/v(sub A) (> 1) and destabilizing for smaller values of v(sub h)/v(sub A) (