Magneto-hydrodynamic high-n ballooning mode instability of an analytic axi-symmetric toroidal equilibrium with arbitrary aspect ratio

作者：Shi Bing Ren^*; Li Ji Quan

来源：Chinese Physics Letters, 2007, 24(2): 490-493.

An exact ballooning mode eigen-equation is derived to study stability of axi-symmetric toroidal plasma with arbitrary aspect ratio, including the tokamak, the finite aspect ratio and the spherical torus plasmas. For comparison with the widely used (s-alpha) model, an analytic exact equilibrium configuration with circular magnetic surfaces is analysed in detail. It is indicated that the (s-alpha) model needs to be improved for more realistic configurations.

• 出版日期2007-2
• 单位核工业西南物理研究院