A high-beta circular tokamak equilibrium with a large pressure gradient near the plasma edge is examined with respect to magnetohydrodynamic stability including external kink, tearing, and ballooning modes with and without line-tying effects. As the edge pressure gradient increases, the linear growth rate decreases and the mode spectrum broadens with the perturbation increasingly localized near the edge.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Condensed Matter Physics