Resistive wall mode stabilization in toroidal geometry
The possibility of stabilizing ideal magnetohydrodynamical (MHD) instabilities by resistive walls and slow plasma rotation (rotation frequencies comparable to resistive tearing growth rates) was proposed recently by Finn [Phys. Plasmas 2 , 3782 (1995)] on the basis of cylindrical theory. In the present paper we analyze toroidal effects (pressure gradients and favorable averaged curvature) [Glasser et al. , Phys. Fluids 18 , 875 (1975)] on this ‘‘resistive window.’’