Ballooning mode stability for self-consistent pressure and current profiles at the H-mode edge
Authors:
Open Access
- 1 May 1998
- journal article
- Published by IOP Publishing in Plasma Physics and Controlled Fusion
- Vol. 40 (5) , 753-756
Abstract
The edge pressure gradient (H-mode pedestal) for computed equilibria in which the current density profile is consistent with the bootstrap current may not be limited by the first-regime ballooning limit. The transition to second stability is easier for higher elongation, intermediate triangularity, larger aspect ratio, pedestal at larger radius, narrower pedestal width, higher , and lower collisionality.Keywords
This publication has 5 references indexed in Scilit:
- Stable equilibria for bootstrap-current-driven low aspect ratio tokamaksPhysics of Plasmas, 1997
- The VH-mode at JETPlasma Physics and Controlled Fusion, 1994
- Very high confinement discharges in DIII-D after boronizationPhysics of Fluids B: Plasma Physics, 1992
- Finite-aspect-ratio effects on the bootstrap current in tokamaksThe Physics of Fluids, 1988
- Ideal MHD ballooning stability in the vicinity of a separatrixNuclear Fusion, 1984