Transition to high mode induced by reduction of magnetic stress
- 1 September 1995
- journal article
- letter
- Published by AIP Publishing in Physics of Plasmas
- Vol. 2 (9) , 3243-3245
- https://doi.org/10.1063/1.871155
Abstract
The transition to the high mode (H mode) of plasma operation in tokamaks and stellarators can be triggered by reduction of the magnetic stress. The magnetic stress can be reduced directly, by stabilization of the magnetic perturbation, or by increasing the plasma density and ion temperature if all of the other parameters are fixed. This implies the existence of thresholds in density and ion temperature. The theory is applied to a class of H‐mode phenomena observed experimentally.Keywords
This publication has 21 references indexed in Scilit:
- Interaction of tearing modes with external structures in cylindrical geometry (plasma)Nuclear Fusion, 1993
- Ion collisionality and L–H transition in tokamaksPhysics of Fluids B: Plasma Physics, 1993
- Rapid change of the neutral hydrogen energy distribution at theL/Htransition in the JFT-2M tokamakPhysical Review Letters, 1992
- Regime of very high confinement in the boronized DIII-D tokamakPhysical Review Letters, 1991
- Mode locking in tokamaksNuclear Fusion, 1990
- Edge electric-field profiles of H-mode plasmas in the JFT-2M tokamakPhysical Review Letters, 1990
- Role of edge electric field and poloidal rotation in theL-HtransitionPhysical Review Letters, 1990
- Wall locking and density limit disruptionsNuclear Fusion, 1989
- Observation of Precursor Magnetic Oscillations to the-Mode Transition of the ASDEX TokamakPhysical Review Letters, 1989
- A linear model for the tearing mode of a tokamak plasma with flow and a resistive wall boundary conditionJournal of Plasma Physics, 1983