Radial Dependence of the Collisional Trapped-Particle Instability
- 21 February 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (8) , 484-488
- https://doi.org/10.1103/physrevlett.28.484
Abstract
We investigate the effects of temperature gradient and magnetic shear on the radial dependence of the collisional trapped-particle mode. The former produces a reflecting layer at the edge of the plasma, while the latter introduces fine structure in the untrapped-particle terms. It is concluded, contrary to a published result, that unstable eigenmodes are likely to occur in large Tokamaks. Untrapped-ion resonances near the rational flux surfaces provided a stabilizing effect, however.Keywords
This publication has 4 references indexed in Scilit:
- Radial Dependence of Trapped-Particle InstabilitiesPhysical Review Letters, 1971
- Trapped particles in toroidal magnetic systemsNuclear Fusion, 1971
- Trapped-Particle Effect on Drift-Wave Instability in Toroidal SystemsPhysical Review Letters, 1970
- Universal Eigenmode in a Strongly Sheared Magnetic FieldPhysical Review Letters, 1969