Finite-β ion mixing mode in sheared magnetic geometry
- 1 March 1987
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids
- Vol. 30 (3) , 922-924
- https://doi.org/10.1063/1.866296
Abstract
The theory of ion temperature gradient driven instabilities (ion mixing modes) is presented for finite‐β plasmas in sheared magnetic fields. Specifically the strong instability of long wavelength modes (perpendicular wavelengths larger than the ion gyral radius) is considered and it is analytically shown that these modes cannot be stabilized at reasonable values of β, where shear Alfvén dynamics are the dominant electromagnetic effect. The strong instability, with ‖ω/k∥vTi‖>1, persists in the regime me/mi<β<1.Keywords
This publication has 18 references indexed in Scilit:
- Kinetic theory of the electromagnetic drift modes driven by pressure gradientsPhysics of Fluids, 1985
- Finite beta stabilization of the kinetic ion mixing modePhysics of Fluids, 1985
- Kinetic effects on the toroidal ion pressure gradient drift modeNuclear Fusion, 1982
- Anomalous ion conduction from toroidal drift modesPlasma Physics, 1981
- Three electrostatic temperature drift instabilitiesJournal of Plasma Physics, 1981
- The interaction of a finite electron beam with a magnetized plasmaPlasma Physics, 1981
- Fluid simulation of ion pressure gradient driven drift modesPlasma Physics, 1980
- Inward particle transport by plasma collective modesNuclear Fusion, 1979
- Ion-Mixing Mode and Model for Density Rise in Confined PlasmasPhysical Review Letters, 1978
- Plasma instabilities due to ion temperature gradientsNuclear Fusion, 1968