Toroidal microinstability studies of high-temperature tokamaks
Authors:
- 1 February 1990
- journal article
- conference paper
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 2 (2) , 318-323
Abstract
Results from comprehensive kinetic microinstability calculations are presented, showing the effects of toroidicity on the ion temperature gradient mode and its relationship to the trapped‐electron mode in high‐temperature tokamak plasmas. The corresponding particle and energy fluxes have also been computed. It is found that, although drift‐type microinstabilities persist over a wide range of values of the ion temperature gradient parameter ηi≡(d ln Ti/dr)/ (d ln ni/dr), the characteristic features of the dominant mode are those of the ηi‐type instability when ηi>ηic∼1.2–1.4 and of the trapped‐electron mode when ηi<ηic.Keywords
This publication has 16 references indexed in Scilit:
- Properties of ion temperature gradient drift instabilities in H-mode plasmasPhysics of Fluids B: Plasma Physics, 1989
- Ion temperature-gradient-driven modes and anomalous ion transport in tokamaksPhysics of Fluids B: Plasma Physics, 1989
- Toroidal ion-pressure-gradient-driven drift instabilities and transport revisitedPhysics of Fluids B: Plasma Physics, 1989
- Ion temperature gradient mode in the weak density gradient limitThe Physics of Fluids, 1988
- Three-dimensional global numerical simulation of ion temperature gradient mode turbulenceThe Physics of Fluids, 1988
- Gyrokinetic particle simulation of ion temperature gradient drift instabilitiesThe Physics of Fluids, 1988
- Electrostatic drift wave eigenmodes in tokamaksNuclear Fusion, 1981
- Theory of the ubiquitous modeNuclear Fusion, 1977
- New Trapped-Electron InstabilityPhysical Review Letters, 1974
- Fluid-like instability of trapped electrons in confined plasmasPhysics Letters A, 1974