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Author Aydemir, A. Y.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ PLASMA MACROINSTABILITIES ♦ COLLISIONAL PLASMA ♦ COLLISIONLESS PLASMA ♦ DISPERSION RELATIONS ♦ ELECTRON DRIFT ♦ ELECTRON TEMPERATURE ♦ HIGH TEMPERATURE ♦ ION DRIFT ♦ KINK INSTABILITY ♦ MAGNETOHYDRODYNAMICS ♦ OSCILLATIONS ♦ SOUND WAVES ♦ FLUID MECHANICS ♦ HYDRODYNAMICS ♦ INSTABILITY ♦ MECHANICS ♦ PLASMA ♦ PLASMA INSTABILITY ♦ Fusion Energy- Plasma Research- Instabilities
Abstract The {ital m}=1 mode in high temperature plasmas is examined using a simple four-field model of tokamak dynamics derived by Hazeltine {ital et} {ital al}. (Phys. Fluids {bold 30}, 3204 (1987)). It is shown that, despite its simplicity, the model reproduces with remarkable accuracy results obtained with more sophisticated kinetic treatments in various collisionality regimes. The effects of parallel compressibility on the {ital m}=1 mode in the collisional, semicollisional, and collisionless regimes are also discussed. Coupling to the ion sound waves is found to be weakly destabilizing in the collisional regime, and stabilizing in the semicollisional and collisionless regimes.
ISSN 08998221
Educational Use Research
Learning Resource Type Article
Publisher Date 1991-11-01
Publisher Place United States
Journal Physics of Fluids B
Volume Number 3
Issue Number 11


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