Influence of radial electric field on Alfven-type instabilities
- Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08543 (United States)
The influence of the large-scale radial electric field, [ital E][sup (0)][sub [ital r]] on the frequency of shear-Alfven-type instability is analyzed. A frozen-in-flux constraint and the moderate-[beta] ion gyrokinetic equation are used in the derivation. The present analysis indicates that the frequency predicted by a theory without [ital E][sup (0)][sub [ital r]] effect should be Doppler shifted by [bold k][center dot][bold V][sub E] for comparison to the experimentally observed frequency. A specific example of the practical relevance of the result is given regarding possible identification of the edge-localized-mode-associated magnetic activity recently observed in PBX-M [[ital Plasma] [ital Physics] [ital and] [ital Controlled] [ital Nuclear] [ital Fusion] [ital Research] (International Atomic Energy Agency, Vienna, 1989), Vol. 1, p. 97] tokamak experiment.
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 7206557
- Journal Information:
- Physics of Plasmas; (United States), Vol. 1:6; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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TOKAMAK DEVICES
ALFVEN WAVES
EDGE LOCALIZED MODES
BALLOONING INSTABILITY
ELECTRIC FIELDS
H-MODE PLASMA CONFINEMENT
KINETIC EQUATIONS
KINK INSTABILITY
CLOSED PLASMA DEVICES
CONFINEMENT
EQUATIONS
HYDROMAGNETIC WAVES
INSTABILITY
PLASMA CONFINEMENT
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700340* - Plasma Waves
Oscillations
& Instabilities- (1992-)