Effects of the fast wave on the drift-cyclotron loss-cone mode

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863520· OSTI ID:6423380

Shaing, K

Particle orbits in the presence of the fast wave fields are calculated. It is found that the resonant interaction of ions with the wave can be neglected at ..omega../sub 0/ = 2..omega../sub c/i, provided that the wave electric field strength is less than a critical value E/sub c/( = 4k/sub parallel/T/e). The dominant effect on the dispersion relation of the drift-cyclotron loss-cone mode is thus found to be due to the nonresonant effects of the wave on electrons and ions. It is found that a fast wave with ..omega../sub 0/ = 2..omega../sub c/i destabilizes the mode. For ..omega../sub 0/<2..omega../sub c/i, fast waves can stabilize the mode for certain values of the plasma ..beta.., which is calculated numerically.

• Research Organization: Fusion Engineering Program, Department of Nuclear Engineering, University of Wisconsin, Madison, Wisconsin 53706
• OSTI ID: 6423380
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 24:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
CYCLOTRON INSTABILITY
DISPERSION RELATIONS
DRIFT INSTABILITY
ELECTRIC FIELDS
INSTABILITY
LOSS CONE INSTABILITY
MAGNETIC MIRRORS
OPEN PLASMA DEVICES
ORBITS
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
STABILIZATION
THERMONUCLEAR DEVICES