Effect of density fluctuations on lower hybrid resonance cone propagation

Journal Article · Sat Apr 01 04:00:00 EST 1978 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.862267· OSTI ID:5030810

Bellan, P M; Wong, K L

Experimental measurements show that coherent, azimuthal density fluctuations (1) focus lower hybrid resonance cones azimuthally, and (2) modulate the radial location of the resonance cones. A simple theory based on wave refraction is presented; this theory is in good agreement with the experimental observations. The theory is extended to give a physical description of wave propagation through turbulent, isotropic (perpendicular to B) noise such as has been observed in tokamaks; it is found that the turbulence causes the lower hybrid wave vectors to have an angular spread in the plane perpendicular to B.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540
• OSTI ID: 5030810
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 21:4; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
BOUNDARY CONDITIONS
CLOSED PLASMA DEVICES
DRIFT INSTABILITY
FLUCTUATIONS
HYBRID RESONANCE
INSTABILITY
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES
REFRACTION
RESONANCE
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE
VARIATIONS
WAVE PROPAGATION