Plasma heating at frequencies near the lower hybrid

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.861593· OSTI ID:7350344

Chu, C; Dawson, J M; Okuda, H

The anomalous heating of plasma by large amplitude waves at frequencies close to the lower hybrid frequency has been examined by computer simulation on a two and one-half dimensional electrostatic model. The anomalous heating is due to the turbulent state induced by parametric instability. During the initial stages, the unstable waves propagate in a small cone about the direction of the pump-induced E/sub 0/ x B/sub 0/ drift. During the development of the instability, the spectrum spreads in angle and creates two-dimensional turbulence in the plane of the self-consistent electric field used in the simulation. The electrons are anomalously heated in the direction parallel to the magnetic field, while the ions are heated in the direction perpendicular to the magnetic field. In the turbulent state, the cross-field energy and momentum transport of electrons are found to be strongly enhanced. The effect of turbulence on the particle transport is discussed. (AIP)

• Research Organization: Physics Department, University of California, Los Angeles, California 90024
• OSTI ID: 7350344
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 19:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HEATING
HYBRID RESONANCE
INSTABILITY
LEPTONS
PARAMETRIC INSTABILITIES
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA SIMULATION
RESONANCE
TURBULENCE