Reformulation of lower-hybrid wave propagation and absorption

Journal Article · Sun Jul 01 04:00:00 EDT 1984 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864824· OSTI ID:6731552

Grossmann, W; Weitzner, H

A full wave solution of the propagation and resonant absorption of lower-hybrid waves in an inhomogeneous plasma using the cold plasma model is carried out and compared with results obtained in an infinite homogeneous plasma medium. It is found that the density gradient coupled to finite poloidal model number allows the lower-hybrid wave to reach the hybrid layer for the case of purely perpendicular propagation. Such a wave is evanescent in the infinite homogeneous plasma. The analysis also shows that, for the cold plasma model, roughly equal amounts of energy are absorbed by the ions and electrons in the resonant layer. The analysis may have some bearing on the experimental efforts to propagate lower-hybrid waves into the interior of tokamak plasmas.

• Research Organization: Courant Institute of Mathematical Sciences, New York University, New York, New York 10012
• DOE Contract Number: AC02-76ER03077
• OSTI ID: 6731552
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 27:7; 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
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ABSORPTION
COLD PLASMA
CORRELATIONS
ELECTROMAGNETIC RADIATION
HEATING
HIGH-FREQUENCY HEATING
INHOMOGENEOUS PLASMA
LOWER HYBRID HEATING
PLASMA
PLASMA HEATING
PLASMA SIMULATION
RADIATIONS
RESONANCE ABSORPTION
SIMULATION
WAVE PROPAGATION