Fully Relativistic Ray-tracing and Dispersion Relations of Electron Bernstein Waves

Journal Article · Mon Sep 26 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2098257· OSTI ID:20726344

Nelson-Melby, E; Harvey, R W; Smirnov, A P ^[1]; Ram, A K ^[2]; Coda, S ^[3]

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1. CompX, P.O. Box 2672, Del Mar, CA 92014-5672 (United States)
2. Plasma Science and Fusion Center, MIT, Cambridge, MA (United States)
3. CRPP-EPFL, Lausanne (Switzerland)

Electron Bernstein waves (EBW) are important in current and future research in high density, high temperature plasmas heated by microwaves. Usually, EBWs are described using an electromagnetic, hot-plasma but non-relativistic dispersion relation. However, EBWs in magnetically confined fusion devices usually damp near electron cyclotron resonances, where relativistic effects are important in order to describe the damping correctly. Recently, a fully-relativistic, high-frequency (ion motion neglected) dispersion relation has been added to the ray-tracing code GENRAY. Comparisons of electron Bernstein wave solutions from both the fully and non-relativistic dispersion relations and ray-tracing will be presented. Significant differences are found for temperatures of order 10 keV and above which could be relevant for future experiments.

• OSTI ID: 20726344
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 787; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BERNSTEIN MODE
COMPARATIVE EVALUATIONS
DAMPING
DISPERSION RELATIONS
ELECTRIC CURRENTS
ELECTRON CYCLOTRON-RESONANCE
ELECTRONS
HIGH-FREQUENCY HEATING
HOT PLASMA
IONS
KEV RANGE
MATHEMATICAL SOLUTIONS
MICROWAVE RADIATION
PLASMA CONFINEMENT
PLASMA WAVES
RELATIVISTIC RANGE
RF SYSTEMS
TOKAMAK DEVICES