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Title: Evolution of electron cyclotron wave polarization in hot plasmas

Abstract

The evolution of the wave polarization during the propagation of electron cyclotron waves in hot plasmas is investigated. The coupled mode equations are solved in slab geometry, including the relativistic corrections to the dielectric tensor. This formalism is applied to purely ordinary or extraordinary modes, propagating obliquely with respect to the magnetic field in tokamak plasmas, in order to determine the rate of change of the mode purity due to finite temperature effects. It is found that such an alteration of the mode purity can be one to three orders of magnitude larger than in a cold plasma. However, the overall effect remains tolerable for most applications and typical parameters of magnetically confined plasmas.

Authors:
;  [1]
  1. Association EURATOM-CEA sur la Fusion, Departement de Recherches sur la Fusion Controlee, CEA/Cadarache, 13108 St. Paul-lez-Durance (France)
Publication Date:
OSTI Identifier:
21210486
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 485; Journal Issue: 1; Conference: 13. topical conference on radio frequency power in plasmas, Annapolis, MD (United States), 12-14 Apr 1999; Other Information: DOI: 10.1063/1.59752; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COLD PLASMA; CORRECTIONS; CYCLOTRON RESONANCE; DIELECTRIC TENSOR; ECR HEATING; ELECTRON TEMPERATURE; ELECTRONS; HOT PLASMA; ION TEMPERATURE; MAGNETIC CONFINEMENT; MAGNETIC FIELDS; POLARIZATION; RELATIVISTIC RANGE; RF SYSTEMS; TEMPERATURE DEPENDENCE; TOKAMAK DEVICES; WAVE PROPAGATION

Citation Formats

Dumont, R., and Giruzzi, G. Evolution of electron cyclotron wave polarization in hot plasmas. United States: N. p., 1999. Web. doi:10.1063/1.59752.
Dumont, R., & Giruzzi, G. Evolution of electron cyclotron wave polarization in hot plasmas. United States. doi:10.1063/1.59752.
Dumont, R., and Giruzzi, G. Mon . "Evolution of electron cyclotron wave polarization in hot plasmas". United States. doi:10.1063/1.59752.
@article{osti_21210486,
title = {Evolution of electron cyclotron wave polarization in hot plasmas},
author = {Dumont, R. and Giruzzi, G.},
abstractNote = {The evolution of the wave polarization during the propagation of electron cyclotron waves in hot plasmas is investigated. The coupled mode equations are solved in slab geometry, including the relativistic corrections to the dielectric tensor. This formalism is applied to purely ordinary or extraordinary modes, propagating obliquely with respect to the magnetic field in tokamak plasmas, in order to determine the rate of change of the mode purity due to finite temperature effects. It is found that such an alteration of the mode purity can be one to three orders of magnitude larger than in a cold plasma. However, the overall effect remains tolerable for most applications and typical parameters of magnetically confined plasmas.},
doi = {10.1063/1.59752},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 485,
place = {United States},
year = {1999},
month = {9}
}