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Absorption of high-frequency electromagnetic energy in a high-temperature plasma

Abstract

In this paper an analysis of the cyclotron and Cherenkov mechanisms is given. These are two fundamental mechanisms for noncollisional absorption of electromagnetic radiation by plasma in a magnetic field. The expressions for the dielectric permeability tensor, for plasma with a nonisotropic temperature distribution in a magnetic field, are obtained by integrating the kinetic equation with Lagrangian particle co-ordinates in a form suitable to allow a comprehensive physical interpretation of the absorption mechanisms. The oscillations of a plasma column stabilized by a longitudinal field have been analyzed. For uniform plasma, the frequency spectrum has been obtained together with the direction of electromagnetic wave propagation when both the cyclotron and Cherenkov absorption mechanisms take place. The influence of nonlinear effects on the electromagnetic wave absorption and the part which cyclotron and Cherenkov absorption play in plasma heating have also been investigated.
Publication Date:
Jul 01, 1958
Product Type:
Conference
Report Number:
INIS-XU-021; P-2215-USSR
Resource Relation:
Conference: 2. United Nations international conference on the peaceful uses of atomic energy, Geneva (Switzerland), 1-13 Sep 1958; Other Information: Translated from Russian; 9 refs, 1 fig; TN:; Related Information: In: Proceedings of the second United Nations international conference on the peaceful uses of atomic energy. V. 31. Theoretical and experimental aspects of controlled nuclear fusion, 400 pages.
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABSORPTION; CYCLOTRONS; DIELECTRIC MATERIALS; ELECTROMAGNETIC RADIATION; HOT PLASMA; KINETIC EQUATIONS; LAGRANGIAN FUNCTION; MAGNETIC FIELDS; NONLINEAR PROBLEMS; OSCILLATIONS; PARTICLES; PERMEABILITY; PLASMA HEATING; SPECTRA; TEMPERATURE DISTRIBUTION
OSTI ID:
21068306
Research Organizations:
United Nations, Geneva (Switzerland)
Country of Origin:
UN
Language:
English
Other Identifying Numbers:
TRN: XU0800016082398
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 118-124
Announcement Date:
Sep 13, 2008

Citation Formats

Sagdeyev, R S, and Shafranov, V D. Absorption of high-frequency electromagnetic energy in a high-temperature plasma. UN: N. p., 1958. Web.
Sagdeyev, R S, & Shafranov, V D. Absorption of high-frequency electromagnetic energy in a high-temperature plasma. UN.
Sagdeyev, R S, and Shafranov, V D. 1958. "Absorption of high-frequency electromagnetic energy in a high-temperature plasma." UN.
@misc{etde_21068306,
title = {Absorption of high-frequency electromagnetic energy in a high-temperature plasma}
author = {Sagdeyev, R S, and Shafranov, V D}
abstractNote = {In this paper an analysis of the cyclotron and Cherenkov mechanisms is given. These are two fundamental mechanisms for noncollisional absorption of electromagnetic radiation by plasma in a magnetic field. The expressions for the dielectric permeability tensor, for plasma with a nonisotropic temperature distribution in a magnetic field, are obtained by integrating the kinetic equation with Lagrangian particle co-ordinates in a form suitable to allow a comprehensive physical interpretation of the absorption mechanisms. The oscillations of a plasma column stabilized by a longitudinal field have been analyzed. For uniform plasma, the frequency spectrum has been obtained together with the direction of electromagnetic wave propagation when both the cyclotron and Cherenkov absorption mechanisms take place. The influence of nonlinear effects on the electromagnetic wave absorption and the part which cyclotron and Cherenkov absorption play in plasma heating have also been investigated.}
place = {UN}
year = {1958}
month = {Jul}
}