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Abstract

This paper discusses the main mechanism of edge radiation : 1) coaxial modes propagating in the vacuum layer between the plasma and the metal wall 2) surface waves in the outer plasma gradient. The effect of the geometrical parameters of the antenna on these two forms of radiation is analyzed for both the conventional strip line antenna and the slot antenna. First, the conventional antenna model and basic equation is discussed: Fourier analysis for a semi-infinite space and singularities of the power spectra, and: Fourier analysis of a toroidally and poloidally periodic space. This is followed by discussions: of the coaxial modes in the presence of plasma; of surface waves; and of excitation of coaxial modes through an opening in the wall (slot antenna). A discussion on: "How to prevent plasma edge radiation?" concludes the paper.

Additional information

Authors: MESSIAEN A M, LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM);KOCH R, LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM);BHATNAGAR V P, LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM);VANDENPLAS P E, LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM);WEYNANTS R R LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM), LABORATOIRE DE PHYSIQUE DES PLASMAS, ECOLE ROYALE MILITAIRE, BRUXELLES (BELGIUM)
Bibliographic Reference: 4TH INTERNATIONAL SYMPOSIUM ON HEATING IN TOROIDAL PLASMAS, ROMA (ITALY), MARCH 21-28, 1984 VOL. I, PP. 211- 241 1478 P., VOL. I AND VOL. II, 1984 WRITE TO MONOTYPIA FRANCHI, ST. LUCIA + VIALE UMBRIA NO. 28, 06012 CITTA DI CASTELLO, PERUGIA (ITALY), USD 6
Record Number: 1989124025300 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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