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Nonlinear variations of the reflexion coefficient for lower-hybrid heating

Published online by Cambridge University Press:  13 March 2009

V. A. Petržílka ,
R. Klíma  and
P. Pavlo
V. A. Petržílka
Affiliation:
Institute of Plasma Physics, Czechoslovak Academy of Sciences, 182 11 Praha, Czechoslovakia
R. Klíma
Affiliation:
Institute of Plasma Physics, Czechoslovak Academy of Sciences, 182 11 Praha, Czechoslovakia
P. Pavlo
Affiliation:
Institute of Plasma Physics, Czechoslovak Academy of Sciences, 182 11 Praha, Czechoslovakia
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Abstract

The effect of the ponderomotive depression of the plasma density on the power reflexion coefficient is calculated in the first space harmonic approximation. Numerical results demonstrate a considerable growth of the reflexion coefficient when increasing the RF power. Exceptionally, the reflexion coefficient can be almost invariable up to high RF power densities (≃ 10kW cm-2), if the unperturbed plasma density gradient is high (≳ 5 × 1012 cm-4). The relation of the present theory to experiments is discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 30 , Issue 2 , October 1983 , pp. 211 - 221
Copyright
Copyright © Cambridge University Press 1983

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