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Parametric decay instability of an upper-hybrid wave in a two-temperature plasma

Published online by Cambridge University Press:  13 March 2009

S. Konar  and
V. Rai
S. Konar
Affiliation:
School of Physics, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore 452001, India
V. Rai
Affiliation:
School of Physics, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore 452001, India
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Abstract

Parametric decay of an upper-hybrid pump into another upper-hybrid wave and a low-frequency lower-hybrid mode is considered in a two-electron temperature plasma. Expressions for the nonlinear dispersion relation and growth rate are obtained. It is found that the growth rate is quite sensitive to the hot-electron temperature and the density ratio of the hot and the cold components only when the side-band frequency is close to the second or third harmonic of the cyclotron frequency. The relevance of our investigation to Q machines and the ELMO bumpy torus is pointed out.

Type
Research Article
Information
Journal of Plasma Physics , Volume 51 , Issue 2 , April 1994 , pp. 193 - 200
Copyright
Copyright © Cambridge University Press 1994

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