alexa Parametric Instability of a Lower Hybrid Wave in Two Io
ISSN: 2320-2459

Research & Reviews: Journal of Pure and Applied Physics
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Research Article

Parametric Instability of a Lower Hybrid Wave in Two Ion Species Plasma

Nafis Ahmad1*, Moiz Ahmad2

1Department of Physics, College of Science, UAE University, PO Box 15551, Al-Ain, United Arab Emirates

2Department of Physics, Integral University, Lucknow 226 026, India

*Corresponding Author:
Nafis A
Department of Physics
College of Science, UAE University
PO Box 15551, Al-Ain, United Arab Emirates
Tel: +971 3 767 333
E-mail: [email protected]

Received Date: 23/03/2016; Accepted Date: 06/05/2016; Published Date: 08/05/2016

 

Abstract

Three wave parametric instability of a large amplitude lower hybrid wave in two-ion species plasma is studied analytically. The pump decays into a low frequency mode or quasi mode in the ion cyclotron range of frequency and a lower hybrid wave sideband. The dominant channel of decay is the one for which the low frequency mode is an ion cyclotron wave with frequency close to the ion cyclotron frequency of either ion species. For typical D-T plasma of a tokamak, the growth rate for ω close to deuterium cyclotron frequency, increases with the wave number of the ion cyclotron wave and decreases as the ratio of deuterium to tritium density increases.

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