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Nonlinear interaction of obliquely propagating Bernstein waves with electrons in a plasma

Published online by Cambridge University Press:  13 March 2009

Masao Sugawa
Masao Sugawa
Affiliation:
Department of Physics, Faculty of Science, Ehime University, Matsuyama 790, Japan
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Abstract

We obtain analytical expression for the interaction of obliquely propagating Bernstein waves with electrons by using the monochromatic wave approximation for quasi-linear theory in a weakly turbulent plasma. A numerical analysis is also carried out. The waves show initially strong damping and irregular amplitude oscillation, and the electron velocity distribution shows a variation corresponding to one of the waves. These are results of the energy exchange between waves and electrons. Despite the use of the monochromatic wave approximation, strongly scattering electrons with a broad velocity spread about the resonant velocity by the wave is seen.

Type
Research Article
Information
Journal of Plasma Physics , Volume 40 , Issue 1 , August 1988 , pp. 87 - 96
Copyright
Copyright © Cambridge University Press 1988

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