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The propagation of a plasma wave with trapped particles in a weakly inhomogeneous plasma

Published online by Cambridge University Press:  13 March 2009

V. L. Krasovsky
Affiliation:
Space Research Institute, Russian Academy of Sciences, Profsoyuznaya Street 84/32, Moscow 117810, Russia

Abstract

The propagation of a Langmuir wave with a small group of trapped particles in a weakly non-uniform plasma along a density gradient is considered. The dynamics of trapped electrons accelerated by the wave is investigated in the adiabatic approximation, including the relativistic case. The set of equations describing the self-consistent spatial evolution of the wave—trapped-particles system is obtained and analysed. It is shown that the possibility exists of wave transmission through a classically forbidden barrier as a consequence of the reversibility of the wave—particle interaction. The conditions of validity of the theory developed are also discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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References

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