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Electron oscillations of a collisionless plasma in a static electric field

Published online by Cambridge University Press:  13 March 2009

Christer Wahlberg
Christer Wahlberg
Affiliation:
Department of Theoretical Electrotechnics, Institute of Technology, Uppsala University, Sweden
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Abstract

The influence of a static electric field on electron oscillations of (i) a cold beam of electrons and (ii) a hot non-drifting plasma is investigated. The importance of the relative strength of the field is emphasized. In the weak field limit the oscillations are adiabatic, manifested by the existence of adiabatic invariants, preservation of eigenmodes and absence of reflexion. If the field is strong, however, interesting new features, such as mutual coupling of eigenmodes and wave reflexion, appear. Possible stability properties of a monotonic electrostatic transition (shock, double layer) are also discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 18 , Issue 3 , December 1977 , pp. 415 - 431
Copyright
Copyright © Cambridge University Press 1977

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