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Nonlinear evolution of double layers and electron vortices in an unstable plasma diode

Published online by Cambridge University Press:  13 March 2009

Satoru Iizuka  and
Hiroshi Tanaca
Satoru Iizuka
Affiliation:
Research Institute for Energy Materials, Yokohama National University, Yokohama 240, Japan
Hiroshi Tanaca
Affiliation:
Research Institute for Energy Materials, Yokohama National University, Yokohama 240, Japan
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Abstract

Nonlinear evolution of a large-amplitude relaxation oscillation in an unstable plasma diode is investigated by a computer simulation using a particle model. The oscillation is closely related to double-layer dynamics accompanied by a negative potential dip on the low-potential tail. A vortex is formed in the electron velocity phase space during the potential evolution, which causes a topological rearrangement of the phase space in the high-potential plasma.

Type
Research Article
Information
Journal of Plasma Physics , Volume 33 , Issue 1 , February 1985 , pp. 29 - 41
Copyright
Copyright © Cambridge University Press 1985

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