The Current-Driven, Ion-Acoustic Instability in a Collisionless Plasma

Poul Michelsen; Hans Pécseli; Jens Juul Rasmussen; R. Schrittwieser

doi:10.1088/0032-1028/21/1/005

The Current-Driven, Ion-Acoustic Instability in a Collisionless Plasma

Poul Michelsen, Hans Pécseli, Jens Juul Rasmussen, R. Schrittwieser

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Abstract

The current-driven, ion-acoustic instability was investigated by means of an experiment performed in a collisionless plasma produced in a single-ended Q-machine. Reflections at the ends of the plasma column gave rise to a standing wave. Parameters of the instability were investigated, and it was demonstrated that the fluctuations in the plasma column behave as a classical Van der Pol oscillator. Accurate measurements of the growth rate of the instability can be performed by making explicit use of the particular properties of such a system.

Original language	English
Journal	Plasma Physics and Controlled Fusion
Volume	21
Issue number	1
Pages (from-to)	61-73
ISSN	0741-3335
DOIs	https://doi.org/10.1088/0032-1028/21/1/005
Publication status	Published - 1979

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title = "The Current-Driven, Ion-Acoustic Instability in a Collisionless Plasma",

abstract = "The current-driven, ion-acoustic instability was investigated by means of an experiment performed in a collisionless plasma produced in a single-ended Q-machine. Reflections at the ends of the plasma column gave rise to a standing wave. Parameters of the instability were investigated, and it was demonstrated that the fluctuations in the plasma column behave as a classical Van der Pol oscillator. Accurate measurements of the growth rate of the instability can be performed by making explicit use of the particular properties of such a system.",

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AB - The current-driven, ion-acoustic instability was investigated by means of an experiment performed in a collisionless plasma produced in a single-ended Q-machine. Reflections at the ends of the plasma column gave rise to a standing wave. Parameters of the instability were investigated, and it was demonstrated that the fluctuations in the plasma column behave as a classical Van der Pol oscillator. Accurate measurements of the growth rate of the instability can be performed by making explicit use of the particular properties of such a system.

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The Current-Driven, Ion-Acoustic Instability in a Collisionless Plasma

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