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The crossfield current-driven ion-acoustic instability in a collisional plasma

Published online by Cambridge University Press:  13 March 2009

R. Bharuthram ,
M. A. Hellberg  and
R. D. Lee
R. Bharuthram
Affiliation:
Plasma Physics Research Institute, University of Natal, Durban, 4001, South Africa
M. A. Hellberg
Affiliation:
Plasma Physics Research Institute, University of Natal, Durban, 4001, South Africa
R. D. Lee
Affiliation:
Plasma Physics Research Institute, University of Natal, Durban, 4001, South Africa
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Abstract

Using the Bhatnagar–Gross–Krook collision model, the effects of charge-transfer and elastic ion-neutral collisions on the crossfield beam-driven ion-acoustic instability in a double plasma device are studied. Elastic collisions cause a slowing of the beam, while charge exchange gives rise to an exponential decay in ion beam density. The resultant damping of the instability is calculated and compared with experiment.

Type
Research Article
Information
Journal of Plasma Physics , Volume 28 , Issue 3 , December 1982 , pp. 385 - 394
Copyright
Copyright © Cambridge University Press 1982

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References

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