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The effect of magnetic shear on the crossfield current-driven ion-acoustic instability

Published online by Cambridge University Press:  13 March 2009

R. Bharuthram  and
M. A. Hellberg
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
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Abstract

The behaviour of the crossfield current-driven ion-acoustic instability in the presence of a sheared magnetic field and a density gradient is investigated theoretically in the limit in which growth due to inverse Landau damping is small. The shear damping rate is found and the critical shear length shown to vary as (mi/me)⅓ and as ((VD–CS)/CS)–⅔.

Type
Research Article
Information
Journal of Plasma Physics , Volume 28 , Issue 2 , October 1982 , pp. 255 - 266
Copyright
Copyright © Cambridge University Press 1982

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