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Large-amplitude disturbances caused by ion-rich sheath motion

Published online by Cambridge University Press:  13 March 2009

A. J. Coates ,
P. D. Edgley  and
J. E. Allen
A. J. Coates
Affiliation:
Department of Engineering Science, Parks Road, Oxford 0X1 3PJ
P. D. Edgley
Affiliation:
Department of Engineering Science, Parks Road, Oxford 0X1 3PJ
J. E. Allen
Affiliation:
Department of Engineering Science, Parks Road, Oxford 0X1 3PJ
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Abstract

We present the first detailed experimental study of the plasma response to movement of a plane ion-rich sheath. The results show clearly that ion rarefaction waves are associated with sheath expansion while ion enhancement (‘compressive’) waves are formed on sheath collapse. The data are compared successfully with a nonlinear theory which includes the presence of a presheath prior to the sheath motion.

Type
Research Article
Information
Journal of Plasma Physics , Volume 30 , Issue 2 , October 1983 , pp. 275 - 290
Copyright
Copyright © Cambridge University Press 1983

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