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The quest to find the plasma edge and discover a collisionally modified Bohm criterion

Published online by Cambridge University Press:  26 November 2012

R. N. FRANKLIN
R. N. FRANKLIN*
Affiliation:
Oxford Research Unit, The Open University, Boars Hill, Oxford Ox1 5HR, UK ([email protected])
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Abstract

The concepts of ‘plasma edge’ and ‘collisionally modified Bohm criterion’ have occupied attention for many years since the publication of work by Bohm that gave rise to the Bohm criterion. He acknowledged that his description of the plasma-sheath transition was incomplete. We summarize work that shows that neither concept has precision, at the same time giving a critique.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 5 , October 2013 , pp. 453 - 455
Copyright
Copyright © Cambridge University Press 2012 

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