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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
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.
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