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Is the classical two-term approximation of electron kinetic theory satisfactory for swarms and plasmas?

White, Ronald Douglas; Robson, Robert; Schmidt, Brian; Morrison, Michael A


The 'two-term' approximation (representation of the electron distribution by the first two terms of an expansion in spherical harmonics in velocity space) continues to occupy a central role in the low-temperature plasma physics literature, in spite of the mass of evidence illustrating its inadequacy in the swarm (free diffusion) limit for many molecular gases. Part of the problem lies in the failure of many authors to specify quantitatively what they mean when they say that the two-term...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Journal of Physics D: Applied Physics
DOI: 10.1088/0022-3727/36/24/006


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