Comment on 'Magnetic field effects on gas discharge plasmas' [Phys. Plasmas 13, 063511 (2006)]
- University College, Oxford OX1 4BH (United Kingdom)
N. Sternberg, V. Godyak, and D. Hoffman [Phys. Plasmas 13, 063511 (2006)] have produced a detailed paper on a cylindrical plasma column in an axial magnetic field. The authors found that the radial component of the ion velocity, on leaving the plasma region, is the ion acoustic velocity. This is, of course, the Bohm velocity, but the authors did not comment on this fact. The Bohm criterion does appear to be of general validity, however, and perhaps a greater emphasis should have been given to this result.
- OSTI ID:
- 20974855
- Journal Information:
- Physics of Plasmas, Vol. 14, Issue 2; Other Information: DOI: 10.1063/1.2435973; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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