The Open UniversitySkip to content
 

A comprehensive treatment of the positive column of discharges in electronegative gases

Franklin, R. N. (2001). A comprehensive treatment of the positive column of discharges in electronegative gases. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 457(2006) pp. 307–330.

URL: http://www.journals.royalsoc.ac.uk/content/jyu99v3...
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1098/rspa.2000.0668
Google Scholar: Look up in Google Scholar

Abstract

Fluid equations are used to describe the plasma which is the positive column of a gas discharge in electronegative gases. These equations are solved computationally over a wide range of the parameters needed to characterize the plasma when attachment, detachment, recombination, ionization and particle collisions are significant processes. Where possible, comparison is made with results obtained by the method of matched asymptotic approximations. The conditions under which discharges may exist are elucidated and it is shown that it is necessary to include ion diffusion, through the ion temperature, to get realistic distributions of the ions at higher pressures. The conditions under which such discharges are structured are obtained with the general requirement that the attachment rate must be less than the ionization rate for there to be a central ion-ion plasma core. Equally, the nearly collisionless situation is described in detail in the fluid approximation.

Item Type: Journal Article
ISSN: 1364-5021
Academic Unit/Department: Science > Physical Sciences
Item ID: 7961
Depositing User: Tracey Moore
Date Deposited: 12 Jun 2007
Last Modified: 02 Dec 2010 20:00
URI: http://oro.open.ac.uk/id/eprint/7961
Share this page:

Altmetrics

Scopus Citations

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk