On the pressure dependence of the positive column cross section in high-pressure glow discharges

P. Mezei, T. Cserfalvi, M. Jánossy

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The cross section and the current density at the two ends of a positive column, measured as functions of pressure, were found to be different in glow discharges operated between copper electrodes in air, nitrogen and helium in the pressure range of 100-760 Torr and at an electrode distance of 7 mm. Taking into consideration the occurrence of the dissociative recombination of positive molecular ions, the observed difference is explained by the different pressure dependences and magnitudes of the cathode and anode falls, which determine the current densities at these places.

Original languageEnglish
Pages (from-to)1914-1918
Number of pages5
JournalJournal of Physics D: Applied Physics
Volume34
Issue number12
DOIs
Publication statusPublished - Jun 21 2001

Fingerprint

Glow discharges
glow discharges
pressure dependence
current density
electrodes
cross sections
Current density
molecular ions
positive ions
Helium
Electrodes
anodes
cathodes
helium
occurrences
nitrogen
copper
Copper
air
Anodes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

On the pressure dependence of the positive column cross section in high-pressure glow discharges. / Mezei, P.; Cserfalvi, T.; Jánossy, M.

In: Journal of Physics D: Applied Physics, Vol. 34, No. 12, 21.06.2001, p. 1914-1918.

Research output: Contribution to journalArticle

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