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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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