Voltage-current density characteristic of noble gas mixture discharges in th cathode region

Z. Donkb, K. Rózsa, M. Janossy

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Voltage-current density (V-j) characteristics were studied in the cathode region of noble gas mixture glow discharges. Measurements were carr out in He-X (X = Ne, Ar, Kr, Xe) mixtures in plane cathode and hollow cathode arrangements. The partial pressure of the admixed gas was maximum 2% of th total pressure. It was found that at constant voltage the current density increasi by mixing Ar to He, while it decreased when Ne, Kr or Xe were added. Above t certain partial pressure value the current density was found to increase again ir the case of Ne and Kr admixtures. In He-Xe it decreased, however, in the who range investigated. These observations are explained, taking into account ionization processes and the differences in secondary electron emission coefficients.

Original languageEnglish
Pages (from-to)1322-1327
Number of pages6
JournalJournal of Physics D: Applied Physics
Issue number8
Publication statusPublished - Aug 14 1991


ASJC Scopus subject areas

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

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