Effective ionization coefficients for low current dc discharges in alcohol vapours at low pressure

Jelena Marjanović, Dragana Marić, Gordana Malović, Zoran Petrović

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3 Citations (Scopus)
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Abstract: This paper presents results for effective ionisation coefficients (α eff/ N, N—gas density) obtained from the breakdown voltage and emission profile measurements in low-pressure dc discharges in vapours of alcohols: methanol, ethanol, isopropanol, and n-butanol. Our results for α eff/ N are determined from the axial emission profiles in low-current Townsend discharge and lay in the interval of reduced electric field E/N (E—electric field, N—gas density), from 1 kTd to 8.8 kTd. We also give a comparison of our experimental results with those from the available literature. Our data cover the high E/N range of the standard operating conditions and in the region where other data are available we have a good agreement. Graphic abstract: [Figure not available: see fulltext.]

Original languageEnglish
Article number191
Pages (from-to)1-7
Number of pages7
JournalEuropean Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
Issue number6
Publication statusPublished (in print/issue) - 29 Jun 2021

Bibliographical note

Funding Information:
The authors acknowledge support from the Serbian Ministry of Education, Science and Technological Development under project numbers OI 171037 and III 41011. Z. Lj. Petrović is grateful to the SANU project 155 and to Ulster University for support.

Publisher Copyright:
© 2021, Crown.


  • steady state townsend discharges
  • alcohols
  • ionization coefficient
  • methanol
  • ethnol
  • spatil profile of emission


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