Non-Maxwellian electron energy distribution function in He, He/Ar, He/Xe/H2 and He/Xe/D2 low temperature afterglow plasma

R. Plasil, I. Korolov, T. Kotrik, P. Dohnal, G. Bano, Z. Donko, J. Glosik

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16 Citations (Scopus)

Abstract

Experimental studies of the electron energy distribution function " EEDF " under well defined conditions in flowing afterglow plasma, using a Langmuir probe are reported. The EEDF is measured in He2 + and Ar+ dominated plasmas and in XeH+ and XeD+ dominated recombining plasmas. He is used as a buffer gas at medium pressures in all experiments (1600 Pa, 250 K). The deviation of the measured EEDF from Maxwellian distribution is shown to depend on plasma composition and on the processes governing the plasma decay. The influence of energetic electrons produced during the plasma decay on the body and tail of the EEDF is observed. The mechanism of energy balance in afterglow plasma is discussed.

Original languageEnglish
Pages (from-to)391-398
Number of pages8
JournalEuropean Physical Journal D
Volume54
Issue number2
DOIs
Publication statusPublished - Aug 1 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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