TITLE

On the probe measurements in helium and oxygen plasma after-glow

AUTHOR(S)
Gutsev, S. A.
PUB. DATE
September 2013
SOURCE
Vestnik Sankt-Peterburgskogo Universiteta, Seriia 9: Filologia, ;2013, Issue 3, p141
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The paper presents experimental Langmuir probe measurements in helium and oxygen plasma afterglow. The research is carried out in three different cases: under classical Langmuir condition, under moderate pressure and under diffusion drift of charged particles to the probe. With pictures and estimate calculations it was shown that formula of orbital motion correctly describes only the collisionless case in electric field of the probe. Sources of concentration and electron temperature errors are given in detail. A correct logarithmic method of finding electron temperature is presented. A calculation of sheath of spatial charge near the probe was performed. A change of shape of voltampere characteristic from classical to diffusion condition is shown. Refs. 11. Figs. 9. Tables 3.
ACCESSION #
94334936

 

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