Publication detail

Determination of oxygen atom wall recombination probability in Ar – O2 afterglow

MAZÁNKOVÁ, V. TRUNEC, D. KRČMA, F.

Original Title

Determination of oxygen atom wall recombination probability in Ar – O2 afterglow

English Title

Determination of oxygen atom wall recombination probability in Ar – O2 afterglow

Type

conference paper

Language

en

Original Abstract

The reaction kinetics in argon – oxygen flowing afterglow (post-discharge) was studied using NO titration and optical emission spectroscopy. The O(3P) atom concentration was determined by NO titration at different places along the flow tube. The optical emission spectra were also measured along the flow tube. A zero-dimensional kinetic model for the reactions in the afterglow was developed. This model allows to calculate the time dependencies of particle concentrations. The wall recombination probability for O(3P) atoms γO = (1.60 ± 0.01) ×10-3 and wall deactivation probability for O2(b 1Σg+) molecules γO2(b) = (1.56 ± 0.03) ×10-3 were determined from the fit of model results to experimental data.

English abstract

The reaction kinetics in argon – oxygen flowing afterglow (post-discharge) was studied using NO titration and optical emission spectroscopy. The O(3P) atom concentration was determined by NO titration at different places along the flow tube. The optical emission spectra were also measured along the flow tube. A zero-dimensional kinetic model for the reactions in the afterglow was developed. This model allows to calculate the time dependencies of particle concentrations. The wall recombination probability for O(3P) atoms γO = (1.60 ± 0.01) ×10-3 and wall deactivation probability for O2(b 1Σg+) molecules γO2(b) = (1.56 ± 0.03) ×10-3 were determined from the fit of model results to experimental data.

Keywords

optical emmision spectroscopy, NO titration, kinetic model

Released

01.02.2016

Publisher

Innsbruck university press

Location

Innsbruck

ISBN

978-3-903122-04-8

Book

XX th Symposium on Atomic, Cluster and Surface Physics 2016, Contributions

Edition

1st

Edition number

1

Pages from

203

Pages to

206

Pages count

4

BibTex


@inproceedings{BUT129734,
  author="Věra {Mazánková} and David {Trunec} and František {Krčma}",
  title="Determination of oxygen atom wall recombination probability in Ar – O2 afterglow",
  annote="The reaction kinetics in argon – oxygen flowing afterglow (post-discharge) was studied using NO titration and optical emission spectroscopy. The O(3P) atom concentration was determined by NO titration at different places along the flow tube. The optical emission spectra were also measured along the flow tube. A zero-dimensional kinetic model for the reactions in the afterglow was developed. This model allows to calculate the time dependencies of particle concentrations. The wall recombination probability for O(3P) atoms γO = (1.60 ± 0.01) ×10-3 and wall deactivation probability for O2(b 1Σg+) molecules γO2(b) = (1.56 ± 0.03) ×10-3 were determined from the fit of model results to experimental data.",
  address="Innsbruck university press",
  booktitle="XX th Symposium on Atomic, Cluster and Surface Physics 2016, Contributions",
  chapter="129734",
  edition="1st",
  howpublished="print",
  institution="Innsbruck university press",
  year="2016",
  month="february",
  pages="203--206",
  publisher="Innsbruck university press",
  type="conference paper"
}