Cross sections and transport of O− in H2O vapour at low pressures

Vladimir Stojanović; Zoran Raspopović; Dragana Marić; Zoran Lj. Petrović

doi:10.1140/epjd/e2015-50720-9

2022 Impact factor 1.8

Atomic, Molecular, Optical and Plasma Physics

Topical Issue: Elementary Processes with Atoms and Molecules in Isolated and Aggregated States. Guest editors: Friedrich Aumayr, Bratislav Marinkovic, Štefan Matejčík, John Tanis, Kurt H. Becker

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Eur. Phys. J. D (2015) 69: 63
https://doi.org/10.1140/epjd/e2015-50720-9

Regular Article

Cross sections and transport of O⁻ in H₂O vapour at low pressures^*

Vladimir Stojanović¹, Zoran Raspopović¹, Dragana Marić¹^a and Zoran Lj. Petrović¹^,2

¹ Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
² Serbian Academy of Sciences and Arts, Belgrade, Serbia

^a e-mail: draganam@ipb.ac.rs

Received: 30 September 2014
Received in final form: 13 January 2015
Published online: 6 March 2015

Abstract

The transport properties of O⁻ ions in water vapour drifting in DC fields were obtained by using the Monte Carlo simulation technique with the scattering cross section sets assessed on the basis of Denpoh and Nanbu’s technique and available experimental data. A swarm method is applied to determine recommended cross section set. For the first time in this work we present the transport parameters for the conditions of low to moderate reduced electric fields E/N (N is gas density) accounting for the effect of non-conservative collisions. The data are applicable in the limit of low pressures where cluster formation does not affect the transport or may be applied at higher pressures together with a model of cluster formation kinetics.

Contribution to the Topical Issue “Elementary Processes with Atoms and Molecules in Isolated and Aggregated States”, edited by Friedrich Aumayr, Bratislav Marinkovic, Stefan Matejcik, John Tanis and Kurt H. Becker.

© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015