Transport coefficients for He⁺ ions in mixtures He/CF₄: modeling laboratory and astrophysical plasmas

Rok, strany: 2022, 78 - 89

A complete set of cross sections for helium ions in a mixture of helium and carbon tetrafluoride is recommended. The transport properties for He⁺ions in He/CF₄ mixtures required to model the discharge containing the mentioned ions were calculated by the Monte Carlo method at a temperature of T = 300 K. In this paper we give the drift velocity, characteristic energy, reduced mobility and specially rate coefficients for low and moderately reduced electric fields E /N (E-electric field, N-gas density) and accounting for non-conservative collisions. This paper is dedicated to the presentation of the set for He⁺ions scattering cross-sections in CF₄ which is estimated using available experimental data for exothermic charge transfer cross-sections producing CF₃⁺ and CF₂⁺ions and endothermic charge transfer cross-section producing CF⁺, C⁺ and F⁺ions. The aim of this paper is to determine how the addition of a percentage for He in He/CF₄ mixtures affects the separation of bulk and flux transport parameters for He⁺ions.

ISO 690:

Nikitović, Ž., Raspopović, Z. 2022. Transport coefficients for He⁺ ions in mixtures He/CF₄: modeling laboratory and astrophysical plasmas. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 52, no.3, pp. 78-89. 1335-1842. DOI: https://doi.org/10.31577/caosp.2022.52.3.78

APA:

Nikitović, Ž., Raspopović, Z. (2022). Transport coefficients for He⁺ ions in mixtures He/CF₄: modeling laboratory and astrophysical plasmas. Contributions of the Astronomical Observatory Skalnaté Pleso, 52(3), 78-89. 1335-1842. DOI: https://doi.org/10.31577/caosp.2022.52.3.78

Vydavateľ: Astronomical Institute, Slovak Academy of Sciences

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