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Calculation of Recombination and Ionization Coefficients in Argon
Author(s) -
Gleizes A.
Publication year - 1982
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19820220305
Subject(s) - atomic physics , ionization , argon , ion , electron , radiative transfer , electron temperature , electron density , atom (system on chip) , resonance (particle physics) , absorption (acoustics) , plasma , chemistry , physics , optics , nuclear physics , organic chemistry , computer science , embedded system
Various methods for calculating electron‐ion recombination and ionization coefficients for argon (α and S ) have been developed in the past. For given values of electron temperature and electron density, a large dispersion exists between the different results due to a great number of parameters. We have developed the method based on the collisional‐radiative model to calculate α and S for limited conditions (atmospheric pressure; strong resonance radiation absorption) in order to obtain realistic values applicable in real cases such as arc plasmas. Influences of resonance radiation absorption and atom‐atom collisions have been studied. The collisional‐radiative recombination coefficient has been compared with results obtained by other calculation methods: the best agreement occurs with the “bottleneck” model for high values of electron density and temperature. Finally the comparison with available experimental results shows a good agreement between our computed values and experimental values when experimental and theoretical conditions are analogous.