15 December 2015 The Townsend coefficient of ionization in atmospheric pressure rare gas plasma
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Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98101N (2015) https://doi.org/10.1117/12.2225321
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation
Abstract
In the work the influence of the processes characteristic for atmospheric pressure heavy inert gases discharge plasma on the value of the first Townsend ionization coefficient were investigated. Krypton plasma was considered. Calculations have shown that the greatest impact on the value of the first Townsend ionization coefficient has dissociative recombination of molecular ions, followed by descending influence processes occur: stepwise ionization, the electron-electron collisions and superelastic ones. The effect of these processes begins to appear at concentrations of electrons and excited particles higher than 1012 cm-3. At times shorter than the time of molecular ions formation, when dissociative recombination is absent, should expect a significant increase of the ionization coefficient.
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G. Zvereva, G. Zvereva, } "The Townsend coefficient of ionization in atmospheric pressure rare gas plasma ", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98101N (15 December 2015); doi: 10.1117/12.2225321; https://doi.org/10.1117/12.2225321
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