Determination of characteristic constants for some basic processes in plasma—diffusion, Penning ionization, asymmetric charge transfer

The diffusion coefficients of ten chemical element atoms in the binary system with helium and neon are calculated on the basis of 12-6 Lennard-Jones and rigid sphere inter-atomic interaction approximations. Cross-sections and rate constants for thermal energy charge transfer and Penning collisions a...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2008-05, Vol.41 (10), p.105203-105203 (7)
Main Authors: Temelkov, K A, Vuchkov, N K, Ekov, R P, Sabotinov, N V
Format: Article
Language:English
Subjects:
Electric discharges
Exact sciences and technology
Ionization of plasmas
Other gas discharges
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma properties
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Summary:The diffusion coefficients of ten chemical element atoms in the binary system with helium and neon are calculated on the basis of 12-6 Lennard-Jones and rigid sphere inter-atomic interaction approximations. Cross-sections and rate constants for thermal energy charge transfer and Penning collisions are calculated for all Tl+ and I+ excited states possibly populated via these reactions. For the case of the charge transfer process the theoretical results are compared with the experimentally obtained ones. Since the characteristic constants considered depend on the gas temperature, the gas temperature distribution is also calculated by solving the heat conduction equation for the gas discharges studied.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/41/10/105203