Perturbation treatment of thermal motions in gaseous ion-transport theory
- 14 June 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (11), 1881-1888
- https://doi.org/10.1088/0022-3700/12/11/014
Abstract
Wannier's cold-gas ion-transport theory has been extended to finite gas temperature by the inclusion of thermal motions in a perturbation approach. The simplicity of the cold-gas collision integrals makes the use of very large basis sets feasible, and as a consequence very accurate calculations of the transport coefficients, over the range of electric fields where the perturbation theory gives convergent results, can be carried out. For light ions in a heavy gas, i.e. for non-neutral-atom mass ratios m/M<or approximately=0.25, convergent results are obtained for all values of the electric field, while for larger mass ratios the perturbation expansions diverge in the low-field range.Keywords
This publication has 6 references indexed in Scilit:
- Gaseous ion mobility and diffusion in electric fields of arbitrary strengthAnnals of Physics, 1978
- On the relation between the diffusion and mobility of gaseous ions moving in strong electric fieldsJournal of Physics B: Atomic and Molecular Physics, 1976
- Mobility and Diffusion. I. Boltzmann Equation Treatment for Charged Particles in a Neutral GasAustralian Journal of Physics, 1973
- The Mathematical Theory of Electrical Discharges in Gases. B. Velocity-Distribution of Positive Ions in a Static FieldReviews of Modern Physics, 1953
- Motion of Gaseous Ions in Strong Electric FieldsBell System Technical Journal, 1953
- The Distribution of Velocities in a Slightly Non-Uniform GasProceedings of the London Mathematical Society, 1935