Anisotropic Diffusion in Electron Swarms
Open Access
- 1 January 1975
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Physics
- Vol. 28 (5) , 533-542
- https://doi.org/10.1071/ph750533
Abstract
We show that the distribution functions derived by Parker (1963) in his analysis of the TownsendHuxley experiment can be used to calculate DL/D, the ratio of longitudinal to isotropic diffusion coefficients for electron swarms in electrostatic fields in gases. In the case of a constant collision frequency interaction our results agree with previous calculations, whilst for a constant mean free path we find DL/D = 0�58. This result is some 16% higher than previously published values but provides better agreement with experiment for electrons in helium.Keywords
This publication has 0 references indexed in Scilit: