Abstract
The relationship between current ratios and electron diffusion coefficients for the Townsend-Huxley experiment is reanalysed with the assumption that diffusion can be represented by two coefficients DT and DL for diffusion transverse and parallel respectively to the applied electric field. When the new formula is used to interpret previous experimental data obtained with a diffusion tube of length 2 cm, the derived values of DT/fl become independent of pressure (fl being the electron mobility). For longer diffusion tubes (~ 6 cm), current ratios are insensitive to DL and the results differ insignificantly from those obtained using the formula previously derived on the assumption that diffusion is isotropic.
Subject
General Physics and Astronomy
Cited by
19 articles.
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1. Drift and Diffusion of Electrons—I;Electrical and Computer Engineering;2005-11-10
2. Drift and Diffusion of Electrons—I;Electrical and Computer Engineering;2005-11-10
3. DT/µ andDL/µ for electrons in NO;Journal of Physics D: Applied Physics;1999-10-28
4. Transport Parameters for Electrons in Carbon Monoxide;Japanese Journal of Applied Physics;1997-07-30
5. Transport parameters of electron swarms in nitrogen at moderate and elevated E/N;Journal of Physics D: Applied Physics;1996-03-14