
TY  - JOUR
A1  - Francey, JLA 
A1  - Jones, DA 
T1  - Anisotropic Diffusion in Electron Swarms
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1975
VL  - 28
IS  - 5
SP  - 533
EP  - 542
KW  - 
UR  - https://doi.org/10.1071/PH750533 
N2  - 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. 
ER  -

