
%0 Journal Article
%A Huxley, LGH 
%T The Properties of a Drifting and Diffusing Pulse of Electrons and Townsend's Coefficient of Ionization aT
%J Australian Journal of Physics
%D 1968/10/01
%V 21
%N 5
%P 761-764
%K 
%R https://doi.org/10.1071/PH680761
%U https://www.publish.csiro.au/paper/PH680761 
%X When diffusion is active in an ionizing stream of electrons the experimental Townsend coefficient of ionization exT is not simply the ratio Vl/W of Vi, the average rate of volume ionization per electron, to the drift speed W of the electrons, as was implied by Townsend's interpretation of exT, but is given by the formula (Huxley 1959) 
