
%0 Journal Article
%A Elford, MT 
%T The Ratio <I>D</I><sub>L</sub>/<I<&#956;</I> for Electrons in Helium at 293 K
%J Australian Journal of Physics
%D 1974/04/01
%V 27
%N 2
%P 235-240
%K 
%R https://doi.org/10.1071/PH740235
%U https://www.publish.csiro.au/paper/PH740235 
%X The Bradbury&#8211Nielsen method has been used to measure the ratio of the longitudinal diffusion coefficient DL to the electron mobility &#956; in helium at 293 K over the E/N range 0024&#8211;0.607 Td. The absolute error is estimated to be less than ± 3 %. The present results agree with those of Wagner et al. (1967), to within the combined experimental errors over the common range of E/N values, and are also compatible with the values predicted by Lowke and Parker (1969) from calculations based on the momentum transfer cross section of Crompton et al. (1967). 
