
TY  - JOUR
A1  - Elford, MT 
T1  - The Ratio <I>D</I><sub>L</sub>/<I<&#956;</I> for Electrons in Helium at 293 K
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1974
VL  - 27
IS  - 2
SP  - 235
EP  - 240
KW  - 
UR  - https://doi.org/10.1071/PH740235 
N2  - 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). 
ER  -

