Electron mobility in liquid krypton as function of density, temperature, and electric field strength

The electron mobility {μ} was measured in liquid Kr at 95×{}10²⁶{≤}n{≤}172×{}10²⁶ molecules/m³, and 121{≤}T{≤}206 K. At low fields a field-independent {μ}=μ₀ was obtained at each density. The density dependence of μ₀ is compared to that predicted by the deformation potential theory of Basak and Cohen; μ₀ is maximum at (13.7±{}0.4)×{}10²⁷ molecules/m³. Scattering lengths were calculated for both liquid Kr and Xe, and their density dependence was examined using the recent model of Baird [Phys. Rev. A 32, 1235 (1985)]. At higher fields, {μ} is field dependent. The effect of density on the field dependence is examined.