Abstract
Mobilities for K+ ions in Ar, Kr, and Xe gases have been measured at 300 °K in a drift tube spectrometer over a wide range of E/N (the ratio of the electric field intensity to the neutral gas number density). New data for K+–Kr and K+–Xe are presented here. The Viehland–Mason kinetic theory of ionic mobility, being valid for arbitrary E/N, is employed to calculate theoretical mobilities by utilizing electron gas–Drude model potentials of Gordon and Waldman for K+–Ar, K+–Kr, and K+–Xe. The results of these calculations are compared with the experimental data. Using the Gordon and Waldman potentials as a starting point, an iterative scheme, employing the experimental data directly, is used to develop ’’experimental’’ potentials. The new potentials are tabulated and compared to the Gordon and Waldman potentials.
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