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|Title:||A study of K+-He and K+-Kr atomic interaction potentials based on transverse diffusion measurements||Authors:||Hogan, M.J.
|Issue Date:||1991||Citation:||Hogan, M.J.,Ong, P.P. (1991). A study of K+-He and K+-Kr atomic interaction potentials based on transverse diffusion measurements. The Journal of Chemical Physics 95 (3) : 1973-1979. ScholarBank@NUS Repository.||Abstract:||The ratio of the transverse diffusion coefficient to the mobility, D T/K, has been measured for K+ ions drifting in helium and krypton in the presence of a uniform electric field. Results at 298 K are reported at E/N values ranging from 10 to 220 Td for K+-He and 5 to 420 Td for K+-Kr. Values of DT/K for these two systems were also calculated with a Monte Carlo simulation method which used a number of proposed potentials as input. The accuracy of these potentials has been evaluated by comparing the results to the experimentally determined values. For K+-He none of the available potentials seems to be completely accurate, but for K+-krypton the potential of Koutselos, Mason, and Viehland appears to be a very good representation of the actual potential. Within the ranges studied, the estimated accuracy of the experimental measurements is ± 2.5% and the accuracies for the Monte Carlo calculations are ± 1% for K+-He and ± 0.5% for K +-Kr. © 1991 American Institute of Physics.||Source Title:||The Journal of Chemical Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/95689||ISSN:||00219606|
|Appears in Collections:||Staff Publications|
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