R. Moszynski et al., THE INTERACTION POTENTIAL AND TRANSPORT-PROPERTIES OF NA+ IONS IN HE GAS, Journal of physics. B, Atomic molecular and optical physics, 27(20), 1994, pp. 4933-4943
Symmetry-adapted perturbation theory is used to calculate the interact
ion potential between Na+ ions and He atoms with high accuracy over a
wide range of ion-atom separations. This potential is used to compute
the transport coefficients of Na+ ions in He gas. A comparison of the
calculated results with the most recent transport data validates the c
laimed accuracy of the potential.