Transport properties of Rb+ ions in Ne and Ar gases

Spectroscopy of M+·Rg and transport coefficients of M+in Rg (M = Rb–Fr; Rg = He–Rn)

“…There is also no data for any of the Fr 1 Á Rg species, nor for any M 1 Á Rn species. The studies for Rb 1 Á He, [12][13][14][15][16] Rb 1 Á Ne, [12][13][14][15]17 Rb 1 Á Ar, [13][14][15]17,18 Rb 1 Á Kr 13,15,[17][18][19] and Rb 1 Á Xe 15,[18][19][20] and the studies for Cs 1 Á He, 15,21,22 Cs 1 Á Ne, 15,21,23 Cs 1 Á Ar, 15,[23][24][25] Cs 1 Á Kr 15,[24][25][26] and Cs 1 Á Xe, 15,[24][25][26] will be statistically compared to values obtained from our potentials and from the KMV potentials.…”

Experimental and Monte Carlo simulation studies of transport properties of swarms drifting in Ne and Ar gases

“…The accurate determination of the transport coefficients of gaseous ions in a neutral gas with an electric field is of fundamental importance [1,2]. In this paper, we continue the experimental measurements of the transverse diffusion coefficient-to-mobility ratio, D T /K, of alkali ion-rare gas pairs [3,5] by reporting the results for a dilute swarm of Cs + ions drifting in Ne and Ar gases at values of electric field-to-neutral gas number density ratio E/N in the range 5-600 Td and at temperature 303 ± 1 K. Monte Carlo simulation (MCS) calculations [4] are reported for mobility (K) and for longitudinal and transverse diffusion coefficient-to-mobility (D L /K and D T /K) ratios to adjudicate between the accuracies of the two available interaction potentials for these ion-neutral species pairs, namely those due to Koutselos, Mason and Viehland (KMV) [6] and the modified Tang-Toennies (MTT) [7] calculations, respectively.…”