Single electron loss of Kr+ ions in gaseous media

Differential and total cross sections for single electron loss were measured for Kr+ ions on gaseous media in the energy range of 1.0 to 5.0 keV. The single electron loss cross sections for all the targets studied are found to be in the order of magnitude between 10-22 and 10-20 cm2, and show a rapid monotonically increasing behaviour as a function of the incident energy; no remarkable differences in the energy dependence of σ12 were found for any atom studied. The single electron loss cross sections show a weaker Zt dependence in the large Zt region than that given by the Bohr formula. A striking feature of the results is the experimental evidence of saturation in the single electron loss cross section as the nuclear charge of the target increases. (author)