Absolute electron capture cross sections of Kr+ with Ne atoms

Abstract

The absolute differential and total cross sections for single electron capture at energies between 1 and 5 keV are reported. The reduced differential cross sections scale reasonably well, showing an overall increase of two orders of magnitude and three maxima at different collision energies. We deduce, from the experimental differential cross section, that the electron capture channel "opens" at a critical projectile-target separation between 2.88 a(0) and 3.15 a(0) and that at least two different processes are involved in the present energy range. The single electron capture cross section of Kr+ ions in various media is shown. It has been found that the dependence of the single electron capture cross section with the nuclear charge of the target atoms is oscillatory. (C) 2000 Elsevier Science B.V.