The Contribution of K-Electron Capture for the Production of Highly Charged Ne Recoil Ions by 156 MeV Bromine Impact

The recoil ion production cross sections in 2MeV/amu Brn++Ne0→Brn′++Neq+ were measured using a projectile ion — recoil ion coincidence technique where the final charge states of both collisions partners were detected simultaneously. Multiple ionization was found to be the dominant process for the production of low charge state recoil ions whereas the production of highly charged recoil ions is accompanied by electron capture from the Nek-shell. The derived ratio of single to double Ne-k electron capture probabilities indicates deviations from a binomial statistics distribution.