Ionic fragmentation and post-collision interaction in the Auger decay of carbon-K ionised CO

Abstract

The authors report relative abundances for the formation of CO+, O+, CO2+, C+, O2+ and C2+ ions from CO following dipole transitions in the carbon K shell (287-310 eV). A complete collection is made of all dissociation fragments and their kinetic energy is estimated. They find evidence for post-collision interaction, which transfers some oscillator strength from the double- (and triple-) ionisation channels to that of single ionisation. The corresponding excited CO+ states are found to be completely dissociative.