Auger electron-photoelectron coincidence experiments in Ar and Kr

Auger electron-photoelectron coincidence experiments have been per-formed in Ar and Kr using a multicoincidence set-up that allows to collect three coincidence angular patterns simultaneously. In these experiments the possibility to extract the basic quantities that define the photoionization of Ar 2p and those describing the interference that occurs in the photoionization of non-degenerate states in Kr have been investigated.