Recent results from triple-coincidence measurements of Auger electrons,
scattered projectiles, and atomic recoil ions are reported. The studies employed supersonically cooled targets, position imaging detectors, and time-of-flight coincidence techniques; making it possible to simultaneously perform Auger-electron and cold-target recoil-ion momentum spectroscopic (COLTRIMS) measurements. The measurements provide subpartial Auger-electron spectra corresponding to specific final projectile and recoil ion charge states, as well as information on the Q values of the collisions. The measurements provide new insights into the collision dynamics as well as the relaxation pathways of multiply excited states populated during the collisions.