K x-ray emission in gas- and solid targets in close heavy ion-atom collisions

Impact parameter dependentK x-ray emission from both collision partners in²⁰⁸Pb⁺²⁶ →¹²⁰Sn and Xe collisions at 3,6 MeV/N projectile has been investigated. In solid target collisions the Sn-K emission yield shows impact parameter dependent structures. These structures are interpreted in terms of post-collisional capture processes. TheK x-ray emission from the heavier collision partner related to the 1s σ vacancy production, is found to be dependent on the primary projectile outer-shell configuration.