SAMOP 2023 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 12: Poster I

A 12.40: Poster

Dienstag, 7. März 2023, 16:30–19:00, Empore Lichthof

Experimental quantification of Interatomic Coulombic Decay in rare gas clusters after inner-shell ionization — Catmarna Küstner-Wetekam, Lutz Marder, Dana Bloß, Nils Kiefer, •Isabel Ludwig, Arno Ehresmann, and Andreas Hans — Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany

Non-local decay mechanisms like Interatomic Coulombic Decay (ICD) are of great interest to understand radiation damage in biologically relevant samples. Weakly bound rare gas clusters can be used as a prototype system to study these processes in a less complex sample. In order to measure comparatively weak processes such as ICD after inner-shell ionization, it is neccessary to use multicoincidence spectroscopy, particularly electron-electron and electron-electron-photon coincidences. Here, we present a method to quantify the branching ratio of the core-level ICD to competing local Auger decays in pure argon and krypton clusters.