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SAMOP 2023 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 22: Atomic Clusters (joint session A/MO)

A 22.3: Vortrag

Donnerstag, 9. März 2023, 11:45–12:00, F107

Quenching of photon emission in heterogeneous noble gas clusters — •Lutz Marder, Catmarna Küstner-Wetekam, Nils Kiefer, Dana Bloß, André Knie, Arno Ehresmann, and Andreas Hans — Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany

Noble gas clusters represent prototype systems suited for the investigation of fundamental atomic and molecular processes. The Van-der-Waals bonds enable new relaxation pathways not available in isolated systems. Many of these have been studied during the recent years, often using coincidence measurement techniques.

We present our state-of-the-art experiment where both electrons and photons were detected in coincidence, which allows for investigation of multi-particle decay pathways after ionization with synchrotron radiation. The results show that the addition of a heavier noble gas to clusters of a lighter noble gas strongly alters the emission by the opening of faster ionizing decay channels compared to the radiative decay.

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