Hannover 2020 – scientific programme
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A: Fachverband Atomphysik
A 9: Poster Session - Atomic Physics I
A 9.10: Poster
Monday, March 9, 2020, 16:00–18:00, Empore Lichthof
Competition of photon and electron emission in interatomic decay of heterogeneous noble gas clusters — •Lutz Marder1, André Knie1, Christian Ozga1, Christina Zindel1, Clemens Richter2, Uwe Hergenhahn2,3, Arno Ehresmann1, and Andreas Hans1 — 1Institute of Physics, University of Kassel, Kassel, Germany — 2Leibniz Institute of Surface Modification, Leipzig, Germany — 3Max Planck Institute for Plasma Physics, Greifswald, Germany
Noble gas clusters represent prototype systems for the investigation of fundamental atomic and molecular processes. Van-der-Waals bonds enable new relaxation pathways not available in isolated systems. In recent years many of these have been studied, often using coincidence measurement techniques.
Here, 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 excitation with synchrotron radiation. The results show that the addition of krypton to pure neon clusters strongly alters the emission by the opening of a faster ionizing decay channel compared to the radiative decay.