Hannover 2013 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 19: Interaction with VUV and X-ray light II
A 19.8: Vortrag
Dienstag, 19. März 2013, 15:45–16:00, F 428
Deexcitation Cascade effects in Xe II observed by fluorescence spectroscopy after excitation by synchrotron radiation — •Christian Ozga1, Witoslaw Kielich1, Philipp Reiß1, Stefan Klumpp2, André Knie1, and Arno Ehresmann1 — 1Institut für Physik and Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, Heinrich-Plett Straße 40, D-34132 Kassel, Germany — 2Institute for Experimental Physics University of Hamburg Faculty of Mathematics, Informatics and Natural Sciences Department of Physics, Luruper Chaussee 149, D-22761 Hamburg, Germany
Due to the high number of electrons and their interdependency within the electron shells xenon atoms provide a good benchmark system to investigate quantum mechanical correlation effects. For example cascade effects in the de-excitation process can be investigated providing information of the relaxation dynamics of electron correlation effected systems. Typically these cascade effects are observed by electron or ion spectroscopy yielding data about electron systems successively losing electrons. Here we show that it is possible to observe cascade effects with constant electron numbers directly by fluorescence spectroscopy after excitation of Xe I ground state [Kr] 5s2 5p6 1S0 to a doubly excited state [Kr] 5s2 5p4(3P2)nln*l* and subsequent autoionization.