Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster III

A 26.17: Poster

Donnerstag, 17. März 2011, 16:00–18:30, P2

Electron angular correlations in the sequential two-photon double ionization of noble gasesE.V. Gryzlova1, A.N. Grum-Grzhimailo1, •S. Fritzsche2,3, and N.M. Kabachnik1,41Institute of Nuclear Physics, Moscow State University, Russia — 2Department of Physics, University of Oulu, Finland — 3GSI Helmholtzzentrum für Schwerionenforschung, Germany — 4I. Institut für Theoretische Physik, Universität Hamburg, Germany

The study of non-linear atomic processes in the XUV and x-ray regime has attracted much interest following the recent developments of intense FEL sources. Among these processes, the two-photon double ionization (TPDI) of noble gases enables one to better understand the transition from a ‘sequential’ towards the ‘simultaneous’ emission of electrons [1,2]. For the TPDI emission of atoms, general expression for the angular correlation function has been derived and analyzed for suitable geometries in the experimental set-up of possible angle-differential measurements. Numerical calculations have been performed especially for the sequential TPDI of krypton [3] and xenon and will be presented in this contribution.
S. Fritzsche et al., J. Phys. B 41 (2008) 165601; B 42 (2009) 145602.
M. Kurka et al., J. Phys. B 42 (2009) 141002(FT).
E. V. Gryzlova et al., J. Phys. B 43 (2010) 225602.

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