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Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 24: Poster: Interaction with VUV and X-ray light

A 24.1: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.V

Relativistic calculations of atomic transition, ionization and recombination properties — •Stephan Fritzsche — GSI Helmholtzzentrum für Schwerionenforschung & Frankfurt Institute for Advanced Studies, Germany; Department of Physics, University of Oulu, Finland

The Ratip program has been developed during the past years to calculate the electronic structure and properties of atoms and ions [1]. Today, this program provides a powerful platform in order to generate and evaluate atomic data for open-shell atoms, including level energies and energy shifts, transition probabilities, Auger parameters as well as a variety of excitation, ionization and recombination amplitudes and cross sections. Although the Ratip program focus on properties with just one electron within the continuum, recent emphasis was placed also on second-order processes as well as those properties for which different types of (many-electron) amplitudes need to be combined in order explain complex spectra at synchrotron and FEL light sources. Here, I present and discuss the (design of the) Ratip program, of which a major part now becomes public. Selected examples refer to the — direct and sequential — double ionization of various atoms [2,3].
S. Fritzsche, submitted to Comput. Phys. Commun. (2011).
P. Linusson et al., Phys. Rev. A 83 (2011) 023424.
S. Fritzsche et al., J. Phys. B 44 (2011) 175602.

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