Darmstadt 2008 – scientific programme
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A: Fachverband Atomphysik
A 11: Posters: Interaction with attosecond and VUV-light
A 11.5: Poster
Tuesday, March 11, 2008, 16:30–18:30, Poster C3
DIRAC package – A new version to study interaction of the ions with the radiation field — •Andrey Surzhykov1,2 and Stephan Fritzsche1,3 — 1Max–Planck–Institut für Kernphysik, Heidelberg — 2École Normale Supérieure, Paris — 3Gesellschaft für Schwerionenforschung (GSI), Darmstadt
During the last five years, the Dirac program has been found to be an efficient and reliable computer–algebraic tool for dealing with the Coulomb wave and Green’s functions as well as their integrals [1, 2]. Owing to its user–friendly interface, this package became accessible not only to a few experts in relativistic atomic theory, but also to many scientists who have to deal with atoms and ions only occasionally. Here, we present an extension of the Dirac program for studying the interaction of the hydrogen–like ions with the radiation filed. In particular, the new Maple procedures support the symbolic as well as numerical evaluation of a whole variety of bound–bound transition properties including decay rates, angular distributions and polarization of characteristic radiation. Moreover, the revised version of the program also allows to investigate (radiative) bound–free as well as free–bound electron transitions as reflected by photoionization and radiative recombination, respectively.
[1] A. Surzhykov et al., Comput. Phys. Commun. 165 (2005) 139.
[2] S. Fritzsche et al., Nucl. Instr. Meth. B 235 (2005) 140.