Hannover 2010 – scientific programme
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A: Fachverband Atomphysik
A 4: Photoionization I (exchanged with A1)
A 4.3: Talk
Monday, March 8, 2010, 17:15–17:30, F 303
Photoionization of highly charged ions in the x-ray regime — •Zoltán Harman1,2, Martin C. Simon1, Maria Schwarz1, Sascha W. Epp1, José R. Crespo López-Urrutia1,3, Christoph H. Keitel1, and Joachim Ullrich1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2ExtreMe Matter Institute EMMI, Planckstrasse 1, 64291 Darmstadt, Germany — 3Max Planck Advanced Study Group, Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany
Photoionization (PI) of multiply and highly charged ions is studied theoretically by means of the multiconfiguration Dirac-Fock (MCDF) method and experimentally using an electron beam ion trap and synchrotron radiation at the BESSY II electron storage ring. The method introduced here extends the range of ions accessible for PI investigations. Experimental data on near-threshold and resonant PI of N3+, Ar8+ and Fe14+ ions, species of astrophysical and fundamental interest, show high resolution and accuracy, and agree with the present and other advanced theoretical approaches at the level of 0.1 eV at 800 eV.