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Erlangen 2022 – wissenschaftliches Programm

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SYLA: Symposium Laboratory Astrophysics

SYLA 1: Laboratory Astrophysics

SYLA 1.2: Hauptvortrag

Montag, 14. März 2022, 14:30–15:00, Audimax

Inner-shell photoabsorption of atomic and molecular ions — •Stefan Schippers — Justus-Liebig-Universität Gießen

Recent experimental work on the photoabsorption of atomic and molecular ions will be reviewed that has been carried out at the photon-ion merged-beams setup PIPE [1], a permanently installed end station at the XUV beamline P04 of the PETRA III synchrotron radiation source operated by DESY in Hamburg, Germany. Selected results [2] on, e.g., single and multiple L-shell photoionization of low-charged iron ions and on single and multiple K-shell photoionization of negatively and (multiply) positively charged carbon and silicon ions will be discussed in astrophysical contexts as well as inner-shell photoabsorption of molecular ions. These experimental results bear witness of the fact that the implementation of the photon-ion merged-beams method at one of the world’s brightest synchrotron light sources has led to a breakthrough for the experimental study of inner-shell photoabsorption processes with ions.
[1] S. Schippers, T. Buhr, A. Borovik Jr., K. Holste, A. Perry-Sassmannshausen, K. Mertens, S. Reinwardt, M. Martins, S. Klumpp, K. Schubert, S. Bari, R. Beerwerth, S. Fritzsche, S. Ricz, J. Hellhund, and A. Müller, X-Ray Spectrometry 49, 11 (2020) (doi: 10.1002/xrs.3035).
[2] S. Schippers and A. Müller, Atoms 8, 45 (2020) (doi: 10.3390/atoms8030045).

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