Erlangen 2018 – scientific programme
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A: Fachverband Atomphysik
A 27: XUV/X-ray Science
A 27.6: Talk
Wednesday, March 7, 2018, 15:15–15:30, K 1.011
Ion-source Development for Inner-Shell Photodetachment of Negative Ions — •Alexander Perry-Saßmannshausen1, Paul Willamowski1, Ticia Buhr1, Alfred Müller2, and Stefan Schippers1 — 1I. Physikalisches Institut, Justus-Liebig-Universität Gießen — 2Institut für Atom- und Molekülphysik, Justus-Liebig-Universität Gießen
A research plan has been devised for studying inner-shell photoionization of negative atomic ions at the PIPE end station of beam line P04 of PETRA III at DESY in Hamburg. First results have already been obtained for double and triple photodetachment of O− [1] and F− [2] ions resulting from K-shell ionization or excitation. In the future, also heavier ions will be investigated. To this end, a new Cs-sputter ion source is currently commissioned in Giessen. Results from performance tests of the new ion source will be presented.
[1] S. Schippers et al., Phys. Rev. A 94, 041401(R) (2016).
[2] A. Müller et al., (submitted).