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A: Fachverband Atomphysik
A 22: Poster Session - Atomic Physics III
A 22.18: Poster
Mittwoch, 11. März 2020, 16:00–18:00, Empore Lichthof
Inner-Shell Multiple Photodetachment of Carbon Anions — •Alexander Perry-Sassmannshausen1, Alexander Borovik Jr.1, Ticia Buhr1, Michael Martins2, Alfred Müller1, Simon Reinwardt2, Sandor Ricz3, Florian Trinter4,5, and Stefan Schippers1 — 1Justus-Liebig-Universität Gießen, Germany — 2Universität Hamburg, Germany — 3Atomki, Debrecen, Hungary — 4FS-PE, DESY, Hamburg, Germany — 5Molecular Physics, Fritz-Haber-Institut, Berlin, Germany
Negative atomic ions play an important role in low temperature plasmas such as Earth’s upper atmosphere or the interstellar medium [1,2]. A sensitive tool for studying the interactions between the valence and the core electrons is inner-shell ionization of negative ions [3].
Here we report on preliminary results from a recent beam time at the Photon-Ion-Spectrometer at P04 at PETRA III (PIPE) [4]. We investigated multiple photodetachment of carbon anions which led to final charge states up to C4+. Absolute cross sections for all measurable product ion channels will be presented and discussed.
[1] T. Andersen, Phys. Rep. 394, 157 (2004)
[2] T. Millar et al., Chem. Rev. 117, 1765 (2017)
[3] S. Schippers et al., Phys. Rev. A 94 041401(R) (2016)
[4] S. Schippers et al., J. Phys. B 47, 115602 (2014)