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SAMOP 2023 – scientific programme

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A: Fachverband Atomphysik

A 27: Poster III

A 27.37: Poster

Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof

Compton polarimetry on Rayleigh scattering of highly linearly polarized hard x-rays on gold atoms — •Wilko Middents1,2,3, Günter Weber1,3, Alexandre Gumberidze3, Thomas Krings4, Philip Pfäfflein1,2,3, Uwe Spillmann3, Sophia Strnat5,6, Andrey Surzhykov5,6, and Thomas Stöhlker1,2,31Helmholtz Institut Jena — 2Friedrich-Schiller-Universität Jena — 3GSI Helmholtzzentrum für Schwerionenforschung GmbH — 4Forschungszentrum Jülich — 5Physikalisch-Technische Bundesanstalt Braunschweig — 6Technische Universität Braunschweig

Rayleigh scattering of hard x-rays refers to the elastic scattering of photons on bound electrons [1]. State-of-the-art calculations in the framework of QED predict a strong dependence of the polarization characteristics of the scattered radiation on the scattering geometry [2].

We performed an experiment on the polarization transfer in Rayleigh scattering of a highly polarized hard x-ray beam on a thin gold target, extending on a previous study by Blumenhagen et al. [3]. A state-of-the-art Compton polarimeter [4] was used to precisely determine the linear polarization of the scattered radiation both within and out of the polarization plane of the incident synchrotron beam. In this contribution we will report on the setup and first results of the experiment.

[1] Kane, P. P. et al., (1986), Phys. Rep. 140(2), 75, [2] Strnat, S. et al., (2021), Phys. Rev. A, 103(1), 012801, [3] Blumenhagen, K. H. et al., (2016), New J. Phys. 18, 119601, [4] Vockert, M. et al., (2017), NimB 408, 313

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