1. European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Germany
2. SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
3. Bayerisches Geoinstitut BGI, University of Bayreuth, 95440 Bayreuth, Germany
4. Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, United Kingdom
5. Institut für Physik, Universität Rostock, 18051 Rostock, Germany