1. Hamburg University of Technology, Eissendorfer Str. 42, 21073 Hamburg, Germany
2. Max-Planck-Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
3. Center for Free Electron Laser Science, Notkestrasse 85, 22607 Hamburg, Germany
4. Department of Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
5. Centre for Ultrafast Imaging, Luruper Chaussee 149, 22607 Hamburg, Germany
6. Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Building 99, 22607 Hamburg, Germany