1. ETH Zürich, Rämistrasse 101, 8092 Zürich, Switzerland
2. European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France
3. Department of Physics and Astronomy, University of Turku, 20014 Turun yliopisto, Finland
4. Physics Department and IRIS Adlershof, Humboldt Universität zu Berlin, Zum grossen Windkanal 2, 12489 Berlin, Germany
5. Technische Universität Dortmund, Fakultät Physik/DELTA, Maria-Goeppert-Mayer-Strasse 2, 44227 Dortmund, Germany
6. Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon S7N 5E2, Canada