1. Laboratoire des Solides Irradiés, École Polytechnique, CNRS, CEA-DSM-IRAMIS, Université Paris-Saclay, F-91128 Palaiseau, France
2. European Theoretical Spectroscopy Facility (ETSF)
3. Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
4. Department of Physics, King’s College London, London WC2R 2LS, United Kingdom
5. Institut für Physik und IRIS Adlershof, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
6. Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette, France