1. York Plasma Institute, Department of Physics, University of York, York YO10 5DQ, United Kingdom
2. Université de Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence, France
3. Institute of Physics and ELI Beamlines, Czech Academy of Sciences, Czech Republic
4. Donostia International Physics Center (DIPC), Donostia/San Sebastian, Basque Country, Spain
5. Dipartimento SBAI, Università degli Studi di Roma “La Sapienza,” Via Antonio Scarpa 14, 00161 Roma, Italy
6. Intense Laser Irradiation Laboratory, INO CNR (National Council of Research), Pisa, Italy
7. Helmholtz-Zentrum Dresden-Rosendorf, Dresden, Germany
8. Institute of Plasma Physics, Czech Academy of Sciences, Prague, Czech Republic