1. ELI Beamlines, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic
2. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 11519 Prague, Czech Republic
3. Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, 619-0215 Kyoto, Japan
4. Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., 10617 Taipei, Taiwan
5. Prokhorov Institute of General Physics, Russian Academy of Sciences, Vavilova 38, 119991 Moscow, Russia