Affiliation: Extreme Light Infrastructure - Nuclear Physics (ELI-NP), Horia Hulubei National Institute of Physics and Nuclear Engineering, 30 Reactorului St., Mˇagurele, Ilfov 077125, Romania
Engineering and Applications of Lasers and Accelerators Doctoral School (SDIALA), National University of Science and Technology Politehnica of Bucharest, 313 Splaiul Independent,ei St., Bucharest RO-060042, Romania
Physics Doctoral school, University of Bucharest, 405 Atomistilor St., Mˇagurele, Ilfov 077125, Romania