E. Burzo (Faculty of Physics, Babes-Bolyai University 40084 Cluj-Napoca, Romania), P. Vlaic (University of Medicine and Pharmacy “Iuliu Hatieganu”, Physics and Biophysics Department Cluj-Napoca, Romania), A. Ostlin (Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany), L. Chioncel (Augsburg Center for Innovative Technologies (ACIT), D-86135 Augsburg, Germany)

DN-6 facility (IBR-2 pulsed reactor, Dubna, Russia)