1. Department of Electrical and Electronic Engineering, The Schlesinger Family Center for Compact Accelerators, Radiation Sources and Applications (FEL), Ariel University, Ariel 40700, Israel
2. Department of Plasma Physics and High-Power Electronics, Institute of Applied Physics, Russian Academy of Sciences, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
3. Advanced School of General and Applied Physics, National Research University “N. I. Lobachevsky State University of Nizhny Novgorod”, 603950 Nizhny Novgorod, Russia