1. Russian Federal Nuclear Center – All-Russia Scientific and Research Institute of Experimental Physics (RFNC-VNIIEF) 1 , 37 Mira Ave., Sarov, Nizhny Novgorod Region 607188, Russia
2. Sarov Institute of Physics and Technology, Branch of National Research Nuclear University “Moscow Engineering Physics Institute” (SarFTI-NRNU MEPhI) 2 , 6 Dukhova St., Sarov, Nizhny Novgorod Region 607186, Russia