[1] RAS, AM Prokhorov Gen Phys Inst, Vavilova St 38, Moscow 119991, Russia
[2] RAS, PN Lebedev Phys Inst, Leninsky Prospekt 53, Moscow 119991, Russia
[3] Natl Res Nucl Univ MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia
[4] Moscow Inst Aviat Technol, Volokolamskoe Shosse 4, Moscow 125993, Russia