1. Budker Institute of Nuclear Physics, 11 Lavrentjev Avenue, Novosibirsk, 630090, Russia
2. Novosibirsk State University, 2 Pirogova Street, Novosibirsk, 630090, Russia
3. Institute of Plasma Physics of the NSC KIPT, 1 Akademicheskaya Street, Kharkov, 61108, Ukraine