K.V. Ustenko Post-graduate Student, National Research Nuclear University «MEPhI» (Moscow) E-mail: ksustenko@yandex.ru D.V. Uskalova Post-graduate Student, National Research Nuclear University «MEPhI» (Moscow) E-mail: uskalovad@mail.ru E.I. Sarapultseva Dr.Sc. (Biol.), Associate Professor, Obninsk Institute of Nuclear Power Engineering NRNU «MEPhI» E-mail: helen-bio@yandex.ru