E.V. Lugovoy, S.P. Avdeev, P.V. Serba, M.V. Rubashkina, V.V. Tkachuk
N.Ya. Roukhlyada - Dr. Sc. (Phys.-Math.), Associate Professor, Professor, Obninsk Institute for Nuclear Power Engineering. E-mail: ruh@iate.obninsk.ru
R.K. Visheratin - Post-graduate Student, Obninsk Institute for Nuclear Power Engineering. E-mail: visher@mail.ru