D.N. Sokolov - Postgraduate student of department of the theoretical physics, Tver State University. E-mail: dnsokolov@mail.ru
N.Yu. Sdobnyakov - Associate professor of department of the theoretical physics, Tver State University. E-mail: nsdobnyakov@mail.ru
A.Yu. Kolosov - Postgraduate student of department of the theoretical physics, Tver State University. E-mail: kolosov-au@yandex.ru
N.V. Novozhilov - Postgraduate student of department of the theoretical physics, Tver State University. E-mail: nnowhereman@gmail.com
A.S. Antonov - Postgraduate student of department of the theoretical physics, Tver State University. E-mail: s014451@mail.ru

V.V. Koledov - Dr.Sc. (Phys.-Math.), Leading Researcher, Kotelnikov IRE RAS E.V. Morozov - Leading Engineer, Kotelnikov IRE RAS V.G. Shavrov - Dr.Sc. (Phys.-Math.), Head of Laboratory, Kotelnikov IRE RAS