O.A. Ryabushkin - Ph.D. (Phys.-Math.), Associate Professor, Moscow Institute of Physics and Technology. E-mail: roa228@mail.ru
A.V. Konyashkin - Ph.D. (Phys.-Math.), Moscow Institute of Physics and Technology. E-mail: akonj@mail.ru
A.I. Baranov - Post-graduate Student, Moscow Institute of Physics and Technology. E-mail: aBaranov@ntoire-polus.ru
O.I. Vershinin - Post-graduate Student, Moscow Institute of Physics and Technology. E-mail: oVershinin@ntoire-polus.ru