A.D. Usanov - Ph. D. (Phys.-Math.), Associate Professor, Faculty of Nano- and Biomedical Technologies, Saratov State University named after N.G. Chernyshevsky. E-mail: aka_norton@mail.ru A.P. Rytik - Ph. D. (Phys.-Math.), Associate Professor, Faculty of Nano- and Biomedical Technologies, Saratov State University named after N.G. Chernyshevsky. E-mail: ra4csz@yandex.ru A.V. Bondarenko - Student, Faculty of Nano- and Biomedical Technologies, Saratov State University named after N.G. Chernyshevsky. E-mail: neznakomka317@yandex.ru N.S. Ilukhina - Student, Faculty of Nano- and Biomedical Technologies, Saratov State University named after N.G. Chernyshevsky. E-mail: Nabiy0621@gmail.com

R.I. Shabanov1, D.V. Shafransky2

1,2 PJSC Radiofizika (Moscow, Russia)

T.A. Zhilnikov1, V.I. Zhulev2, M.B. Kaplan3, A.A. Zhilnikov4

1,4 The academy of the Federal Penitentiary Service of Russia (Ryazan, Russia)

2,3 FSBEI HE Ryazan State Radio Engineering University named after V.F. Utkin (Ryazan, Russia)

1 quadrus02@mail.ru, 2 zhulev.v.i@rsreu.ru, 3 kaplan.m.b@iibmt.rsreu.ru, 4 ark9876@mail.ru