V.M. Andreev - Dr. Sc. (Eng.), Professor, Ioffe Physical-Technical Institute (St Petersburg) D.F. Zaitsev - Dr. Sc. (Eng.), Main Designer, Laboratory RFS, JSC «CRET» E-mail: zaysev@yandex.ru N.Yu. Novikov - Ph. D. (Eng.), Deputy Head of Laboratory RFS, JSC «CRET» V.S. Kalinovsky - Senior Research Scientist, Ioffe Physical-Technical Institute (St Petersburg) D.V. Mordasov - Junior Research Scientist, Laboratory RFS, JSC «CRET» S.O. Slipchenko - Ph. D. (Phys.-Math.), Senior Research Scientist, Ioffe Physical-Technical Institute (St Petersburg) I.S. Tarasov - Dr. Sc. (Phys.-Math.), Professor, Main Research Scientist, Ioffe Physical-Technical Institute (St Petersburg) A.I. Fadeev - Junior Research Scientist, Laboratory RFS, JSC «CRET»

D.V. Ivanov1, V.A. Ivanov2, M.I. Ryabova3, R.R. Belgibaev4, V.V. Ovchinnikov5, A.V. Chernyadyev6

1-6 Volga State University of Technology (Yoshkar-Ola, Russia)

1 IvanovDV@volgatech.net; 2 IvanovVA@volgatech.net; 3 RyabovaMI@volgatech.net; 5 OvchinnikovVV@volgatech.net