O.A. Gevorgian – Engineer of the 2nd category, PJSC «Radiofizika» (Moscow); Post-graduate Student, Moscow Technological University (MIREA)

E-mail: useworkstudy@hotmail.com

A.L. Gelgor – Ph.D.(Eng.), Associate Professor, Higher School of Applied Physics and Space Technologies  of Peter The Great St. Petersburg Polytechnic University

E-mail: A_Gelgor@mail.ru

Nguyen Tan Hoang Phuoc – Post-graduate Student, Higher School of Applied Physics and Space Technologies  of Peter The Great St. Petersburg Polytechnic University E-mail: hoangphuoc1704@yahoo.com

S.B. Makarov – Dr.Sc.(Eng.), Professor, 

Higher School of Applied Physics and Space Technologies of Peter The Great St. Petersburg Polytechnic University E-mail: makarov@cee.spbstu.ru

A.M. Markov – Leading Engineer, 

Peter The Great St. Petersburg Polytechnic University E-mail: markov@cee.spbstu.ru