A.Kh. Abduev1, A.Sh. Asvarov2, A.K. Akhmedov3, S.V. Agasieva4, V.V. Belyaev5, A.S. Borisova6, L.S. Flyzhnikova7, F.M.A. Abdelrkhman8

1, 4–8 Peoples' Friendship University of Russia (Moscow, Russia),
2, 3 Institute of Physics, Dagestan Federal Research Center of the Russian Academy of Sciences (Makhachkala, Republic Dagestan)
5 Moscow State Regional University (Mytishchi, Moscow Region, Russia)