Implementation of silicon photomultipliers in scintillation detector systems of the GAMMA-400 space gamma-ray telescope

A.I. Arkhangelskyi, I.V. Arkhangelskaya, А.М. Galper, М.D. Kheimitz, V.А. Kaplin, А.А. Leonov, V.А. Loginov, P. Yu. Naumov, Yu.T. Yurkin, S.N. Fedotov, V.V. Kushin, S.D. Lazarev, Е.F. Maklyaev, Yu. A. Melikyan, P.P. Naumov, М.P. Sharapov, A.А. Solodovnikov on behalf of gамма-400 collaboration National Research Nuclear University “MEPhI” (Moscow Engineering Physics Institute) 115409 Kashirskoe shosse 31 Moscow, Russia