Scintillation Characteristics of the Lu2SiO5‒z:Y3+:Ce3+:Ca2+ Crystal Module

Abstract

We report an investigation of optical and scintillation characteristics of a prototype module of an electromagnetic calorimeter based on a Lu₂SiO_5‒z:Y³⁺:Ce³⁺:Ca²⁺ crystal with the size of 20 × 20 × 90 mm³ and grown by the Czochralski method. The scintillation decay time of the crystal module excited by gamma quanta by a ¹³⁷Cs source is obtained. The energy resolution of the crystal module is estimated by simulating it with the GEANT4 program.