Efficiency measurement and Monte Carlo simulations of a CeBr3 scintillator

E Picado; M Carmona-Gallardo; J Cal-González; L M Fraile; H Mach; J M Udías; V Vedia

doi:10.1016/j.apradiso.2016.11.017

Efficiency measurement and Monte Carlo simulations of a CeBr₃ scintillator

Appl Radiat Isot. 2017 Feb:120:71-75. doi: 10.1016/j.apradiso.2016.11.017. Epub 2016 Nov 23.

Authors

E Picado¹, M Carmona-Gallardo², J Cal-González², L M Fraile³, H Mach⁴, J M Udías², V Vedia²

Affiliations

¹ Grupo de Física Nuclear, Facultad de CC. Físicas, Universidad Complutense, 28040 Madrid, Spain; Departamento de Física, Universidad Nacional de Costa Rica, Heredia, Costa Rica.
² Grupo de Física Nuclear, Facultad de CC. Físicas, Universidad Complutense, 28040 Madrid, Spain.
³ Grupo de Física Nuclear, Facultad de CC. Físicas, Universidad Complutense, 28040 Madrid, Spain. Electronic address: lmfraile@ucm.es.
⁴ Grupo de Física Nuclear, Facultad de CC. Físicas, Universidad Complutense, 28040 Madrid, Spain; National Centre for Nuclear Research, Division for Nuclear Physics, BP1, Warsaw, Poland.

PMID: 27918919
DOI: 10.1016/j.apradiso.2016.11.017

Abstract

CeBr₃ crystals meet many of the demands of high performance scintillators, due to their excellent timing properties, good effective Z and high photon yield. It is important to characterize their efficiency and to verify whether modern Monte Carlo codes are reliable enough to reproduced the observed values. We report here on the measurement of both total and photopeak efficiency of a 1" diameter×1" height CeBr₃ crystal for gamma-ray energies up to 1.4MeV at several distances, using a variety of low energy gamma rays sources. The measured experimental efficiencies are compared with simulations developed in the framework of PENELOPE and GEANT4.

Keywords: CeBr(3); Experimental efficiency; GEANT4 simulation; Inorganic scintillators; Monte Carlo; PENELOPE simulation.