Properties of lead tungstate crystals for high-energy physics

摘要

Technology for the mass production of high-quality PbWO4 (PWO) scintillating crystals is described. Scintillators produced from PWO crystals are intented for the ALICE CERN heavy ion experiment. Light yield, emission and decay time spectra as well as optical transmission of about 3600 crystals (dimensions 22 x 22 x 180 mm(3)) were measured. Beam-test results of the ALICE PHOS prototype obtained with such PWO crystals are presented. (C) 2004 Elsevier Ltd. All rights reserved.