화학공학소재연구정보센터
Journal of Crystal Growth, Vol.393, 156-158, 2014
Growth of KPb2Cl5 and K2CeCl5 for gamma ray detection using vertical Bridgman method
We report the scintillation properties of both KPb2Cl5 and K2CeCl5 grown by vertical Bridgman method from synthesized and zone refined material. Both crystals exhibit minimal hygroscopic properties, which is desirable in applications where hermitization is not feasible. The KPb2Cl5 crystal, doped with 2.5 mol% of EuCl2, appeared yellow in color and did not scintillate, while the self activated transparent K2CeCl5 did. The energy resolution and decay time at 662 keV were measured to be 6.1% and 78 ns respectively, with a light yield of 31,000 photons/MeV. (C) 2013 Elsevier B.V. All rights reserved.