Crystal growth and scintillation properties of CsCaBr3:Eu2+ (CsCa1-xEuxBr3, 0 ≤ x ≤ 0.08)

A series of CsCa1-xEuxBr3 (0 <= x <= 0.08) single crystals has been grown using the Bridgman-Stockbarger technique and their luminescent and scintillation properties have been studied. The radioluminescence spectra of CsCaBr3:Eu2+ (with 0.5, 1.0, 3.0, 5.0 and 8.0 mol% of Eu2+) materials include a narrow band with the maximum which position is shifted from 442 to 447 nm with the increase of Eu2+ concentration in the growth melt. The maximal light yield achieves 28,000 ph/MeV at CsCa0.92Eu0.08Br3 with energy resolution of 9.3% at 662 keV. (C) 2013 Elsevier B.V. All rights reserved.