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

• Published in: Journal of crystal growth 2013-05, Vol.371, p.112-116
• Main Authors: Grippa, A.Yu, Rebrova, N.V., Gorbacheva, T.E., Pedash, V.Yu, Kosinov, N.N., Cherginets, V.L., Tarasov, V.A., Tarasenko, O.A., Lopin, A.V.
• Format: Article
• Language: English
• Subjects: A1. Radiation; A2. Bridgman technique; A2. Single crystal growth; B1. Halides; B2. Scintillator materials; Band spectra; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from melts; zone melting and refining; Materials science; Methods of crystal growth; physics of crystal growth; Physics
• ISSN: 0022-0248; 1873-5002
• DOI: 10.1016/j.jcrysgro.2013.02.020

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 8.0mol% of Eu2+) materials include a narrow band with the maximum which position is shifted from 442 to 447nm with the increase of Eu2+ concentration in the growth melt. The maximal light yield achieves 28,000ph/MeV at CsCa0.92Eu0.08Br3 with energy resolution of 9.3% at 662keV. ► A new CsCa1−xEuxBr3 (0≤x≤0.08) scintillation material has been studied. ► The crystals were grown using the Bridgman–Stockbarger technique. ► All the crystals had excellent transparency. ► The maximal light yield is 28,000ph/MeV with energy resolution of 9.3% at 662keV. ► The main decay time constant for CsCa0.92Eu0.08Br3 is 6.097±0.002μs.