Composite scintillators based on the crystals and single crystalline films of LuAG garnet doped with Ce3+, Pr3+ and Sc3+ ions

被引：14
|
作者：
Witkiewicz-Lukaszek, S. [1 ,5 ]
Gorbenko, V. [1 ,2 ]
Zorenko, T. [1 ,2 ]
Paprocki, K. [1 ]
Sidletski, O. [3 ]
Gerasymov, I. [3 ]
Mares, J. A. [4 ]
Kucerkova, R. [4 ]
Nikl, M. [4 ]
Zorenko, Yu [1 ,2 ]
机构：
[1] Kazimierz Wielki Univ Bydgoszcz, Inst Phys, Powstancow Wielkopolskich Str 2, PL-85090 Bydgoszcz, Poland
[2] Ivan Franko Natl Univ Lviv, Elect Dept, Dragomanova Str 5, UA-79005 Lvov, Ukraine
[3] Natl Acad Sci Ukraine, Inst Scintillat Mat, Av Nauki 60, UA-61001 Kharkov, Ukraine
[4] Acad Sci Czech Republ, Inst Phys, Cukrovarnicka Str 10, CR-16200 Prague, Czech Republic
[5] Poznan Univ Tech, Fac Tech Phys, Piotrowo Str 3, PL-60965 Poznan, Poland
来源：
OPTICAL MATERIALS | 2018年 / 84卷
关键词：
alpha-particles and gamma-quanta; Composite scintillator; Liquid phase epitaxy; LuAG; Films and crystals; Ce3+; Pr3+ and Sc3+ dopants; ANTISITE DEFECTS; LUMINESCENCE;
D O I：
10.1016/j.optmat.2018.07.066
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work is devoted to the development of new types of advanced composite scintillators based on the single crystalline films (SCFs) of Lu3Al5O12(LuAG) garnet, doped with Pr3+ and Sc3+ ions, and substrate from single crystals (SCs) of Ce3+ doped LuAG using the technology of liquid phase epitaxy (LPE). We show the possibility of the simultaneous registration of alpha-particles and gamma-quanta by means of separation of the decay kinetics of SCF and crystal parts of such composite scintillators. Namely, the significant differences in the pulse height spectra and the scintillation decay kinetics of LuAG:Pr SCF/LuAG:Ce SC and LuAG:Sc SCF/LuAG:Ce SC composite scintillators under excitation by a-particles of Am-241 (5.5 MeV) source and gamma-quanta of Cs-137 (662 keV) source are observed. For these reasons, such types of composite scintillators can be applied for separation of the signals coming from their film and crystal parts at the registration of the mixed radiation fluxes of a-particles and gamma-quanta.
引用
收藏
页码：593 / 599
页数：7
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