Scintillation properties of Gd3Al2Ga 3O12:Ce3+ single crystal scintillators
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Author list: Sakthong O., Chewpraditkul W., Wanarak C., Kamada K., Yoshikawa A., Prusa P., Nikl M.
Publisher: Elsevier
Publication year: 2014
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (0168-9002)
Volume number: 751
Start page: 1
End page: 5
Number of pages: 5
ISSN: 0168-9002
eISSN: 1872-9576
Languages: English-Great Britain (EN-GB)
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Abstract
The scintillation properties of Gd3Al2Ga 3O12:Ce3+ (GAGG:Ce) single crystals grown by the Czochralski method with 1 at% cerium in the melt were investigated and results were compared with so far published results in the literature. The light yield (LY) and energy resolution were measured using a XP5200B photomultiplier. Despite about twice higher LY for GAGG:Ce, the energy resolution is only slightly better than that of LuAG:Ce due to its worse intrinsic resolution and non-proportionality of LY. The LY dependences on the sample thickness and amplifier shaping time were measured. The estimated photofraction in pulse height spectra of 320 and 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program. © 2014 Elsevier B.V.
Keywords
GAGG:Ce
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