Luminescence and scintillation properties of ce-doped LYSO and YSO crystals
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Publication Details
Author list: Wanarak C., Chewpraditkul W., Phunpueok A., Kaewkhao J.
Publisher: Trans Tech Publications
Publication year: 2011
Volume number: 199-200
Start page: 1796
End page: 1803
Number of pages: 8
ISBN: 9783037850374
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
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Abstract
The luminescence and gamma-ray detection properties of the new cerium-doped rare-earth scintillator lutetium-yttrium oxyorthosilicate ( Lu 1.95Y0.05SiO5:Ce, LYSO:Ce) were investigated and compared to those of cerium-doped yttrium oxyorthosilicate ( Y 2SiO5:Ce, YSO:Ce) crystal. The light yield and energy resolution were measured using photomultiplier tube (PMT) readout. The non-proportionality of the light yield and energy resolution versus γ-ray energy were measured and the intrinsic resolution of the crystals was calculated. In spite of significant progress in light yield and luminescence properties, the energy resolution of LYSO:Ce appears to still suffer from an excess variance in the number of scintillation photons. The mass attenuation coefficient of LYSO:Ce and YSO:Ce for 662 keV gamma rays was also measured by transmission method and compared with the theoretical values calculated by WinXCom program. © (2011) Trans Tech Publications.
Keywords
Scintillation Crystals, YSO:Ce
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