Comparison of Lu3Al5O12:Ce and LaBr3:Ce Scintillators in Gamma-Ray Spectrometry

被引：1
作者：
Chewpraditkul, Weerapong [1 ]
Wanarak, Chalerm [1 ]
Moszynski, Marek [2 ]
Swiderski, Lukasz [2 ]
机构：
[1] King Mongkuts Univ Technol Thonburi, Dept Phys, Bangkok 10140, Thailand
[2] Soltan Inst Nucl Studies, PL-05400 Otwock, Poland
来源：
MATERIALS PROCESSING TECHNOLOGY, PTS 1-3 | 2012年 / 418-420卷
关键词：
Energy Resolution; gamma-ray detection; LaBr3:Ce; LuAG:Ce; Non-proportionality; Photofraction; ENERGY-RESOLUTION SCINTILLATOR; CRYSTALS; YAG;
D O I：
10.4028/www.scientific.net/AMR.418-420.922
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The performances of Ce-doped Lu3Al5O12 (LuAG:Ce) and LaBr3 (LaBr3:Ce) scintillators were compared for gamma-ray detection using photomultiplier tube (XP5500B PMT) readout. For 662 keV gamma-rays (Cs-137 source), an energy resolution of 3.5% obtained for LaBr3:Ce is much better than that of 6.7% obtained for LuAG:Ce, while the estimated photofraction of 28.0% for LuAG:Ce is higher than that of 16.2% for LaBr3:Ce. The light yield non-proportionality and energy resolution versus gamma-ray energy were measured and the intrinsic resolution of the crystals was calculated. The coincidence timing resolution, obtained in this work for 511 keV annihilation quanta, was 583 ps and 204 ps, respectively, for LuAG:Ce-BaF2 and LaBr3:Ce-BaF2 detectors.
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页码：922 / +
页数：3
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