Luminescence and Scintillation Properties of Ce-Doped YAP and LuYAP Crystals

Akapong Phunpueok; WEERAPONG CHEWPRADITKUL; Pichet Limsuwan; Chalerm Wanarak

doi:10.4028/www.scientific.net/AMR.199-200.1789

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 199-200Luminescence and Scintillation Properties of...

Luminescence and Scintillation Properties of Ce-Doped YAP and LuYAP Crystals

Abstract:

The luminescence and gamma-ray detection properties of cerium-doped scintillators, namely, Lu_0.3Y_0.7AlO₃:Ce (Lu_0.3Y_0.7AP:Ce), Lu_0.7Y_0.3AlO₃:Ce (Lu_0.7Y_0.3AP:Ce ), and YAlO₃:Ce (YAP:Ce) were investigated. UV excitation and emission spectra of studied crystals were compared. The light yield and energy resolution were measured using photomultiplier tube (PMT) readout. The light yield non-proportionality and energy resolution versus gamma-ray energy were measured and the intrinsic resolution of the crystals was determined after correcting the measured energy resolution for PMT statistics. For 662 keV gamma rays (¹³⁷Cs source), YAP: Ce showed the highest light yield of 28,500 ph/MeV and the best energy resolution of 4.4 % , while its photofraction is worst.

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Advanced Materials Research (Volumes 199-200)

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1789-1795

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.199-200.1789

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Online since:

February 2011

Authors:

Akapong Phunpueok, WEERAPONG CHEWPRADITKUL, Pichet Limsuwan, Chalerm Wanarak

Keywords:

Energy Resolution, Luminescence, LuYAP:Ce, Scintillation, YAP:Ce

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