Luminescence and scintillation properties of advanced Lu3Al 5O12:Pr3+ single crystal scintillators
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Publication Details
Author list: Sreebunpeng K., Chewpraditkul W., Nikl M.
Publisher: Elsevier
Publication year: 2014
Journal: Radiation Measurements (1350-4487)
Volume number: 60
Start page: 42
End page: 45
Number of pages: 4
ISSN: 1350-4487
eISSN: 1879-0925
Languages: English-Great Britain (EN-GB)
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Abstract
In this paper we present the luminescence and scintillation properties of Lu3Al5O12:Pr (LuAG:Pr) single crystals with Pr3+ concentration of 0.13 wt %, grown by the Czochralski method. The light yield and energy resolution were measured under 662 keV γ-ray excitation. The dominant emission band peaking at 310 nm with a shoulder at 370 nm was observed in the photoluminescence spectrum. High light yield of 24,500 ph/MeV and an energy resolution of 5.3 % were obtained for a 6 × 6 × 2 mm3 LuAG:Pr sample. Light yield dependence on sample height and shaping time was measured. The estimated photofraction in pulse height spectrum and total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program. © 2013 Elsevier Ltd. All rights reserved.
Keywords
LuAG:Pr, Scintillation detectors
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