Scintillation and spectroscopic properties of Ce3+-doped YAlO3 and Lux(RE)1-xAlO3(RE = Y3+ and Gd3+) scintillators
Scintillation and spectroscopic properties of Ce3+-doped YAlO3 and Lux(RE)1-xAlO3(RE = Y3+ and Gd3+) scintillators
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DOI：
10.1016/s0168-9002(02)01996-4
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发表时间：
2003-02-11
影响因子：
1.4
通讯作者：
Dorenbos, P
中科院分区：
文献类型：
--
作者：
Mares, JA;Nikl, M;Dorenbos, P
Scintillation properties like photoelectron yield and light yield of Ce3+-doped YAlO3 and mixed Lu-x(RE)(1-x)AlO3 (RE = Y3+ and Gd3+) perovskite crystals are presented. The photoelectron yields increase almost linearly with gamma-ray energy but a small non-linearity is observed around 40 keV. Scintillation and spectroscopic properties like UV or X-ray excited emission, laser excited emission, excitation and absorption spectra and photo- and scintillation decay of the different crystals are compared. The influence of intrinsic absorption and reflecting tape on the yields are discussed. Selected YAlO3:Ce showed the highest light yield of 25,000 phels/MeV and an energy resolution of 4.5 % for 662 keV gamma-radiation. The gamma-ray linear absorption coefficient increases with Lu content and that of LuAlO3:Ce is almost 10 times higher than that of YAlO3:Ce. (C) 2002 Elsevier Science B.V. All rights reserved.
