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- W4292551921 endingPage "119206" @default.
- W4292551921 startingPage "119206" @default.
- W4292551921 abstract "Y3Al5O12:Ce (YAG:Ce) polycrystalline ceramics with 0.1 and 0.3 mol% Ce substituting for Y were fabricated by laser sintering and characterized in their microstructure, luminescence, thermoluminescence and scintillation in comparison to a single crystal. The polycrystalline ceramics had cubic single crystallographic phase and relative densities of 97 ± 1 and 99 ± 1% for the 0.1 and 0.3 mol% Ce concentrations, respectively. The combined results of attenuated total reflection Fourier transform infrared (ATR FTIR) spectroscopy and photoluminescence measurements showed the polycrystalline ceramics fabricated by laser sintering to contain a higher level of structural disorder than the single crystal. The consequent broadening of the luminescence bands caused enhanced self-absorption in the polycrystalline ceramics. Radioluminescence (RL) under X-ray excitation, optical transmission and photoluminescence measurements revealed the presence of numerous types of point defects, including F centers, F+ centers/perturbed F+ centers and YAl anti-sites. A detailed investigation of the thermoluminescence of YAG:Ce was executed using different methods and a complex behavior deviating from the first order kinetics mechanism was observed. The scintillation response of the polycrystalline ceramics was evaluated under low energy γ-ray irradiation." @default.
- W4292551921 created "2022-08-22" @default.
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- W4292551921 date "2022-11-01" @default.
- W4292551921 modified "2023-10-13" @default.
- W4292551921 title "Microstructure, luminescence and thermoluminescence of laser-sintered polycrystalline ceramic YAG:Ce scintillators" @default.
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- W4292551921 doi "https://doi.org/10.1016/j.jlumin.2022.119206" @default.
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