Fabrication, optical and scintillation properties of (Lu 0.75 ,Y 0.25 )AG:Pr ceramic scintillators
| Autor: | Yan Zhang, Lin Ge, Chen Hu, Huamin Kou, Xiqi Feng, Jiayue Xu, Jiang Li, Yubai Pan |
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| Rok vydání: | 2017 |
| Předmět: |
Photoluminescence
Materials science Analytical chemistry 02 engineering and technology Scintillator 01 natural sciences law.invention Inorganic Chemistry Optics law 0103 physical sciences Ceramic Electrical and Electronic Engineering Physical and Theoretical Chemistry Absorption (electromagnetic radiation) Electron paramagnetic resonance Spectroscopy 010302 applied physics Scintillation Transparent ceramics business.industry Organic Chemistry Radioluminescence 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials visual_art visual_art.visual_art_medium 0210 nano-technology business |
| Zdroj: | Optical Materials. 69:214-218 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2017.04.043 |
| Popis: | Y 3+ admixing Lu 3 Al 5 O 12 :Pr ceramics are fabricated successfully by the solid state reaction method and further optimized by an air-annealing process. Optical absorption, photoluminescence spectra and scintillation properties such as radioluminescence, and light output are measured and compared with those of the Y 3+ free LuAG:Pr ceramics. Positive effect of Y 3+ codopant consists mainly in the significant increase of scintillation light output, as well as the decrease of relative intensity of slow component. With 0.15% Pr 3+ codoping, the obtained LuYAG:Pr ceramic displays a light output of 28500 ph/MeV at 3 μs shaping time, higher than that of the LuAG:Pr ceramic scintillators ever report. The effect of Y 3+ admixture is further explained by vacuum ultraviolet and electron spin resonance experiment. |
| Databáze: | OpenAIRE |
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