کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7906414 | 1510754 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Europium-doped lutetium oxide (Eu:Lu2O3) nano-powders were synthesized by a co-precipitation method from europium and lutetium nitrates using ammonium hydrogen carbonate (AHC) as the precipitant. Fine and low-agglomerated powders with average particle size of 68â¯nm were obtained by calcining the precursor at 1100â¯Â°C for 4â¯h. Using this powder as starting material, Eu:Lu2O3 transparent ceramics with the average grain size of â¼46â¯Î¼m were fabricated by vacuum sintering at 1650â¯Â°C for 30â¯h, whose in-line transmittance reaches 66.3% at 611â¯nm. The influences of air annealing on optical transmittance, decay time, spectroscopic properties, light output and thermally stimulated luminescence of Eu:Lu2O3 ceramics were investigated in detail. Based on radioluminescence spectra, the light output of the annealed Eu:Lu2O3 ceramics is 10 times higher than that of the commercially available BGO single crystal, and it indicates that transparent Eu:Lu2O3 scintillation ceramics is a promising candidate for X-ray radiation detectors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 80, June 2018, Pages 22-29
Journal: Optical Materials - Volume 80, June 2018, Pages 22-29
نویسندگان
Weifeng Xie, Jing Wang, Maoqing Cao, Zewang Hu, Yagang Feng, Xiaopu Chen, Nan Jiang, Jiawei Dai, Yun Shi, Vladimir Babin, Eva Mihóková, Martin Nikl, Jiang Li,