无机材料学报Issue(8)：814-818,5.DOI:10.15541/jim20150046
LuAG：Ce，Mg闪烁陶瓷的X射线平板探测器成像研究
Flat Panel X-ray Imaging of LuAG:Ce,Mg Ceramic Scintillators
摘要
Abstract
(Lu, Mg, Ce)3Al5O12 (LuAG: Ce, Mg) transparent ceramic scintillators (LuAG: 0.3at% Ce, 0.2at% Mg) with high optical and scintillation efficiency were fabricated by solid-state reaction method combined with vacuum sintering. The ceramic scintillator with dimension of 20 mm×20 mm×0.05 mm was packed with graphite substrate of 25 mm×25 mm×4 mm by graphite powders contained silica gel. Laser cutting of cubic array with dimension of 50μm×50μm and distance of 10μm was performed. Flat panel X-ray imaging based on as prepaired ceramics was demonstrated. The images were good quality with a high resolution. The quality of the photos were evaluated by line-pair pattern method and knife edge method, respectively.MTF value of 17.5% was at 10 lp/mm for the ceramic scintillators after laser cutting, while resolution of 9 lp/mm achieved at 10%MTF by knife edge measurement. Based on above data, LuAG:Ce,Mg ceramics are proved to be a promising scintillator in flat panel X-ray imaging.关键词
LuAG:Ce,Mg/闪烁陶瓷/平板探测器/X射线成像Key words
LuAG:Ce,Mg/ceramic scintillators/flat panel detector/X-ray imaging分类
能源科技引用本文复制引用
胡辰,刘书萍,冯召东,秦秀波,石云,潘裕柏..LuAG：Ce，Mg闪烁陶瓷的X射线平板探测器成像研究[J].无机材料学报,2015,(8):814-818,5.基金项目
国家自然科学基金(11005139, U1332202) （11005139, U1332202）
上海市科委项目(13JC1405800,11JC1412400) National Science Foundation of China(11005139, U1332202) （13JC1405800,11JC1412400）
Research Program of Shanghai Sciences and Technol-ogy Commission Foundation(13JC1405800,11JC1412400) （13JC1405800,11JC1412400）
