Taheri-Saramad x-ray detector (TSXD): a novel high spatial resolution x-ray imager based on ZnO nano scintillator wires in polycarbonate membrane.
Taheri-Saramad x-ray detector (TSXD): a novel high spatial resolution x-ray imager based on ZnO nano scintillator wires in polycarbonate membrane.
复制标题
DOI：
10.1063/1.4862468
复制
发表时间：
2014-01
期刊：
影响因子：
--
通讯作者：
Ali Taheri;S. Saramad;S. Ghalenoei;Saeed Setayeshi
中科院分区：
文献类型：
--
作者：
Ali Taheri;S. Saramad;S. Ghalenoei;Saeed Setayeshi
设计并制造了一种基于 ZnO 纳米线的新型 X 射线成像仪。所提出的结构基于聚碳酸酯径迹蚀刻膜中 ZnO 纳米结构的闪烁特性。由于 ZnO 纳米线的折射率比膜更高，因此纳米线充当光纤，防止生成的光学光子在探测器内传播。这种效果提高了成像仪的空间分辨率。所制造的成像器的检测量子效率和空间分辨率分别为11%和<6.8 μm。
A novel x-ray imager based on ZnO nanowires is designed and fabricated. The proposed architecture is based on scintillation properties of ZnO nanostructures in a polycarbonate track-etched membrane. Because of higher refractive index of ZnO nanowire compared to the membrane, the nanowire acts as an optical fiber that prevents the generated optical photons to spread inside the detector. This effect improves the spatial resolution of the imager. The detection quantum efficiency and spatial resolution of the fabricated imager are 11% and <6.8 μm, respectively.