用于同步辐射成像的高分辨闪烁探测器关键材料与技术

Considering the requirement of synchrotron radiation apparatus and its future upgrading, this project is planning to focus on the study of key materials and technologies on high resolution of detectors for imaging, the emphasis is on scintillator ceramics with performance of high energy resolution, fast decay and high light yield, mainly LuAG and YAG with cubic garnet structure, processing technology for pixel scintillator plate, coupling technology with CCD detecors, as well as high integrated CCD read technology. it is aimed to investigated detector models having low signal-to-noise, high resolution, fast decay pixel array, base on which, to push the developing of complex energy resolution detectors, high energy and fast imaging detector and the super fast X ray detector. It is expected to contribute to the large scientific felicities and the synchrotron radiation imaging technology of our country by the study of this project.

针对我国同步辐射装置等大科学装置的目前发展需求和未来发展趋势，开展用于高分率成像探测器的关键材料与关键技术研究，重点研究高能量分辨率、快衰减、高光输出的闪烁透明陶瓷（以石榴石结构，LuAG、YAG为主）、像素化闪烁屏加工技术，与CCD光电探测器件耦合技术、以及高集成度CCD读出电子学等关键技术，研制具有低信噪比、高分辨率、快成像等高性能像素阵列探测器原型，以此突破关键点，推进多元能量分辨探测器、高能快速成像探测器以及超快X射线探测器技术的研究，促进我国同步辐射成像技术的发展，为我国大科学装置的建设和应用做出贡献。

本项目重点研究了石榴石结构闪烁陶瓷和平板探测器，以LuAG和YAG多组分为主，通过第一性原理计算等组分设计方案设计开发了了具有优异能量分辨率、快衰减、高光输出的石榴石结构闪烁陶瓷组分，开展透明陶瓷的光谱调控和关键制备技术的研究；平板探测器的研制主要包括纤维光锥分别和闪烁屏以及CCD的耦合工艺研究，高性能CCD驱动电路的研制与开发、闪烁屏和探测器的综合性能评价等。