Journal of Materials Science & Technology ( IF 11.2 ) Pub Date : 2022-05-28 , DOI: 10.1016/j.jmst.2022.04.041
Junzhou Tang , Shichao Lv , Ziyu Lin , Guanxin Du , Manyun Tang , Xu Feng , Junpeng Guo , Xiang Li , Junfeng Chen , Lei Wei , Jianrong Qiu , Shifeng Zhou
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The construction of scintillating ceramics is of great technological importance for various fundamental applications, including medical diagnostic, security inspection, resource exploration and particle physics. The chief challenge is the facile and scalable synthesis of scintillating ceramics with the desirable combination of pore-free, reliable mechanical properties and excellent scintillating performance. Here we present a pressureless glass crystallization strategy for the construction of scintillating composite with high crystallinity. The fabricated scintillating composites are featured by small optical turbidity, excellent mechanical properties, and efficient scintillating luminescence with the scintillating light yield of 15,000 pH/MeV and about 2.46 times higher than that of the commercial BGO single crystal. Moreover, the scintillating composite derived radiation detector device is successfully elaborated. The practical application for monitoring gamma ray is demonstrated and the precision of the device is less than that of the tolerable deviation of 30%. Our results suggest an innovative approach for expanding the category of scintillating material candidates, pointing to practical application in the field of radiation detection.
中文翻译:
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用于辐射探测的高结晶度闪烁复合材料的玻璃无压结晶
闪烁陶瓷的构造对于各种基础应用具有重要的技术意义,包括医学诊断、安全检查、资源勘探和粒子物理。主要挑战是闪烁陶瓷的简便且可扩展的合成,具有无孔、可靠的机械性能和出色的闪烁性能的理想组合。在这里,我们提出了一种无压玻璃结晶策略,用于构建具有高结晶度的闪烁复合材料。所制备的闪烁复合材料具有光学浊度小、机械性能优良、闪烁发光效率高等特点,闪烁光产率为15,000 pH/MeV,是商业BGO单晶的2.46倍。而且,闪烁复合衍生辐射探测器装置研制成功。对伽马射线监测的实际应用进行了论证,该装置的精度小于30%的容许偏差。我们的研究结果提出了一种扩展闪烁材料候选类别的创新方法,指向辐射检测领域的实际应用。