Perovskite-quantum-dots activated silica fiber X-ray dosimeter  

作　　者：Yuqing Xie Yue Jing Luyue Niu Ci Wang Lei Zhao Jing Ren Jianzhong Zhang 谢玉清;景岳;牛璐玥;王慈;赵雷;任晶;张建中(Key Laboratory of In-fiber Integrated Optics,Ministry of Education,Harbin Engineering University,Harbin 150001,China;State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]Key Laboratory of In-fiber Integrated Optics,Ministry of Education,Harbin Engineering University,Harbin 150001,China [2]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Optics Letters》2022年第6期61-65,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.51872055);the Fundamental Research Funds for the Central Universities,the State Key Laboratory of Particle Detection and Electronics(No.SKLPDE-KF-202108);the 111 Project(No.B13015)to the Harbin Engineering University。

摘　　要：A new type of X-ray fiber dosimeters is proposed that is based on the X-ray response of CsPbBr_(3) perovskite-quantum-dots[PQDs]activated silica fiber.Such a fiber sensor is constructed by covering a multimode silica fiber with PQDs embedded glass powders using a transparent high-temperature glue.Under X-ray irradiation,the fiber sensor emits bright green light at 525 nm,which can be readily recorded by a CCD spectrometer.The integrated radioluminescence intensity has an excellent linear response to the X-ray dose.Study is given to the fiber sensor concerning its thermal stability in a temperature range of room temperature up to 300℃,resistance to water erosion,and prolonged X-ray irradiation.The results verify that the proposed fiber sensor has the advantages of good thermal stability,chemical durability,and radiation hardness.The studied X-ray fiber sensor holds promise to be used in a real-time,in-situ,and remote radiation dose monitoring.

关 键 词：perovskite quantum dots glass ceramics X-ray radiation fiber dosimeter 

分 类 号：TH89[机械工程—仪器科学与技术]