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 ...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.展开更多
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。
文摘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.
