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Characterization of YAG:Ce phosphor dosimeter by the co-precipitation method for radiotherapy

Qiang Guo, Mao Li, Kun Yue, Yuheng Yan, Feiyang Xie, Changfeng Zhang, Chengbo Mou, and Gang-Ding Peng

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Abstract

Yttrium aluminum garnet (YAG) doped with Ce was synthesized via the co-precipitation method with ${\rm NH}_4{\rm HCO}_3$ as the precipitant. The spectroscopic properties and the effects of the Ce doping concentration and sintering atmosphere on the crystal phase were investigated. The dosimeter of YAG:Ce phosphor material was prepared to study the radioluminescence (RL) characteristics of a clinical linear accelerator. A satisfying linear relationship between the radiation dose and RL signal was obtained, which provided a reference for the YAG:Ce phosphor material used in radiotherapy and real-time remote radiation detection.

© 2021 Optical Society of America

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