Design and Synthesis of Tb~(3+)-doped KGW Crystal for the Exploration of Scintillation Performance with X-ray Imaging |
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| Authors: | XU Hui XU Wei-Wei XU Liu-Wei WANG Zhi-Lin WANG Shuai-Hua SU Qing ZHANG Bi-Sheng ZENG Qing-You WU Shao-Fan |
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| Affiliation: | College of Chemistry,Fuzhou University,Fuzhou 350108,China;Key Laboratory of Optoelectronic Materials Chemistry and Physics,Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Key Laboratory of Optoelectronic Materials Chemistry and Physics,Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Fujian Communications Planning&Design Institute Company,Fuzhou 350004,China;Fujian Luhai Engineering Investigation&Designing Company,Fuzhou 350000,China |
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| Abstract: | X-ray scintillators have been widely used in many fields owing to their strong penetrating ability,including security inspection, medical imaging, nuclear cameras, high energy physics and so forth. To explore new scintillation materials, we designed and synthesized KGW:Tb bulk scintillation crystals with monoclinic phase structure. We explored the fluorescence performance of KGW:Tb by testing the photoluminescence spectrum and fluorescence decay curve and observed strong green light emission in the visible light range at room temperature.Moreover, our crystal has a high stability under X-ray irradiation, a good sensitivity response and an appreciable light output(3424 ph/MeV) that is approximately twenty times more than PbWO_4. Moreover, we used a 0.98 mm thickness polished crystal sheet for X-ray imaging applications and observed excellent results. Therefore, KGW:Tb crystal may be an important direction for X-ray scintillation detection. |
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