1. Scintillation materials based on metal iodates by rare earth doping modifications for use in radioluminescence and X-ray imaging.
- Author
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Xu, Weiwei, Xu, Hui, Wang, Shuaihua, Wang, Zhilin, Xu, Xieming, Zhang, Xianhui, and Wu, Shaofan
- Subjects
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RARE earth metals , *X-ray imaging , *TERBIUM , *RADIOLUMINESCENCE , *SCINTILLATORS , *DOPING agents (Chemistry) , *PHOTONS - Abstract
Scintillators, which can emit visible photons under γ- or X-ray excitation, are widely used in radiation detection. Traditional inorganic scintillators usually have some drawbacks, such as hygroscopicity or a high synthesis temperature, and most of them are poisonous. Hence, we report the synthesis of metal iodate scintillators (Eu(IO3)3 and Tb(IO3)3) by a facile hydrothermal reaction that exhibit good radioluminescence (RL) intensity. To further increase the RL intensities, we prepared Eu(IO3)3:xSm and Tb(IO3)3:xGd with stronger RL intensities and higher sensitivities than BaF2 and PbWO4 powders when x = 3%. Furthermore, we obtained scintillating films consisting of Eu(IO3)3:3%Sm and Tb(IO3)3:3%Gd for X-ray imaging. Our Eu(IO3)3:3%Sm and Tb(IO3)3:3%Gd films revealed excellent luminescence under high-energy X-ray excitation and spatial resolutions down to 9 lp mm−1 and 8 lp mm−1, respectively. Thus, these films can be regarded as candidate materials for X-ray imaging. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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