High-temperature X-ray Time-lapse Imaging Based on the Improved Scintillating Performance of Na5Lu9F32:Tb3+ Glass Ceramics

IF 8 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Rongfei Wei, Ying Chen, Li Wang, Junwei Pan, Xiangling Tian, Fangfang Hu, Hai Guo
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引用次数: 0

Abstract

Scintillating materials have advanced significantly with scientific and technological progress. However, developing scintillators capable of time-lapse imaging under extreme conditions, such as high-temperature environments, remains a formidable challenge. Herein, Tb3+-doped oxyfluoride glass ceramics (GCs) with exceptional scintillation performance and X-ray-induced persistent luminescence (PersL) are successfully fabricated. Remarkably, the luminescent intensities under ultraviolet and X-ray excitation are significantly enhanced by optimizing the Al2O3 content and inducing the precipitation of Na5Lu9F32 nanocrystals. The integral X-ray-excited luminescence intensity reaches 219.3% of that of Bi4Ge3O12. The GCs exhibit robust irradiation resistance even under high-power X-ray exposure. Real-time imaging based on GCs demonstrates a spatial resolution of 18 lp mm−1. Furthermore, the GCs display pronounced thermally stimulated PersL following X-ray excitation, attributed to the generation of Frenkel defects. This behavior facilitates the development of a time-lapse imaging technique with high-temperature visibility after X-ray irradiation, achieving an impressive spatial resolution of 14 lp mm−1, and allowing X-ray image storage for over 168 h. These findings underscore the immense potential of GC scintillators for advanced X-ray imaging applications, particularly in harsh environments.

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来源期刊
Advanced Optical Materials
Advanced Optical Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS
CiteScore
13.70
自引率
6.70%
发文量
883
审稿时长
1.5 months
期刊介绍: Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.
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