High-Efficiency ZnS: Cu+, Al3+ Scintillator for X‑ray Detection in a Non-Darkroom Environment

Scintillator is a key component in X-ray detectors that determine the performance of the devices. Nevertheless, due to the interference of the ambient light sources, scintillators are only operated in a darkroom environment currently. In this study, we designed a Cu+ and Al3+ co-doped ZnS scintillat...

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Veröffentlicht in:Inorganic chemistry 2023-05, Vol.62 (20), p.7914-7920
Hauptverfasser: Li, Xin, Zhu, Xiaodie, Tang, Haitao, Zhang, Jian, Zhou, Min, Peng, Qingpeng, Meng, Bin, Wang, Shuang, Yakovlev, ·Alexey·Nikolaevich, Zhao, Lei, Yu, Jie, Xu, Xuhui
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Sprache:eng
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Zusammenfassung:Scintillator is a key component in X-ray detectors that determine the performance of the devices. Nevertheless, due to the interference of the ambient light sources, scintillators are only operated in a darkroom environment currently. In this study, we designed a Cu+ and Al3+ co-doped ZnS scintillator (ZnS: Cu+, Al3+) that introduces donor–acceptor (D–A) pairs for X-ray detection. The prepared scintillator displayed an extremely high steady-state light yield (53,000 photons per MeV) upon X-ray irradiation, which is 5.3 times higher than that of the commercial Bi4Ge3O12 (BGO) scintillator, making it possible in X-ray detection with the interference of ambient light. Furthermore, the prepared material was employed as a scintillator to construct an indirect X-ray detector, which performed a superior spatial resolution (≈10.0 lp/mm) as well as persistent stability under visible light interference, demonstrating the feasibility of the scintillator in practical applications. Therefore, this research presented a convenient and useful strategy to realize X-ray detection in a non-darkroom environment.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.3c00719