High-Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass AITranslate

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X-ray delayed imaging technology leverages an “irradiation-storage-thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high-temperature/high-radiation environments. This typically requires materials combining abundant carrier-trapping energy levels with structural thermostability. Herein, Cr3+-doped ZnGa2O4 glass ceramics (ZGC GCs) serve as a functional platform, utilizing their deep trap energy levels (main peak 197.7°C) to efficiently capture and store X-ray imaging information, and achieve high-brightness X-ray delayed imaging by modulating the thermally stimulated detrapping rates. Under its exceptional structural thermostability and deep trap characteristics, ZGC GCs maintain high-quality delayed imaging capability by thermal stimulation even after 180°C irradiation, highlighting their potential for high-temperature nondestructive testing and surpassing the high-temperature failure threshold of conventional scintillators. This work pioneers functional applications of glass ceramics in high-temperature irradiation scenarios and offers a novel perspective for selecting harsh-environment-adapted X-ray imaging materials.