Customizable Scintillator of Cs₃Cu₂I₅:2% In⁺@Paper for Large‐Area X‐Ray Imaging

Abstract

High‐resolution X‐ray imaging is increasingly required for medical diagnosis and large‐area detection. However, the issues of scattering and optical crosstalk are limiting the spatial resolution of the indirect X‐ray imaging. In this study, a feasible and efficient strategy is proposed to in situ synthesize flexible Cs3Cu2I5:2%In+@paper as a superior scintillator film, which can be scaled up to an ultra‐large area of 4800 cm2. The as‐obtained Cs3Cu2I5:2%In+@paper performs a fascinating photoluminescence quantum efficiency up to 88.14%, a steady state light yield of 70169 photons/MeV, and spatial resolution of 15 lp mm−1. Moreover, the suppressed physical scattering and optical crosstalk of the corresponding film are demonstrated. Accordingly, this work explores a feasible fabrication of customizable scintillation films with large area for high‐resolution X‐ray detection.

Valence regulation in europium-doped fluoride phosphor for high-resolution X-ray time-lapse imaging

“…Since the discovery of X-ray by Ro ¨ntgen, X-ray has been widely applied in industrial inspection, scientific research, medical radiography and so on. [1][2][3][4] Accompanied by the development of applications, X-ray imaging has also become an enduring hot topic. 5,6 Over these years, metal halide perovskite scintillators with facile solution processability, ultrasensitive X-ray detection and high photo-luminescence quantum yield have attracted much attention, which allows excellent X-ray imaging properties, [7][8][9][10] such as CsPbBr 3 , 11 Cs 2 ZrCl 6 , 12 and Cs 2 AgBiBr 6 .…”

All-Inorganic Ruddlesden–Popper Perovskite Cs2CdCl4:Mn for Low-Dose and Flexible X-ray Imaging

“…Previous studies have shown that fully attaching flexible scintillators to imaging objects is an effective approach. This method not only addresses the mentioned issues but also represents one of the advantages of flexible X-ray imaging . Moreover, compared with the rigid screen, such flexible screens also can alleviate vignetting problems which result from the uneven spatial distribution of X-ray dose generated by the point X-ray source .…”