“In the field of X-ray imaging, new progress has been made in the research of lead halide perovskite scintillators. Through simulation experiments, it was found that increasing the thickness of composite scintillators and the proportion of perovskite quantum dots can improve detection efficiency, while reducing the thickness and increasing the proportion of quantum dots can improve spatial resolution. Under 20 keV X-ray excitation, the spatial resolution of perovskite scintillators is comparable to that of commercial CsI scintillators, providing a new option for low-energy X-ray medical imaging.”