When people go to the hospital for an X-ray, they always want to minimize the harmful radiation from the X-ray to themselves. Recently, Prof. Wei huang of northwestern polytechnic university, together with Prof. Xiaogang liu of the national university of Singapore and Prof. Huang hao Yang of fuzhou university have made great progress in X-ray scintillator research. They found a class of all-inorganic perovskite nanocrystalline scintillators that can be tuned in visible light. Compared with the traditional scintillators, this new type of scintillator has a very efficient radioluminescence response to X-ray, which not only realizes color radioluminescence display, but also proves the application of the nanomaterial in ultra-sensitive X-ray detection and high-resolution X-ray imaging technology. The original work was published online August 27 in nature.
The researchers used perovskite nanocrystalline scintillators to create flexible and highly sensitive X-ray detectors with a detection limit as low as 1/400 of the radiation dose of normal medical imaging. In other words, this detector can detect 1/400 of the radiation dose to human body after the hospital takes the film, which greatly reduces the harmful radiation to human body in every X-ray examination.