High energy scans or the body looking for tumors or infections could be greatly improved by adopting perovskite detectors instead of the fragile or low-resolution options currently in use, a new study reports. A short-lived gamma ray source is placed inside the body, and the rays emitted are captured by detectors. In the process, Kanatzidis’s team developed skills in producing perovskite crystals with few flaws or impurities. Professor Yihui He of Soochow University and colleagues combined Kanatzidis’ crystals to create a pixelated gamma-ray sensor. In particular, the capacity to distinguish between gamma rays of different energies allows for more advanced 3D organ reconstruction.