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First 'perovskite camera' can see inside the human body
Scientists led by Northwestern University and Soochow University in China have built the first perovskite-based detector that can capture individual gamma rays for SPECT imaging with record-breaking precision. The new tool could make common types of nuclear medicine imaging sharper, faster, cheaper and safer.
This breakthrough, enabled by his group’s growth of high-quality single crystals, sparked a worldwide surge of research and effectively launched a new field in hard radiation detection materials. “By combining high-quality perovskite crystals with a carefully optimized pixelated detector and multi-channel readout system, we were able to achieve record-breaking energy resolution and imaging capabilities. It also sensed extremely faint signals from a medical radiotracer (technetium-99m) commonly used in clinical practice and distinguished incredibly fine features, producing crisp images that could separate tiny radioactive sources spaced just a few millimeters apart.
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