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2w ago

First Perovskite Gamma-Ray Detector Achieves Record Single-Photon SPECT Imaging

A Northwestern–Soochow prototype points to a cheaper, more sensitive alternative to current detectors, with a university spinout moving it toward clinical use.

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Perovskite Camera That Can Detect Individual Gamma Rays Reveals The Human Body From The Inside

Overview

  • The pixelated perovskite sensor delivered the best-reported energy resolution for SPECT and captured individual gamma rays in laboratory tests.
  • Experiments resolved tiny radioactive sources spaced a few millimeters apart and detected faint technetium-99m signals with high stability.
  • The work, published Aug. 30 in Nature Communications, builds on a decade of perovskite crystal advances led by Mercouri Kanatzidis.
  • Perovskite detectors are presented as easier to grow and potentially far less expensive than CZT while offering sharper imaging than NaI systems.
  • Northwestern spinout Actinia Inc. is commercializing the technology with medical-device partners to scale production and integrate it into hospital platforms.