Multienergy x-ray imaging enabled by unipolar perovskite detector for intelligent substance identification.

ABSTRACT: A challenge with state-of-the-art projection x-ray imaging technologies is their limited ability to identify unknown substances. Here, we develop an intelligent multienergy x-ray imaging technique capable of precisely distinguishing different substances and labeling them with diverse colors. Our design uses a series of x-ray attenuation coefficient ratios under different x-ray energies as substance-specific markers. For this purpose, unipolar perovskite x-ray detectors are carefully engineered to resolve the x-ray energies into seven channels using a customized algorithm. Combining machine learning and a comprehensive x-ray attenuation ratio database of common materials enables accurate recognition of low-density biological tissues composed of light elements with similar atomic numbers. By

SUBMITTER: Li Y 

PROVIDER: S-EPMC12758516 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature