High sensitivity organic inorganic hybrid X-ray detectors with direct transduction and broadband response.

ABSTRACT: X-ray detectors are critical to healthcare diagnostics, cancer therapy and homeland security, with many potential uses limited by system cost and/or detector dimensions. Current X-ray detector sensitivities are limited by the bulk X-ray attenuation of the materials and consequently necessitate thick crystals (~1 mm-1 cm), resulting in rigid structures, high operational voltages and high cost. Here we present a disruptive, flexible, low cost, broadband, and high sensitivity direct X-ray transduction technology produced by embedding high atomic number bismuth oxide nanoparticles in an organic bulk heterojunction. These hybrid detectors demonstrate sensitivities of 1712 µC mGy^-1 cm^-3 for "soft" X-rays and ~30 and 58 µC mGy^-1 cm^-3 under 6 and 15 MV "

SUBMITTER: Thirimanne HM 

PROVIDER: S-EPMC6062530 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature