INSPECTION INSTALLATION AND METHOD FOR RECOGNIZING THE MATERIAL COMPOSITION OF THE INSPECTED OBJECT Russian patent published in 2023 - IPC G01N23/203 

FIELD: hidden objects detection.

SUBSTANCE: invention is intended to detect objects hidden behind an optically opaque barrier. The substance of the invention lies in the fact that the inspection unit contains an x-ray source with a mechanical device for scanning an object with a narrow beam of this radiation, a processor device, a device for displaying an x-ray image and a backscattered radiation registration system located next to the source, consisting of an array of detectors, with each of the elements The array of detectors is designed as a scintillation energy spectrometer with an energy resolution of at least 20% along the 122 keV line of the Co⁵⁷ radioisotope source with an X-ray detection efficiency of at least 80% in the energy range of 30-150 keV and contains a NaI(Tl) scintillation detector, a photodetector, an electronic path , an amplitude analyzer that converts a sequence of scintillation signals into a sequence of digital codes, and an interface that ensures the transfer of digital codes from each of the elements of the array to the processor device synchronously with the by measuring the pixels of the radiographic image in the process of scanning the surface of the inspected object with a probing X-ray beam.

EFFECT: increasing the information content of the radiographic image, as well as a significant expansion of functionality, allowing, along with obtaining an x-ray image of the inspected object, to identify and display its material composition in the form of a specific image.

5 cl, 5 dwg, 2 tbl