MULTI-POWER X-RAY EXAMINATION METHOD Russian patent published in 2021 - IPC G01N23/04 

FIELD: physics.

SUBSTANCE: invention can be used for multi-energy X-ray analysis. Essence of the invention consists in the fact that the patient is irradiated with X-rays as a result of the supply of a sequence of voltage pulses of different values to the X-ray radiation source, obtaining the corresponding sequence of the original X-ray images and based on the sequence of separate images of tissues, having different coefficients of linear attenuation. X-ray source is fed with a sequence of N ≥ 3 voltage pulses, voltage values U of which for any n = 1…N satisfy condition: if U_n + 1 > U_n, then U_n + 2 < U_n + 1, if U_n +1 < U_n, then U_n+2 > U_n+1. After each next initial image is obtained, starting from the second one, before constructing separate images of tissues having different coefficients of linear attenuation, combining the next (n + 1)^th original image with the previous n^th source image by correcting one of them.

EFFECT: technical result is enabling reduction of motion artefacts on obtained separate images.

5 cl