2-11 Dual X-ray CT Imaging by Polychromatic X-ray and Energy Discriminative Photon Counting Detector

Abstract

To improve the precision of the material identification by Dual X-ray CT with polychromatic X-ray and energy discriminative detector, it is needed to acquire the energetic distribution of CT value accurately. Using sinograms and CT values from different energy by energy discriminative detection, a method to remove beam hardening error was examined.