FIELD: physics.
SUBSTANCE: computer tomography system includes an X-ray source (108) which rotates around the viewed region (116) and directs X-rays through the viewed region (116). At least one detector (112) with finite energy resolution detects the directed X-rays. At least one detector (112) with finite energy resolution includes a plurality of subdetectors (204). Each of the plurality of subdetectors (204) is associated with one or more different energy thresholds. Each of the energy thresholds is used to count the number of incident photons based on the corresponding energy level. The reconstruction system (136) reconstructs photon counts in order to form one or more images of the object located in the viewed region (116).
EFFECT: improved image reconstruction.
19 cl, 3 dwg
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| SPECTRAL IMAGES FORMATION | 2013 |
|
RU2597073C2 |
