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AssigneeUniversite De La Mediterranee Aix-Marseille II
InventorsChristian Morel, Franck Debarieux, Pierre Delpierre, Christophe Meessen
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An X-ray imaging device includes a polychromatic X-ray source (10) and a detector (1, 2) having pixels suitable for operating in photon counting mode within at least one energy window bounded by at least one adjustable threshold, and at least one counter so that each pixel delivers an output dependent on the number of photons received by the pixel in the energy windows during a predetermined time interval. This device includes adjustment element (12) capable of adjusting, in real time, the thresholds of the pixels in succession in various energy windows, and processing element (16) for carrying out, in real time, differential processing of the outputs of the pixels in the various energy windows.
1-7. (canceled)
X-ray imaging device comprising a polychromatic X-ray source (10) and a detector (1, 2) having pixels adapted to operate in photon counting mode in at least one energy window delimited by at least one adjustable threshold, and at least one counter, so that each pixel delivers an output dependent on the number of photons received by said pixel in said energy windows during a predetermined time interval, characterized in that it comprises adjustment means (12) capable of adjusting, in real time, the thresholds of said pixels in succession in different energy windows, and processing means (16) for carrying out, in real time, differential processing of the outputs of said pixels in said different energy windows and in which the adjustment means are arranged to adjust the thresholds of said pixels, in real time, to different values in an adaptive manner in dependence on a predetermined criterion, the processing means being arranged to process the outputs of said pixels according to a temporal arrangement.
Dependencies are inferred from the claim text.