Computed tomography system with correction for z-axis detector n

X-ray or gamma ray systems or devices – Specific application – Computerized tomography

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378901, 378 15, A61B 603, G01N 23083

Patent

active

054736560

ABSTRACT:
An x-ray CT scanner acquires projection profiles P during a scan which are corrected for errors caused by non-uniform response of the detectors along the z-axis. In addition to corrections using a calibration vector Q that offsets errors caused by variations in the detector response, additional corrections are made to offset object dependent errors caused by the same variations in detector response when imaging certain objects.

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patent: 5224136 (1993-06-01), Toth et al.
patent: 5301108 (1994-04-01), Hsieh
patent: 5416815 (1995-05-01), Hsieh

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