RADIOGRAPHIC IMAGING APPARATUS AND METHODS FOR OPERATING SUCH APPARATUS

Radiographic imaging apparatus and methods for operating such apparatus, such apparatus being adapted to provide energy aberration correction, nonlinearity correction, and uniformity correction. The apparatus includes an energy filter which accepts or rejects a detected event for further processing and imaging. An accepted event has position data corrected for linearity by a linearity corrector. The linearity corrected position data is used if, and only if, certain uniformity criteria are complied with as determined by a uniformity correction process. The uniformity corrector operates concurrently with the linearity corrector by responding to nonlinearity corrected position data of events accepted by the energy filter.