METHOD AND APPARATUS TO REDUCE CHARGE SHARING IN PIXELLATED ENERGY DISCRIMINATING DETECTORS

摘要

PROBLEM TO BE SOLVED: To design an apparatus for computerized tomography (CT) capable of reducing charge sharing between pixels of a direct conversion detector, and a device therefor. SOLUTION: A CT detector includes a plurality of metallized anodes (102) with each metallized anode separated from another metallized anode (102) by a gap (125). A direct conversion material (101) is electrically coupled to the plurality of metallized anodes (102) and has a charge sharing region (124) in which an electrical charge generated by an X-ray impinging the direct conversion material (101) is shared by at least two of the plurality of metallized anodes (102). An X-ray attenuating material (110) is positioned to attenuate X rays directed toward the charge sharing region (124). COPYRIGHT: (C)2008,JPO&INPIT