CT detector array with uniform cross-talk

Details CT detector array with uniform cross-talk CT detector array with uniform cross-talk

2005-02-22

2005-02-22

Church, Craig E. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C250S370110

Reexamination Certificate

active

06859514

ABSTRACT:
The present invention is directed to a CT detector array having uniform cross-talk. Discontinuities in cross-talk between adjacent CT detectors of a CT detector array are minimized by increasing the cross-talk at the boundaries of adjacent CT detectors. Discontinuities throughout a CT detector contribute to artifact presence in a final reconstructed image, therefore, it is preferred that cross-talk throughout the CT detector array be relatively uniform. Reducing the width of reflector material between adjacent CT detectors increases the cross-talk between the CT detectors. This increase in cross-talk offsets the reduced cross-talk that typically occurs between scintillators, optical epoxy layers, and photodiodes at the CT detector interface. Cross-talk may also be increased by reducing the amount of chrome deposited in the reflector between CT detectors or reducing the levels of titanium oxide typically used in reflector layers.

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