CT detector array having non-pixelated scintillator array

Details CT detector array having non-pixelated scintillator array CT detector array having non-pixelated scintillator array

2007-05-29

2007-05-29

Ho, Allen C. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C250S367000, C250S370090, C250S370110, C252S30140R

Reexamination Certificate

active

11029612

ABSTRACT:
The present invention is a directed to a non-pixelated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator array and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

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Valery I. Chani et al., Melt Growth of (Tb,Lu)3 Al5 O12 Mixed Garnet Fiber Crystals, Journal of Crystal Growth, 2000, pp. 469-475, vol. 212, Publisher: Elsevier Science B.V., Published in: US.

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