CT detector photodiode having multiple charge storage devices

Details CT detector photodiode having multiple charge storage devices CT detector photodiode having multiple charge storage devices

2007-10-16

2007-10-16

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S098800, C250S370090, C250S370110

Reexamination Certificate

active

11164101

ABSTRACT:
A CT detector includes a pixel having a single photodiode and multiple charge storage devices that are alternately stored and read out. The photodiode is a frontlit diode with a pair of capacitors that alternately store charge generated during data acquisition. Multiple pixels are connected to a single readout amplifier. Charge is continuously acquired from each photodiode and stored on the charge storage devices, but such readout is from a single charge storage device at a time. As such, each charge storage device is read out independently, but the charge storage devices are connected to a common readout channel or port.

REFERENCES:
patent: 5218533 (1993-06-01), Schanen
patent: 5592523 (1997-01-01), Tuy et al.
patent: 5661309 (1997-08-01), Jeromin et al.
patent: 2004/0013232 (2004-01-01), Rahn
patent: 2004/0251421 (2004-12-01), Kobayashi et al.

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