CT detector photodiode having multiple charge storage devices

X-ray or gamma ray systems or devices – Specific application – Computerized tomography

Reexamination Certificate

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Details

C378S098800, C250S370090, C250S370110

Reexamination Certificate

active

11780972

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.

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patent: 7170041 (2007-01-01), Rahn
patent: 7201053 (2007-04-01), Yoshioka et al.
patent: 2004/0013232 (2004-01-01), Rahn
patent: 2004/0251421 (2004-12-01), Kobayashi et al.

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