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Amorphous silicon active pixel sensor readout circuit for digital imaging.

The most widely used architecture in large-area amorphous silicon (a-Si) flat panel imagers is a passive pixel sensor (PPS), which consists of a detector and a readout switch. While the PPS has the advantage of being compact and amenable toward high-resolution imaging, reading small PPS output signa...

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Pubblicato in:IEEE Transactions on electron devices 50, 1 (2003).
Autore principale: Karim, K.S
Natura: Articolo
Lingua:inglese
Soggetti:
Si.
Amorphous Si active pixel sensor.
Circuit noise.
Current-mediated active pixel readout circuit.
Digital fluoroscopy.
Integrated pixel amplifier circuit.
Large-area flat panel imagers.
Medical diagnostic imaging applications.
Noise-vulnerable sensor input signals.
On-pixel amplification.
Programmable charge gain.
Small-signal linearity.
Threshold voltage shift immunity.