Method of reducing recovery time in an x-ray detector

Details Method of reducing recovery time in an x-ray detector Method of reducing recovery time in an x-ray detector

2006-01-24

2006-01-24

Porta, David (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C250S370110, C378S098800

Reexamination Certificate

active

06989538

ABSTRACT:
A method of maintaining an initial bias of an x-ray detector (12) includes setting the initial bias of the x-ray detector. Operating state of a readout circuit (30) is altered. A photodiode common contact voltage potential is adjusted by a data line drift amount to approximately maintain the initial bias. An x-ray imaging system (10) includes a detector (12) that has multiple pixels, multiple data lines (50), and a common contact (62) that is at a common contact voltage potential. The readout circuit (30) is electrically coupled to the data lines (50) and has a multiple power states. A controller (36) is electrically coupled to the readout circuit (30), detects a change in operating state of the readout circuit (30), and adjusts voltage potential of the common contact (62) in response to the change in operating state.

REFERENCES:
patent: 5920070 (1999-07-01), Petrick et al.
patent: 6266391 (2001-07-01), Albagli
patent: 6399950 (2002-06-01), Kimura et al.
patent: 6696687 (2004-02-01), Tomisaki et al.
patent: 6714623 (2004-03-01), Sako et al.

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