Image sensor with reduced sensitivity to gamma rays

Details Image sensor with reduced sensitivity to gamma rays Image sensor with reduced sensitivity to gamma rays

2007-02-06

2007-02-06

Crane, Sara (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Charge transfer device

C257S223000, C257S228000, C257S231000

Reexamination Certificate

active

11005515

ABSTRACT:
The CCD image sensor addresses the problem of noise, due to background charge generated by Compton scattering of gamma rays. In applications, in which an imager must operate in a high-radiation environment, such background noise reduces the video signal
oise. This imager reduces the amount of charge collected from Compton events, while giving up very little sensitivity to photons in the visible
ear IR.

REFERENCES:
patent: 5270558 (1993-12-01), Reich et al.
patent: 5693968 (1997-12-01), Cherry et al.
patent: 5880777 (1999-03-01), Savoye et al.
patent: 7091530 (2006-08-01), Reich et al.

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