Two-dimensional radiation detector

Details Two-dimensional radiation detector Two-dimensional radiation detector

2006-07-11

2006-07-11

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

07075088

ABSTRACT:
A radiation detector is provided that has no fluctuations in detection sensitivity and is capable of suppressing the influence of the noise emitted from a light source. In the radiation detector in the present invention, a light emitting unit applies light to the end face of a flat light guide. On receiving the light, the flat light guide emits flat light from its surface toward an active matrix substrate. The light is led to a semiconductor thick film after passing through the active matrix substrate. The noise emitted from the light emitting unit to the active matrix substrate or the semiconductor thick film can be blocked by an electromagnetic shield. An incident radiation to the semiconductor thick film in this condition can be detected while the effect of the noise emitted from the light emitting unit is suppressed, and fluctuations in radiation sensitivity do not occur.

REFERENCES:
patent: 5451794 (1995-09-01), McKeown et al.
patent: 6376857 (2002-04-01), Imai
patent: 6442043 (2002-08-01), Seki et al.
patent: 6667480 (2003-12-01), Kajiwara et al.
patent: 6989539 (2006-01-01), Wischmann et al.
patent: 2004/0079891 (2004-04-01), Sato et al.
patent: 2004/0183025 (2004-09-01), Sato
Patent Abstracts of Japan for JP2003-058487 published Feb. 28, 2003.

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