Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1991-08-29
1992-07-21
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250366, 250368, 25037011, G01T 120
Patent
active
051325390
ABSTRACT:
A radiation imager comprises a scintillator mated to a photodetector array. An enclosure ring is disposed around the outer sidewalls of the scintillator and an enclosure ring cover hermetically bonded to the ring extends across the scintillator to form a chamber sealably enclosing the scintillator. The enclosure ring cover is substantially impervious to moisture, is radiation transmissive, and minimizes scattering of light from the scintillator. The cover may be optically reflective or light absorptive. The chamber is evacuated to draw the cover in towards the photodetector array and thus to ensure close contact between the cover and the scintillator and between the scintillator and the photodetector array. Desiccant can be disposed in the chamber to provide additional protection against moisture absorption by the scintillator.
Castleberry Donald E.
Kwasnick Robert F.
Davis Jr. James C.
Fields Carolyn E.
General Electric Company
Ingraham Donald S.
Snyder Marvin
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