Patent ID: 6172371
Filing Date: 2001-01-09
Classification: G01T

Abstract:
A robust solid state radiation imager assembly comprising:a photosensor array disposed on a substrate;a scintillator having a first surface and a second surface, said scintillator being disposed over said photosensor array such that the scintillator first surface is optically coupled to said photosensor array; anda robust protective cover disposed over the scintillator second surface to seal said scintillator second surface from exposure to moisture present in the ambient environment;said protective cover having a three panel laminate structure comprising a pair of first-type material panels and a second-type material panel that are laminated together such that said second type material panel is disposed between said pair of first type material panels in said three panel laminate structure;said first type material panels and said second type material panels each being selected from the group consisting of a hermetic barrier layer comprising an inorganic material and a structural layer;said first-type material panels and said second-type material panels comprising materials that are different than one another;said structural layer comprising a composite material;each of said structural layers exhibiting a coefficient of expansion that is within about 20% to about 500% of the coefficient of expansion of said substrate.