Radiographic phosphor panel having reflective polymeric supports
AssigneeEastman Kodak Company
InventorsPeter T. Aylward, David J. Steklenski, James F. Elman
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Abstract
A radiographic phosphor panel includes a phosphor layer that transmits actinic radiation in a range that is reflected by a transparent, polymeric multi-layer reflector used as a support. The polymeric multi-layer reflector has numerous alternating layers of at least two different polymeric materials and reflects at least 50% of actinic radiation in the range of wavelengths to which the phosphor is sensitive. The use of this polymeric multi-layer reflector in the radiographic phosphor panel provides increased photographic speed when it is used in imaging assemblies with photosensitive recording materials such as radiographic silver halide films.
Claims31
A radiographic phosphor panel comprising a polymeric multi-layer reflector and a phosphor layer disposed on said polymeric multi-layer reflector, wherein said polymeric multi-layer reflector comprises alternating layers of polymer that have different indices of refraction.
A radiographic imaging assembly comprising at least one radiographic phosphor panel comprising a polymeric multi-layer reflector and a phosphor layer disposed on said polymeric multi-layer reflector, wherein said polymeric multi-layer reflector comprises alternating layers of polymer that have different indices of refraction, and wherein said at least one radiographic phosphor panel being arranged in association with a photosensitive recording material.
Method of producing a radiographic phosphor panel comprising a supported layer of phosphor particles dispersed in a binder and a protective coating thereover wherein said binder consists essentially of one or more rubbery and/or elastomeric polymers and wherein said panel is prepared by dispersing phosphor particles in a binding medium consisting essentially of said one or more rubbery and/or elastomeric polymers, coating said dispersed phosphor particles so as to form a phosphor layer on a polymeric multi-layer reflector in a manner so as to form a phosphor layer without compressing the resulting dried phosphor layer and coating a protective coating thereover, wherein said polymeric multi-layer reflector comprises alternating layers of polymer that have different indices of refraction.
Dependencies are inferred from the claim text.