X-RAY INTENSIFYING SCREENS INCLUDING MICRO-PRISM REFLECTIVE LAYER FOR EXPOSING X-RAY FILM, X-RAY FILM CASSETTES, AND X-RAY FILM ASSEMBLIES

摘要

An intensifying screen for exposing X-ray film includes a screen support backing, a luminescent layer having a luminescent material that emits light in the presence of X-rays, and a reflective layer disposed between the luminescent layer and the screen support backing, the reflective layer including a plurality of micro-prisms that reflect light emitted by the luminescent material. An X-ray film cassette includes at least one intensifying screen and a housing surrounding the at least one intensifying screen.

主权项

1. An intensifying screen for exposing X-ray film, the intensifying screen comprising:
a screen support backing; a luminescent layer including a luminescent material that emits light in the presence of X-rays; a reflective layer disposed between the luminescent layer and the screen support backing, the reflective layer including a plurality of micro-prisms that reflect light emitted by the luminescent material, wherein micro-prism surfaces of the plurality of micro-prisms do not reflect light that impinges on the respective micro-prism surfaces at an angle exceeding a critical angle as measured from the respective micro-prism surfaces.