Means for assuring proper orientation of the film in an asymmetr

Details Means for assuring proper orientation of the film in an asymmetr Means for assuring proper orientation of the film in an asymmetr

1992-02-03

1993-10-12

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430508, 430509, 430513, 430522, 430606, 430139, 430966, G03C 146

Patent

active

052524434

ABSTRACT:
An asymmetrical radiographic element is disclosed comprised of a transparent film support, green sensitized silver halide emulsion layer units of differing sensitometric characteristics coated on opposite sides of the film support, and a processing solution decolorizable means for reducing crossover to less than 10 percent. The element is positioned between intensifying screens and mounted in a cassette for exposure to X-radiation. A processing solution decolorizable pentamethineoxonol dye with insignificant absorption at 550 nm is incorporated into an overcoat layer to distinguish which of the emulsion layer units is positioned nearest a source of X-radiation during exposure.

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