Accession Number : ADD005842

Title :   Photographic Image Enhancement by Photofission.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Murray,Kenneth M

Report Date : 30 Jan 1979

Pagination or Media Count : 4

Abstract : This patent discloses a method for producing a replica image with enhanced contrast from an original photographic image comprising toning the original photographic negative with a stable photofissionable isotope material, placing the toned negative in contract with a replication plate made from a transparent material in which damage tracks left by fission fragments may be made visible by some process such as etching, irradiating the toned negative with high-energy X-rays, and etching the replication plate to render the damage tracks visible and thereby produce the replica image. (Author)

Descriptors :   *Patents, *Photographic images, *Reproduction(Copying), *Photochemical reactions, *Radioactive isotopes, Replicas, Contrast media(Medicine), Photographic negatives, Fissionable materials, Transparencies, Etching, X rays

Subject Categories : Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE