Accession Number:

ADD009555

Title:

Photographic Image Enhancement by a Gold-Toning Neutron-Activation Process.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1982-04-06

Pagination or Media Count:

4.0

Abstract:

This document describes a gold-toning neutron-activation process for intensifying or amplifying the contrast in extremely weak images in photographic negatives where the exposure level may be as low as 1.5 of optimum. The method involves three main steps gold toning of the silver image on the negative neutron activation of the gold image to produce radioisotopes and transfering the image to an unexposed autoradiogrpahic film as the ionizing radiation from the radioactive gold exposes the film to produce intensification of the contrast. Author

Subject Categories:

  • Printing and Graphic Arts

Distribution Statement:

APPROVED FOR PUBLIC RELEASE