Patent ID: 6326135
Filing Date: 2001-12-04
Classification: G03C,Y10S

Abstract:
A method of formation of an industrial radiographic image comprising the steps of (i) exposing a non-spectrally sensitized industrial radiographic product containing at least 50 mg of silver/dm.sup.2 to ionizing radiation of energy equal to at least 40 keV to form a latent image, said product comprising a support covered on at least one of its faces with a layer of radiation-sensitive silver halide emulsion in which at least 50% of the grain are tabular and at least 0.05 mmole/silver mole of a compound of formula ##STR4##wherein R.sup.1 and R.sup.2 are each independently an atom of hydrogen, an alkyl group comprising from 1 to 5 atoms of carbon, substituted or not, a hydroxyl group, or a benzyl group; R.sup.3 and R.sup.4 are each independently a hydrogen, or an alkyl group from 1 to 5 atoms of carbon, or jointly comprise the atoms necessary to form a heterocycle of 4 to 6 atoms, substituted or not, and (ii) developing the exposed product to form a radiographic silver image.