Agfa Gevaert Nv

Romain H Bollen

Peter M Willems

Freddy Henderickx

Raymond L Florens

Gino L De Rycke

Marcel K Van Doorselaer

Jozef Eduard Marien

Valentin G Wissels

A method for representing radiological images on a recording medium comprising an image recording layer and an opaque reflecting support is provided comprising the steps of:

Method for providing hard copies of radiological images

The preparation of x-ray materials, especially suitable for non-destructive testing applications, is described. The emulsion layers of said material are comprising silver halide emulsion grains containing at least 75 mole % of silver chloride and less than 25 mole % of silver bromide and are characterized by a ratio between the amount of gelatin and the amount of silver halide, being expressed as the equivalent amount of silver nitrate, of less than 0.6. Hardening of said material is performed in such a way that the amount of demineralized water of 25.degree. C. absorbed in 3 minutes is less than 2.5 g per gram of gelatin present in said material. A rapid processing system is available with a total processing time of less than 3 minutes with a developer and fixer being substantially free from hardening agents and the fixer being substantially free from ammonium ions.

X-ray silver halide photographic material suitable for rapid processing

A process for the production of multiple radiographic images in which a corresponding number of photosensitive layers is exposed in a single shot to penetrating radiation and to photons emitted by fluorescent material sensitive to such penetrating radiation, characterized in that during such exposure each said photosensitive layer is located between a layer of said fluorescent material and a visible light reflecting layer which comprises white pigment particles and has a diffuse white light reflection density of less than 0.30.

Process for the production of multiple radiographic images

An electrostatic holder suitable for electrostatically adhering thereto paper and developed silver halide emulsion films, wherein said holder comprises in the following order:

Electrostatic holder

A photographic material suited for forming color radiographs, which material comprises on both sides of a film support at least one silver halide emulsion layer incorporating at least one color coupler that is capable of forming with an oxidized p-phenylenediamine type color developing agent a dye, said color coupler(s) being present in an amount sufficient to allow by exposure and color development with a p-phenylene diamine type developing agent to obtain a spectral density in the material of at least 2.0 with respect to visual filter light, the aggregate amount of silver halide in said material being equivalent to an amount of silver nitrate in the range of 5 g to 1.3 g of silver nitrate per sq.m, the silver halide grain size distribution being such that at least 50% by weight of the silver halide at both sides of the support has a mean grain size smaller than 0.55 .mu.m.

Growing community of inventors

Sint-Truiden, Belgium

Romain H Bollen