Radiographic imaging system and silver halide photographic material
AssigneeKonica Corporation
InventorMasaaki Taguchi
Life of this patent
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Abstract
An radiographic imaging system for making a radiograph by a radiography apparatus using a photographic combination of a silver halide photographic light sensitive material in combination with intensifying screens, the photographic material comprising a support having a light sensitive silver halide emulsion layer on each both sides of the support, wherein the radiography apparatus conducts making a radiograph under the condition that a distance between a focal point of an X-ray tube and the photographic material is 0.9 to 3.0 m, a distance between the focal point of the X-ray tube and an object is 0.5 to 2.7 m and a distance between the object and the photographic combination is 0.3 to 1.5 m.
Claims14
A radiographic imaging method for making a radiograph with a radiography apparatus comprising:
- combining a silver halide photographic light-sensitive material with an intensifying screen to make a photographic combination, the photographic material comprising a support having a light-sensitive silver halide emulsion layer on each of both sides of the support;
- exposing the photographic combination to an X-ray from an X-ray tube of the radiographic apparatus to make an exposed photographic material wherein a distance between a focal point of an X-ray tube and the photographic material is 0.9 to 3.0 m, a distance between the focal point of the X-ray tube and an object is 0.5 to 2.7 m, a distance between the object and the photographic combination is 0.3 to 1.5 m and wherein the X-ray tube is operated at a tube voltage of 15 to 150 kVp;
- and
- processing the exposed photographic material to make the radiograph.
A radiographic imaging method for making a radiograph with a radiography apparatus comprising:
- combining a silver halide photographic light-sensitive material with an intensifying screen to form a photographic combination for making a radiograph with the radiography apparatus, wherein the photographic material comprises a support having a light-sensitive silver halide emulsion layer on each of both sides of the support, the photographic material exhibiting a crossover of not more than 15% and an average contrast of not less than 3.4 when the photographic combination is exposed to X-ray and the photographic material is subjected to processing (A);
- exposing the photographic combination to an X-ray from an X-ray tube of the radiographic apparatus to make an exposed photographic material wherein a distance between a focal point of an X-ray tube and the photographic material is 0.9 to 3.0 m, a distance between the focal point of the X-ray tube and an object is 0.5 to 2.7 m and a distance between the object and the photographic combination is 0.3 to 1.5 m;
- processing the exposed photographic material by processing (A) wherein processing (A) is conducted using a roller transport type automatic processor and the following developer solution (D) and fixed solution (F) at a developing temperature of 35° C. for a developing time of 24 to 28 sec. and at a fixing temperature of 33° C. for a fixing time of 15 to 25 sec.:
- Developer solution D Water 800 ml Potassium hydroxide 22 g Potassium sulfite 65 g Hydroquinone 27 g Triethylene glycol 20 g 5-nitroindazole 0.2 g Acetic acid (56% aqueous solution) 19 g 1-Phenyl-3-pyrazolidone 1.1 g 5-Methylbenzotriazole 0.05 g Glutar aldehyde sodium busulfite adduct 4.0 g Potassium bromide 4.0 g Water to make 1 liter pH 10.25 Fixer solution F Water 30 ml Ammonium thiosulfate (70% weight/volume) 200 ml Sodium sulfite 14 g Gluconic acid 7 g Sodium acetate trihydrate 25 g Disodium ethylenediaminetetraacetate 0.1 g dihydrate Aluminum sulfate 16 g Sulfuric acid 3 g Water to make 1 liter pH 4.55.
Dependencies are inferred from the claim text.