Patent ID: 6117626
Filing Date: 2000-09-12
Classification: G03C,Y10S

Abstract:
A photographic silver halide photosensitive material comprising at least two photosensitive emulsion layers only on one side of a support and adapted for use in photographing soft tissue using low-energy X-rays radiated at a tube voltage of less than 40 kVp, whereinsaid at least two photosensitive emulsion layers are formed of silver halide emulsions having different sensitivities,the sensitivity of the photosensitive emulsion of an uppermost layer is lower than that of a lower layer,said at least two photosensitive emulsion layers are each formed of a silver halide emulsion having an iodide content of less than 0.9 mol % based on the moles of silver, andsaid silver halide photosensitive material exhibits a contrast of 3.7 to 4.8 as determined by processing the material by Developing Process (1),Developing Process (1) being development at a temperature of 35.degree. C. for a time of 25 seconds with a developer (G) of the following composition: potassium hydroxide 21 g potassium sulfite 63 g boric acid 10 g hydroquinone 25 g triethylene glycol 20 g 5-nitroindazole 0.2 g glacial acetic acid 10 g 1-phenyl-3-pyrazolidone 1.2 g 5-methylbenzotriazole 0.05 g glutaraldehyde 5 g potassium bromide 4 g  the developer (G) being diluted with water to a total volume of 1 liter and adjusted to pH 10.2.