Abstract: The present invention provides a photothermographic material including a support having disposed on one surface thereof at least one image-forming layer containing a binder, an organic silver salt, a reducing agent for reducing silver ions, an organic polyhalogen compound and a photosensitive silver halide, wherein the photosensitive silver halide has a silver iodide content ranging from 10 mol % to 100 mol %. The silver halide further contains at least one metal selected from a first metal group and one metal selected from a second metal group, with a proviso that none of the at least one metal selected from the first metal group and the at least one metal selected from the second metal group are the same.

Abstract: A photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer which is disposed on the same side as the image forming layer and farther from the support than the image forming layer, wherein 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a silver iodide content of 40 mol % or higher and an aspect ratio of 2 or more, and the non-photosensitive layer comprises a second organic silver salt, and an image forming method using the same. The invention provides a photothermographic material and an image forming method excellent in image tone and image storability.

Abstract: A silver halide emulsion chemically sensitized by a compound of formula (1), (6-1), (6-2) or (7); and a silver halide photographic light-sensitive material containing the silver halide emulsion: Formula (1) E1-Ch-E2 Formula (6-1) W1 . . . AuX2m Formula (6-2) [W1 . . . Au . . . W2]X2m Formula (7) E5-Ch-Au . . . (L2)1 wherein Ch is a sulfur, selenium or tellurium atom; E1, E2, and E5 each are, for example, a specific methylene group having a substituent; Au is a monovalent or trivalent gold ion; W1 and W2 each are a specific chalcogen compound; X2 is a monovalent anion; m is 1, 2 or 3; L2 is a compound that can coordinate with gold through a nitrogen, sulfur, selenium, tellurium or phosphorous atom; and l is 0, 1, 2 or 3.

Abstract: A silver halide photographic emulsion, wherein 70% or more of the total projected area of silver halide grains is occupied by silver halide grains satisfying the following requirements (a) to (d). (a) It is composed of a tabular silver halide host grain with an aspect ratio of 12 or more having two mutually parallel principal planes and a silver halide protrusion portion bonded by epitaxial junction on the surface of the host grain. (b) The silver bromide content rates of the host grain and the protrusion portion both are 70 mol % or more. (c) When the average silver iodide content rate of all grains is I mol %, the average silver iodide content rate of the region of 8%, based on the silver amount of the host grain, of the outer shell of the host grain is (I+12) mol % or less.

Abstract: A silver halide color photographic light-sensitive material having, on a support, a yellow dye-forming light-sensitive silver halide emulsion layer, a magenta dye-forming light-sensitive silver halide emulsion layer and a cyan dye-forming light-sensitive silver halide emulsion layer, and a light-insensitive hydrophilic colloid layer that does not develop a color, wherein a total amount of a hydrophilic binder on the emulsion layer-coating side of the support is 6.0 g/m2 or less, and at least one of said silver halide emulsion layers contains at least one compound selected from metal complexes represented by formula (I) set forth below and a silver halide emulsion of a 90 mole % or more silver chloride content with a silver bromide-containing phase formed in a layer form.

Abstract: This invention provides a silver halide emulsion, a silver halide photographic material and an image forming method, which is excellent in high sensitivity, good gradation, coating composition store stability and latent image store stability regardless exposing method, particularly excellent latent image store stability at high intensity and shot period exposure of digital exposure, and by which a high quality print is obtained. The silver halide emulsion contains silver halide grains having silver chloride content of at least 90 mol %, silver iodide content of 0-2.0 mol %, and silver bromide content of 0.02-5.

Abstract: A radiographic material containing tabular silver halide grains also includes an amido compound as an antifoggant precursor that can slowly release an antifoggant over time. These compounds are present in reactive association with the silver halide in tabular silver halide emulsion layers, and are present in an amount of at least 0.5 mmol/mol of silver. The radiographic materials are protected from fog during storage particularly in high temperature environments.

Abstract: A silver halide photographic lightsensitive material comprising a support having thereon at least one lightsensitive silver halide emulsion layer, wherein the lightsensitive material contains at least one compound represented by general formula (I) and at least one photographically useful group-releasing compound represented by general formula (II) or (III) that is capable of forming a compound having substantially no contribution to a dye after its coupling with an oxidized form of a developing agent: (X)k-(L)m-(A-B)n ??(I) COUP1-D1 ??(II) COUP2-C-E-D2 ??(III) The definitions of the substituents are set forth in the specification.

Abstract: A high-sensitivity silver halide photographic light-sensitive material is provided, which is a silver halide photographic light-sensitive material, in which a dye chromophore is adsorbed in multiple layers on the surface of a silver halide grain and at least one of the dye chromophore-containing compounds satisfies: a specific condition relating to the aggregation property, hydrophilicity/hydrophobicity or J-aggregation property; or a specific structure.

Abstract: A silver halide photographic light-sensitive material having high sensitivity and having a desired spectral sensitivity distribution. A silver halide photographic light-sensitive material comprising at least one multichromophore dye compound having at least two dye chromophores connected by covalent bonding or coordinate bonding, at least two of the dye chromophores forming a dye chromophore group and the light absorption of the dye chromophore group differing from the sum of individual light absorptions of respective dye chromophores constituting said dye chromophore group.

Abstract: A silver halide photographic material, including a support having thereon a silver halide emulsion layer, the silver halide emulsion layer containing silver halide particles having a silver chloride content of more than or equal to 90 mol %, wherein a compound represented by Formula (S) is contained in the interior and on a surface of the silver halide particles and in a binder of the silver halide emulsion layer, and the silver halide particles have more than two silver halide phases therein having different concentration of the compound represented by Formula (S):

Abstract: A silver halide emulsion including silver halide grains and a binder and satisfying Requirement (1) of 0<B/A<0.2, wherein A (mol %) is an iridium content at a surface of the silver halide grains, and B (mol %) is an average iridium content at a subsurface of the silver halide grains.

Abstract: High-speed aqueous-based black-and-white photothermographic materials are imageable in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. They can have one or more thermally developable imaging layers on either or both sides of the support and can be imaged with or without a phosphor intensifying screen in an imaging assembly. The photothermographic emulsions and materials have a net Dmin less than 0.25, and require less than 1 erg/cm2 to achieve a density of 1.00 above net Dmin. The imaging layers include hydrophilic binders or water-dispersible latex polymer binders and chemically and spectrally sensitized photosensitive silver halide grains.

Abstract: A silver halide emulsion is disclosed, comprising silver halide grains, wherein at least 50% by number of the silver halide grains is accounted for by cubic grains having a chloride content of not less than 90 mol %, an iodide content of from 0 to 2 mol % and a bromide content of from 0.1 to 10 mol % and containing dislocation lines in the edge region or the corner region of the grains.

Abstract: A silver salt photo-thermal photographic dry imaging material comprising on a support a light-sensitive layer containing light-insensitive silver salt of aliphatic carboxylic acid particles, a light-sensitive emulsion having light-sensitive silver halide grains, a silver ion reducing agent and a binder. The light-sensitive emulsion contains silver halide particles having diameters of from 0.001 ?m to 0.050 ?m in the ratio of 50% or more by weight in terms of silver of the entire light-sensitive silver halide grains contained, and the number average particle diameter of the light-insensitive silver salt of aliphatic carboxylic acid is from 0.01 ?m to 0.60 ?m.

Abstract: A high silver iodide photographic emulsion is provides, which has a high sensitivity and a narrow size distribution, and is a photosensitive silver halide photographic emulsion having a silver iodide content of 90 mol % or more, wherein the average grain size (R) and the average crystallite size (r) of silver halide emulsion grains in the emulsion satisfy the relationship of 1?R/r<2.

Abstract: The present invention provides a silver halide color photographic photosensitive material including a substrate, and photographic constituent layers having at least one each of an yellow color-developing blue light-sensitive silver halide emulsion layer, a magenta color-developing green light-sensitive silver halide emulsion layer, a cyan color-developing red light-sensitive silver halide emulsion layer and a non-photosensitive hydrophilic colloid layer, wherein the at least one yellow color-developing blue light-sensitive silver halide emulsion layer includes a silver halide emulsion having a sphere-corresponding diameter of 0.7 ?m or less, and a silver chloride content of 90 mol % or higher, which silver halide emulsion has been subjected to selenium and gold sensitizations, and the total gelatin amount in the photographic constituent layers is from 3 to 6 g/m2, or the total silver coating amount in the photographic constituent layers is from 0.2 to 0.5 g/m2, and an image-forming method using the same.

Abstract: Disclosed is a silver halide color photographic lightsensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these layers comprising at least two silver halide emulsion layers with different photographic speeds, together with at least one antihalation layer, wherein couplers capable of color formation are contained in a total coating amount of 0.02 mmol/m2 to 2 mmol/m2.

Abstract: A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein R1 is —OR, —SR or —N—R(—R?), where R and R? are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R? may form a saturated carbon ring or a heterocycle; R2 and R3 are a hydrogen atom or an alkyl group; Y1 and Y2 are a polymethylene, arylene or cycloalkylene group; Z is —O—, —SO2— or —CH2—; and m is 0 or 1.

Abstract: A silver halide light sensitive photographic element comprising a support bearing at least one cyan image forming hydrophilic colloid layer comprising cyan image dye forming coupler of Formula I and a saturated alcoholic high boiling solvent or mixture of solvents of Formula II: Formula I wherein R1 is an alkyl group, R2 is a ballast group, and X is hydrogen or a coupling-off group; Formula II wherein R3 represents an alkyl group, and R4 and R5 individually represent hydrogen or an alkyl group, or R3 and R4 may be joined to form a cycloalkyl group, provided that the total number of carbon atoms contained in R3, R4, and R5 is at least 10 and that the alcoholic solvent or mixture of solvents of Formula II is liquid at 37° C.

Abstract: A silver halide emulsion containing a compound represented by the following formula (1) or (2): wherein R1 represents an OH group, an SH group, or an —NR2R3 group in which R2 and R3 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkylsulfonyl group, or an arylsulfonyl group; L represents an alkenylene group, an arylene group, an —N?N— group, a divalent aromatic heterocyclic group, or a —C(R4)?N— group in which R4 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; n represents 0 or 1; X and Y each independently represent a nitrogen atom or a —CR5— group in which R5 represents a hydrogen atom or a substituent bondable to the carbon atom; Z represents an atomic group in the 5- to 7-membered ring; and M represents a hydrogen atom, a metal ion, or a quaternary ammonium ion.

Abstract: The present invention provides a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic solvent salt, a reducing agent for a silver ion, and a binder on one face of a support, for being applied by using an organic solvent, the photothermographic material further comprising at least one compound selected from the group of compounds consisting of: a compound represented by the following general formula (1), a compound having a ?-lactam ring, a compound having a group that is adsorptive to a silver halide and a group that reduces a silver halide and a precursor thereof:

Abstract: A radiographic imaging assembly comprises a symmetric radiographic silver halide film has an overall system speed of at least 1100 to provide images with improved contrast and sharpness and reduced fog. The imaging assembly includes a symmetric radiographic film having a speed of at least 700 that includes at least two silver halide emulsions on each side of the support that comprise tabular silver halide grains. The emulsions closer to the support comprise a suitable crossover control agent. The imaging assembly also includes a pair of phosphor intensifying screens that have an average screen sharpness measurement (SSM) greater than reference Curve A of FIG. 4. The screens can have a support that includes a reflective substrate comprising a continuous polyester phase and microvoids containing inorganic particles dispersed within the polyester phase.

Abstract: In the apparatus for liquid preparation, the silver halide emulsion contained in a dedicated pot is transferred as liquid by a mohno pump via a piping into a measuring tank. The silver halide emulsion transferred into the measuring tank is measured with a load cell and is melted by heating with a jacket while being stirred by a stirrer. Accordingly, even when a small amount is used as in the case of the silver halide emulsion used in the heat-developable photosensitive material, the time for heating the silver halide emulsion, within the time range from the liquid preparation of the silver halide emulsion to its utilization, can be made short to the utmost, and hence the time elapse in melt can be suppressed. Thus, the time elapse in melt, reagent loss, and mutual contamination in the liquid preparation of photographic reagents can be effectively prevented.

Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.

Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998–1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscissa and b* is used as the coordinate of the CIE 1076 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5–5, and gradient (a*/b*) is 0.7–2.5.

Abstract: The present invention provides a silver halide color photographic photosensitive material that includes coupler-containing sensitive emulsion layer units on a support. Each of the photosensitive emulsion layer units are constituted of at least two photosensitive emulsion layers having sensitivities which are different from each other. An emulsion layer of the highest sensitivity among the at least two photosensitive emulsion layers contains at least one silver halide emulsion in which tabular silver halide grains with an average aspect ratio of 3 or more substantially including dislocation lines account for 50% or more of the total projected areas. Photosensitive emulsion layers other than the emulsion layer of the highest sensitivity consist of a silver halide emulsion containing silver halide grains that account for 70% or more of the total projected areas and include host grains that satisfy a specific aspect ratio condition and epitaxially joined protrusions.

Abstract: Provided are a photothermographic material which includes, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and is X-ray exposed with a fluorescent intensifying screen, wherein (1) the photosensitive silver halide includes tabular grains having a mean aspect ratio of 2 to 100 and a mean equivalent spherical diameter of 0.3 ?m to 10 ?m, (2) an exposure value necessary for obtaining an image density of fog+0.

Abstract: The invention provides a photothermographic material containing a tabular photosensitive silver halide having an average silver iodide content of 40 mol % or higher, 50% or more of a total projected area of the photosensitive silver halide being occupied by tabular grains having an aspect ratio of 2 or more, the photosensitive silver halide grains having a mean equivalent spherical diameter of from 0.2 ?m to 5 ?m and a variation coefficient of an equivalent spherical diameter distribution of 30% or less. Further, a method for preparing the photosensitive silver halide used in the photothermographic material is characterized in that grains are formed in the presence of at least one selected from a silver halide solvent and an amino group-modified gelatin. A high-sensitivity photothermographic material exhibiting a low fog and a high optical density is provided.

Abstract: A green-sensitized black-and-white silver halide negative working photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains, further comprising in said emulsion layer or in a layer adjacent thereto, a heteroatomic sulfinic acid compound, a disulfide compound or a combination thereof, wherein each of said compounds has a solubilizing group having a pKa-value of 10 or less.

Abstract: A photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and an X-ray image forming method using the same, wherein 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having an aspect ratio of 2 or more, and the grains have at least one epitaxial junction portion having a multifold structure. A photothermographic material with high sensitivity and excellent storage stability, and an image forming method using the material are provided.

Abstract: The invention provides a black and white photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, wherein 50% or more of the total projected area of the photosensitive silver halide grains is occupied by tabular grains having an aspect ratio of 2 or more, and at least one apex portion of each tabular grain has an epitaxial junction. An image forming method is also provided, the method including bringing the photothermographic material into close contact with a fluorescent intensifying screen containing a fluorescent substance, wherein 50% or more of emission light of the fluorescent substance has a wavelength of 350 nm to 420 nm, and applying X-ray exposure. The black and white photothermographic material has high sensitivity and is superior in image storability and raw stock storability.

Abstract: In a cellular phone terminal foldable by a hinge and including upper and lower split pieces, monopole antennas are formed on a flexible printed wiring board and a printed wiring board and a lower housing is formed with a finger grip portion such that not only deterioration of characteristics is prevented but the lower housing can be held easily.

Abstract: A silver halide emulsion comprises at least a dispersion medium, water and a silver halide grain, wherein grains occupying from 40 to 100% of the total projected area of said gains have an AgI content of 85 to 100 mol %, a single kind of outer shape except for size and the equivalent-circle projected diameter of from 0.002 to 20 ?m.

Abstract: A silver halide color photosensitive material of less than 320 ISO speed, comprising at least two red-sensitive emulsion layers, at least two green-sensitive emulsion layers, at least one blue-sensitive emulsion layer and at least one nonsensitive layer, wherein silver halide tabular grains of 0.15 ?m or less grain thickness are contained in an amount of 50% or more in respective layers with the highest speed among the green- and red-sensitive emulsion layers; wherein the total dry film thickness of the material on the emulsion layer side thereof is 24 ?m or less; and wherein the compound (A) is contained in at least one silver halide emulsion layer or the nonsensitive layer. Compound (A): heterocyclic compound having one or more heteroatoms, which heterocyclic compound is capable of substantially increasing the sensitivity of silver halide color photosensitive material by addition thereof as compared with that exhibited when the compound is not added.

Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 1) the non-photosensitive organic silver salt includes at least one compound selected from the group consisting of a silver salt of an azole compound and a silver salt of a mercapto compound, and 2) the photosensitive silver halide has a spectral sensitizing dye in the form of a multilayer adsorbed on its surface. According to the invention, an improved black and white photothermographic material and image forming method realizing high sensitivity, favorable gradation, and less dependence on developing process conditions are provided.

Abstract: A silver halide emulsion is disclose, containing silver halide grains, in which at least 50% by number of the silver halide grains is accounted for by (1) cubic grains (2) having a chloride content of not less than 90 mol %, (3) an iodide content of from 0 to 2 mol % and (4) a bromide content of from 0.1 to 10 mol %, and (5) containing dislocation lines in the peripheral region and (6) having rounded corners.

Abstract: The present invention relates to a silver halide photographic material comprising a paper support having resin layers coated on both sides of a base paper, and in particular, to a silver halide photographic material exhibiting superior glossiness and improved sharpness, long-term stability, fingerprint resistance and pressure resistance. The silver halide photographic material comprising on one side of the paper support having resin coat layers on both sides of a base paper, one or more light-sensitive layers and one or more light-insensitive layers, wherein after the photographic material of an L-size (having a length of 89 mm in a machine direction of the base paper and a length of 127 mm vertical to the machine direction) is processed, the photographic material exhibits an image clarity (C-value) of 20% to 60% which is determined using a 1.

Abstract: A photothermographic imaging material containing a support having thereon light-insensitive organic silver salt grains, photosensitive silver halide grains, a reducing agent for silver ions and a binder, wherein, (i) each of the organic silver salt grains has a structure having different silver ion dissociation constants at a surface portion and at an inner portion of the grain; (ii) each of the silver halide grains produces a larger number of latent images in a surface portion than in an inner portion of the grain by exposure to light; (iii) each of the silver halide grains produces a larger number of latent images in the inner portion than in the surface portion of the grain after being subjected to a thermal development; and (iv) a surface photographic speed of each of the silver halide grains decreases after being subjected to the thermal development.

Abstract: A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.

Abstract: A silver halide color photographic light-sensitive material having, on a support, a yellow dye-forming light-sensitive silver halide emulsion layer, a magenta dye-forming light-sensitive silver halide emulsion layer and a cyan dye-forming light-sensitive silver halide emulsion layer, and a light-insensitive hydrophilic colloid layer that does not develop a color, wherein a total amount of a hydrophilic binder on the emulsion layer-coating side of the support is 6.0 g/m2 or less, and at least one of said silver halide emulsion layers contains at least one compound selected from metal complexes represented by formula (I) set forth below and a silver halide emulsion of a 90 mole % or more silver chloride content with a silver bromide-containing phase formed in a layer form.

Abstract: A silver halide color photosensitive material comprising a support and, superimposed thereon, at least one blue-sensitive silver halide emulsion layer, green-sensitive silver halide emulsion layer and red-sensitive silver halide emulsion layer, wherein (i) the specified speed of the photosensitive material is 350 or higher, (ii) the coating amount of silver in the photosensitive material is 7 g/m2 or less, and (iii) any of the color-sensitive silver halide emulsion layers is composed of two or more silver halide emulsion layers of different photographic speeds, of which the silver halide emulsion layer with the highest photographic speed contains tabular silver halide grains of 8 or greater aspect ratio in a ratio of 70% or more based on the total projected area and regular-crystal silver halide grains of 0.1 to 0.5 ?m equivalent sphere diameter in a ratio of 0.5 to 5% based on the total projected area.

Abstract: Novel silver compounds can include a primary core of a photosensitive silver halide and a shell covering the primary core. This shell includes one or more non-photosensitive silver salts, each silver salt including an organic silver coordinating ligand. Other novel silver compounds are homogeneous silver salts of organic silver coordinating ligands throughout (non-core-shell). Still other silver compounds can include a primary core of a non-photosensitive metal salt and a shell covering the primary core. This shell includes one or more non-photosensitive silver salts, each silver salt including an organic silver coordinating ligand. These types of silver compounds can be used as sources of reducible silver ions in thermally developable imaging materials including thermographic and photothermographic materials.

Abstract: A heat-developable photosensitive material comprising on a support light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent and a binder, wherein at least 30 mole % of the total light-sensitive silver halide is silver halide of high silver iodide content having an average ?-phase proportion of from 5 to 70 mole %, and a method of forming images on the heat-developable photosensitive material with a semiconductor laser.

Abstract: A silver halide color photosensitive material composing respectively at least one red-, green-, and blue-sensitive silver halide emulsion layer, the color photosensitive material containing a magenta dye which is fixed in the specific layer and is not colored by a coupling reaction with developing agent oxidation products, and/or containing a cyan dye which is fixed in the specific layer and is not colored by a coupling reaction with developing agent oxidation products, and containing an ultraviolet absorptive polymer latex represented by the formula (I) which is impregnated with a non high molecular weight ultraviolet absorptive compound. wherein a phenyl ring or a benzo ring may be optionally substituted, either of m or n is 1 and another is 0, and M and K are represented by the following formula (II): wherein R3 is H or an alkyl group, L is a divalent binding group, and p is 0 or 1.

Abstract: An organic silver salt dispersion containing: light-insensitive organic silver salt grains; photosensitive silver halide grains; a solvent; and a binder for dispersion, wherein the organic silver salt is prepared by using: (i) an alkaline metal salt of an organic acid other than a sodium salt; and (ii) a water soluble silver compound, and the binder is a polyvinyl acetal resin having a polymerization degree of 250 to 1000 and prepared by acetal forming reaction of a polyvinylalcohol with an aldehyde.

Abstract: A reflective radiographic material is useful to provide images that can be viewed without a light box. This reflective radiographic material has a reflective support and a silver halide emulsion on one side of the support only. The material can be used with a single green- or blue-light emitting fluorescent intensifying screen as part of an imaging assembly. The reflective support enables the image in the radiographic material to be viewed without a light box and the speed of the material enables the use of low power X-radiation generating equipment.

Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.

Abstract: A reflective radiographic material (at least 200 system speed) is useful especially to provide images that can be viewed without a light box. This reflective radiographic material has a reflective support, a silver halide emulsion on one side of the support only, and a photographic speed of at least 200. The reflective material also includes an incorporated black-and-white developing agent and a co-developing agent, and can be used with a single fluorescent intensifying screen as part of an imaging assembly. The reflective support enables viewing the resulting image without a light box and the high speed of the material enables the use of low power X-radiation generating equipment. The incorporated black-and-white developing agent and co-developing agent allow the radiographic material to be quickly processed after exposure using simplified processing chemistry.

Abstract: A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high bromide cubical silver halide grains, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and high bromide silver halide grain cores, the grain cores comprising at least 5 mole % of the final emulsion silver and the contents of the vessel being maintained at a temperature of at least about 65° C., and (b) precipitating a high bromide silver halide shell which comprises at least 5 mole % of the final emulsion silver onto the grain cores by introducing at least a silver salt solution into the dispersing medium at a specified high rate, wherein a minor percentage of chloride ions, relative to bromide, is introduced into the reaction vessel prior to or concurrent with precipitation of the high bromide shell, and wherein the concentration of silver halide grains in the reaction vessel at the end of the precipitation of the shell is at least 0.5 mole/L.