Konica Corporation

Haruhiko Masutomi

Kazuyoshi Ichikawa

Hideaki Wakamatsu

Yasushi Nakano

Akihiro Maezawa

Chikao Mamiya

Takehiko Shoji

Hirofumi Ohtani

Hiroaki Ando

Hiroyuki Nabeta

Kanae Kawabata

Yumiko Nimura

Naoko Uchida

Satoshi Ito

Isao Kobayashi

Masayuki Nakazawa

Hiroshi Kashiwagi

Satoshi Honda

Kouji Amitani

Naoko Furusawa

Yoshiyuki Ishimitsu

Manabu Watanabe

Hiroto Itoh

Tomoko Saito

Yusuke Kawahara

Tetsuya Yoshida

Masafumi Saito

Sadatoshi Nishibuchi

Masaaki Murayama

Chikao Mimiya

Masako Kuramoto

A housing for accommodating a radiation detecting member, has a first plate member to which radiation is incident from an outside of the housing; a second plate member arranged opposite to the first plate member; a radiation detecting member provided between the first plate member and the second plate member and having a radiation receiving surface to detect the radiation having passed through the first plate member; and a scattering radiation shielding member arranged at a radiation receiving surface side of the radiation detecting member and to eliminate scattering radiation from the radiation before the radiation is detected by the radiation receiving surface.

Cassette for radiographic imaging, radiographic image reading apparatus and radiographic image reading method

A method for preparing a rare earth activated alkaline earth metal fluorohalide stimulable phosphor represented by formula (Ba M )FBr I :aM , bLn, cO is discloded, comprising the steps of (a) preparing an aqueous mother liquor containing BaX of not less than 2.0 mol/l and a halide of Ln, (b) adding an aqueous solution containing an inorganic fluoride of not less than 5 mol/l to the mother liquor while maintaining a temperature of at least 50&deg; C. to form a crystalline precipitate of a precursor of the stimulable phosphor, (c) separating the precipitate of the precursor from the mother liquor, and (d) calcining the separated precipitate.

Rare earth activated alkali earth metal fluorohalide stimulable phosphor, preparation method thereof and radiation image conversion panel

A method for preparing a stimulable phosphor is disclosed, comprising forming a stimulable phosphor and coating the formed stimulable phosphor with a metal oxide and a silane coupling agent, or a metal oxide and a metal alkoxide. Another method is also disclosed, comprising forming a stimulable phosphor precursor, calcining the formed precursor in the presence of a metal oxide or metal alkoxide, and coating the calcined precursor with a silane coupling agent or metal alkoxide. Further disclosed is a preparation method of a radiation image conversion panel containing the stimulable phosphor.

Stimulable phosphor and radiation image conversion panel by use thereof

A preparation method of an oxygen-introduced stimulable phosphor including a rare earth activated alkaline earth metal fluorohalide stimulable phosphor is disclosed, comprising the steps of heating a precursor of a stimulable phosphor in an atmosphere containing oxygen, and further heating the heated precursor in a weakly reducing atmosphere. Stimulable phosphors prepared by this method and a radiation image conversion panel by use thereof are also disclosed.

Stimulable phosphor, preparation method thereof and radiation image conversion panel

A silver halide emulsion is disclosed, comprising tabular grains containing not less than 50 mol % bromide, having two parallel (111) major faces and an aspect ratio of 2 or more, and accounting for at least 50% of the total grain projected area; the tabular grains each comprising regions different in iodide concentrations, wherein one of the regions is a central region containing high iodide and a second of the regions is an annular band containing less iodide than the iodide concentration of the central region, and the annular band accounting for less than 5% of each major face.

Silver halide photographic emulsion

A radiation image conversion panel comprising a support having thereon a phosphor layer containing a binder and a stimulable phosphor, wherein, when the phosphor layer is excited by being exposed to light at a maximum excitation wavelength (.lambda.1) of the phosphor, a maximum peak intensity of instantaneous emission (Int.) emitted from the phosphor layer satisfies the following:

Radiation image conversion panel

A stimulable phosphor is disclosed, comprising a rare earth activated alkaline earth metal fluorohalide stimulable phosphor, wherein the rare earth of the phosphor is a rare earth metal selected from the group consisting of Eu, Ce and Gd and the content of the rare earth metal in the surface portion of the particles of the stimulable phosphor being less that in a central portion of said particles. Disclosed is also a radiation image conversion panel comprising a support having thereon a phosphor layer containing the stimulable phosphor.

Rare earth activated alkaline earth metal fluorohalide stimulate phospor

A silver halide grain is disclosed, having one or more chemical sensitization clusters, and a largest size of the clusters being not less than 1.2 nm and less than 4.0 nm in diameter. A silver halide emulsion containing silver halide grains, as above-described and a preparation method are also disclosed.

Silver halide grain, silver halide emulsion and preparation method

A light spectrum measuring apparatus comprises a sensor case on which a window with a glass is provided; a light emitting member and a light receiving member both provided in the case so that light emitted from the light emitting member passes through the glass, is reflected from solution, returns in the case, and is received by the light receiving member, wherein the glass, the light emitting member and the light receiving member are arranged in such a positional relation that positive reflected light which is emitted from the light emitting member and directly reflected by the glass without proceeding in the solution, is not received by the light receiving member.

Measuring sensor, diffuse reflectance spectrum measuring method using

A method for chemically sensitizing a silver halide photographic emulsion with a selenium compound is disclosed. The sensitizing method comprises the steps of

Method for chemically sensitizing silver halide photographic emulsion

Disclosed is a method of producing a silver halide photographic emulsion comprising steps of:

Method of producing a silver halide photographic emulsion

A desalting method of a silver halide emulsion is disclosed, comprising removing soluble salts from the silver halide emulsion by electrodialysis, wherein said electrodialysis is carried out at a pH within a range of .+-.0.5 of an isoelectric point of a gelatin contained in the silver halide emulsion. Furthermore, by adding a salt during the course of the electrodialysis, the concentration of the emulsion is accomplished concurrently with desalting thereof.

Method for desalting silver halide emulsion and silver halide emulsion

A method for manufacturing an ultrafine gold and/or silver chalcogenide being used for the sensitivity speck seeding sensitization method is disclosed. The gold and/or silver compound, and a water-soluble chalcogenide are mixed into a protective colloid solution under prescribed condition. The light-sensitive photographic material obtained by this method has a high sensitivity and low fog property.

Ultrafine gold and/or silver chalcogenide and production thereof

An apparatus for producing sparingly water-soluble salt crystal grains, including a mixing vessel in which a cationic component solution and an anionic component solution are mixed to form a precipitation process solution in which sparingly water-soluble salt grains are produced, wherein the mixing vessel is connected to a reaction chamber through a one-way valve, and the precipitation process solution is injected into the crystal growth process solution through the one-way valve immediately after mixing while stirring the crystal growth process solution.

Apparatus for production of sparingly water-soluble salt crystal grains

A method of preparing silver halide grains for a photographic emulsion which has a constant mass production qualities and a controlled crystalization technique is disclosed. The first reaction of halides and silver is performed in a mixer with a blades of high speed then the fine crystals of silver halide are kept in an adjusting vessel where monitoring and control devices are provided and the fine crystals are supplied to a parent tank for ripening the crystals prepared in the parent tank.

Growing community of inventors

Hino, Japan

Haruhiko Masutomi