Fujifilm Corporation

Makoto Kitada

Kei Miura

Haruyasu Nakatsugawa

Jun Enomoto

Yasuhisa Kaneko

Keiichirou Sato

Akihito Bettouyashiki

Sho Shimizukawa

Keiichiro Sato

A housing of an electronic cassette has an inclined surface which is formed between a side surface and a rear surface thereof and inclined relative to the side surface and the rear surface. An antenna opening through which a radio wave is transmitted is formed on the inclined surface. Since the antenna opening is formed on the inclined surface, the antenna opening is not blocked by a rear plate of a holder of an upright radiographic stand or a supine radiographic stand, and the antenna opening is not blocked by a side panel of an outer grid. Both in the case where the electronic cassette is set to the holder and in the case where the outer grid is attached to the electronic cassette, it is possible to perform stable wireless communication.

Electronic cassette

An electronic cassette comprises a main battery which is detachably attached to a battery loading unit, and a sub-battery which supplies electricity to a bias power circuit and so on in substitution for the main battery. A power source selector changes the power source to the sub-battery from the main battery when it is judged that a replacement operation of the main battery is started. Since supply of the electricity to the bias power circuit is continued, and the bias voltage continues being applied to a photoelectric converter without a break, there is no need to perform a photoelectric conversion stabilizing process and an offset correction image detecting process after turning on of the main power. Therefore, a start-up time TRis largely shortened from a start-up time TR

Electronic cassette and operating method thereof

A radiological image conversion panelis provided with a phosphorcontaining a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar sectionformed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.

Radiological image conversion panel, method of manufacturing the same, and radiological image detection apparatus

A center position of a female connector is located near to a rear surface of a housing compared with a center position of the housing in a thickness direction of the housing of an electronic cassette. An inclined surface, which is inclined relative to a side surface and the rear surface of the housing, is formed between the side surface and the rear surface. The female connector is formed on the inclined surface. Therefore, it is possible to attach an outer grid provided with a longer side panel to the housing, in comparison with the case where the center position of the female connector is made coincident with the center position of the housing in the thickness direction of the housing, without requiring any processing.

Electronic cassette system and electronic cassette

A radiological image conversion panelprovided with a supportand a phosphorwhich is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar sectionformed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.

The device includes: a scintillatorconfigured to emit fluorescence by irradiation of radiation, and a photodetectorconfigured to detect the fluorescence emitted from the scintillatoras an electrical signal, wherein the scintillatorincludes a columnar sectionwhich is disposed at a rear side of the photodetectorin a travel direction of the radiation and at the same time is formed by a group of columnar crystalsA obtained through columnar growth of crystals of a fluorescent material, and a first non-columnar sectionwhich is provided at the photodetectorside of the columnar section

Radiological image detection apparatus and method of manufacturing the same

The X-ray image detection apparatusincludes: a scintillator panelincluding a phosphorthat is formed on a supportand emits fluorescence by irradiation of radiation; and a photodetectorthat detects the fluorescence emitted by the phosphor as an electric signal, wherein the phosphorincludes a columnar sectionformed by growing crystals of a fluorescent material in a columnar shape, and a non-columnar sectionprovided between the columnar sectionand the supportand has a porosity lower than that of the columnar section, and the scintillator panelis disposed at the rear side of the photodetectorin a radiation travelling direction, and in the phosphor, the non-columnar sectionis disposed at a side opposite to the photodetector side.

A radiation image detection apparatus comprising a scintillator, which is configured to include columnar crystals and converts radiation into light when the radiation is irradiated thereon, and an optical detector, which converts the light, emitted from the scintillator into an electrical signal, the scintillator and the optical detector being arranged on a support such that the radiation is incident on the optical detector and the scintillator in this order, wherein a columnar crystal area is present at a radiation-incident side of the scintillator, and a non-columnar crystal area is present at a side of the scintillator opposite to the radiation-incident side; and a method for manufacturing the radiation image detection apparatus are provided.

Radiation image detection apparatus and manufacturing method of the same

The present invention provides a radiation detector that can suppress a deterioration of image quality of a radiation image while suppressing the size of the radiation detector. Namely, a conductive layer configured by a conductive member is disposed at a portion that corresponds to at least the back side of the peripheral edge portion of a bias electrode, on the surface of an insulating substrate.

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Ashigarakami-gun, Japan

Makoto Kitada