Canon Kabushiki Kaisha

Taiki Takei

Shinichi Takeda

Masato Inoue

Satoru Sawada

Takamasa Ishii

Kota Nishibe

Masayoshi Akiyama

Shoshiro Saruta

Noriaki Oguri

A radiation image pickup apparatus includes an image pickup panel in which a plurality of image pickup substrates including photoelectric-conversion elements is fixed onto a base, a scintillator portion including a scintillator layer of alkali halide-based columnar crystal and overlaid on the image pickup panel, and a moisture-proof layer provided between the base and the scintillator layer, at least between the plurality of image pickup substrates. The water vapor permeability of the moisture-proof layer is 10 g/m/day or less.

Radiation image pickup apparatus, and radiation image pickup system

A radiation detecting apparatus includes a scintillator and a photoelectric conversion panel. The photoelectric conversion panel includes a frame member disposed on an outer side of a photoelectric conversion section along at least a portion of one side of the photoelectric conversion panel. The frame member includes an inclined surface having a downward slope toward the photoelectric conversion section. The scintillator includes a first scintillator formed continuously on the inclined surface of the frame member and a surface of the photoelectric conversion section, and a second scintillator formed on the first scintillator. The first scintillator has a non-columnar crystal structure, and the second scintillator has a columnar crystal structure.

Radiation detecting apparatus and radiation detecting system

A radiation detection apparatus, comprising a housing including a first plate portion and a second plate portion arranged to face each other, a scintillator configured to convert radiation into light, supported by a supporting portion arranged in a side of the second plate portion in the housing, a sensor panel including a sensor array in which a plurality of sensors for detecting light are arrayed, interposed between the scintillator and the first plate portion in the housing, and a member interposed between the first plate portion and the sensor panel in the housing, wherein the sensor panel is arranged to position an outer edge of the sensor panel outside an outer edge of the scintillator, and the member is arranged to position an outer edge of the member inside the outer edge of the scintillator.

Radiation detection apparatus and imaging system

A radiation imaging apparatus comprising a plurality of sensor units each including a plurality of photoelectric converters, a substrate configured to support the plurality of sensor units, and a scintillator, wherein the scintillator comprises scintillator grains configured to convert radiation into light and a binder configured to make the scintillator grains adhere to each other, and the scintillator includes first portions provided between the plurality of sensor units and a second portion provided on the plurality of sensor units and the substrate.

Radiation imaging apparatus and radiation imaging system

An electric device, comprising a conductive guard ring formed on a substrate along an outer periphery of the substrate, an electrode formed inside the guard ring on the substrate, and a connecting portion formed above the electrode, for connecting an external apparatus and the electrode, wherein the connecting portion includes a conductive member for electrically connecting the external apparatus and the electrode, and an insulating member formed on a lower surface of the conductive member, and the insulating member exposes a portion of the conductive member, which is positioned immediately above the electrode, and an end of the insulating member is positioned inside the guard ring in planar view such that the conductive member and the guard ring do not contact each other.

Electric device, method for manufacturing the same, and radiation inspection apparatus

A radiation detection apparatus includes a sensor panel which includes a photoelectric conversion unit, a scintillator layer disposed above the photoelectric conversion unit and configured to convert radiation into light, a reflection layer disposed above the scintillator layer and configured to reflect part of light generated by the scintillator layer toward the sensor panel; and a protective layer which covers the scintillator layer from above the reflection layer. The scintillator layer is fixed on the sensor panel. The reflection layer is fixed on the protective layer. Part of the protective layer is bonded to the sensor panel with an adhesive material so as to seal the scintillator layer and the reflection layer with the protective layer and the sensor panel. An upper surface of the scintillator layer includes a portion which is not fixed to the reflection layer.

Radiation detection apparatus and radiation detection system

A radiation image pickup apparatus includes a base, at least one image pickup element, a scintillator, a first heat peelable adhesive layer which is arranged between the base and the image pickup element and which fixes the base and the image pickup element, and a second heat peelable adhesive layer which is arranged between the image pickup element and the scintillator and which fixes the image pickup element and the scintillator, and in the radiation image pickup element described above, the first heat peelable adhesive layer contains first heat-expandable microspheres, the second heat peelable adhesive layer contains second heat-expandable microspheres, and the first heat-expandable microspheres have a different expansion starting temperature from that of the second heat-expandable microspheres.

Radiation image pickup apparatus, radiation image pickup system, and method for manufacturing radiation image pickup apparatus

A radiation imaging apparatus, comprising a sensor panel including a sensor array on which a plurality of sensors arranged in an array form and a scintillator layer provided on the sensor array, and a unit configured to perform signal processing based on a signal from the sensor array, wherein the sensor array includes a peripheral region and a central region located inside the peripheral region, the scintillator layer is disposed over the peripheral region and the central region so as to have uniform luminance efficiency with respect to the sensor array, and the unit performs the signal processing by using only signals from sensors disposed in the central region, of signals from the plurality of sensors, output from the sensor panel.

Radiation imaging apparatus, method for manufacturing the same, and radiation imaging system

A radiation imaging apparatus includes a substrate, at least one imaging element, a scintillator, a first heat peelable adhesive member which fixes the substrate to the imaging element, and a second heat peelable adhesive member which fixes the imaging element to the scintillator. An adhesive strength of the first heat peelable member is decreased by heat. A temperature of the first heat peelable adhesive member at which the adhesive strength is decreased is substantially equal to a temperature at which second heat peelable adhesive member fixes the imaging element to the scintillator. A heat transfer quantity per unit time of the substrate is different from that of the scintillator.

Radiation imaging apparatus, radiation imaging system, and method for manufacturing radiation imaging apparatus

A radiation detection apparatus includes a scintillator panel having a scintillator layer which converts radiation into light and a scintillator protective layer which protects the scintillator layer, and a sensor panel having a sensor array in which a plurality of photoelectric converters which detect light from the scintillator layer are arranged and a sensor protective layer which protects the sensor array. The scintillator panel is bonded to the sensor panel by making the scintillator layer adhere to the sensor protective layer by using the scintillator protective layer as an adhesive material. A principal component of the scintillator protective layer is the same as a principal component of the sensor protective layer.

Radiation detection apparatus, radiation detection system and method of manufacturing radiation detection apparatus

A radiation detection apparatus comprising semiconductor substrates each having a first surface on which a photoelectric conversion portion is formed and a second surface opposite to the first surface; a scintillator layer, placed over the first surfaces of the semiconductor substrates, for converting radiation into light; and an elastic member, placed between a base and the second surfaces, for supporting the second surfaces of the semiconductor substrates such that the first surfaces of the semiconductor substrates are flush with each other is provided. In measurement of the elastic member as a single body, an amount of stretch of a cubic specimen in a direction parallel to the first surface when being compressed in a direction perpendicular to the first surface is smaller than an amount of stretch of the specimen in the direction perpendicular to the first surface when being compressed in the direction parallel to the first surface.

Radiation detection apparatus and radiation imaging system

A scintillator includes a scintillator layer which converts radiation into light, the scintillator layer having a first end forming part of a contour of the scintillator layer and a second end forming another part of the contour, wherein the first end and the second end are located on opposite sides of the scintillator layer when viewed from the center of the scintillator layer, wherein an efficiency of conversion from radiation into light decreases from the first end to the second end.

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Okegawa, Japan

Taiki Takei