Hamamatsu-photonics K.k.

Hirotake Osawa

Yutaka Kusuyama

Masanori Yamashita

Shintaro Toyama

Munenori Shikida

Hidenori Jonishi

Katsuhiko Suzuki

Yusuke Minami

Provided is a scintillator panel including: a support; a scintillator layer provided on the support, the scintillator layer being composed of a columnar crystal; and a protective film covering at least the scintillator layer. The scintillator layer contains cesium iodide as a base material and cerium as an activator.

Scintillator panel and radiation detector

A method of manufacturing a radiation detector includes a first step of forming a scintillator layer including a plurality of columnar crystals on a main surface of a sensor panel including a plurality of photoelectric converting elements by a vapor phase deposition method, a second step of forming a resin frame on the main surface to surround the scintillator layer and disposing a frame member made of an inorganic solid material to be in contact with the resin frame along an outer circumference of the resin frame, a third step of sealing the scintillator layer by bonding a protective plate to the resin frame, and a fourth step of curing the resin frame.

Radiation detector manufacturing method

A radiation detector includes a sensor panel that includes a main surface and a plurality of photoelectric converting elements formed on the main surface, a scintillator layer that includes a plurality of columnar crystals in a scintillator material and is formed on the main surface, an intermediate layer that covers a front surface and a side surface of the scintillator layer, a resin frame that is formed on the main surface to surround the scintillator layer, and a protective plate that is bonded to the resin frame to seal the scintillator layer. The scintillator layer extends along the main surface to come into contact with the resin frame with the intermediate layer interposed therebetween.

Radiation detector and scintillator panel

A scintillator panel includes: a substrate that includes a principal surface and has transparency to the scintillation light; a scintillator layer that is disposed on the principal surface; a frame member that is disposed on the principal surface so as to surround the scintillator layer when viewed in a direction intersecting the principal surface; a protective layer that is disposed on the principal surface and the scintillator layer and is fixed to the frame member so as to seal the scintillator layer; a sheet-shaped optical functional layer that is disposed between the scintillator layer and the protective layer; and an elastic member that is interposed between the optical functional layer and the protective layer and is elastically deformed.

A scintillator panel that converts radiation into scintillation light includes a substrate that includes a principal surface, a scintillator layer that is disposed on the principal surface, and a reflective layer that is disposed on the scintillator layer and reflects the scintillation light. The scintillator layer includes a plurality of scintillator portions which are arranged with a predetermined pitch on the principal surface. Each scintillator portion includes a side face that extends in a direction crossing the principal surface. The reflective layer includes a plurality of metal particles with a foil shape extending along the side faces and is disposed so as to cover the side faces.

Provided is a method of manufacturing a scintillator panel configured to convert radiation into scintillation light, the method including a first process of forming a plurality of convex sections that protrude from a rear surface toward a front surface of the substrate in a predetermined direction and concave section defined by the convex sections on the front surface of the substrate having the front surface and the rear surface, a second process of forming first scintillator units respectively extending from the convex sections of the substrate in the predetermined direction through crystal growth of a columnar crystal of a scintillator material, and a third process of radiating a laser beam to contact portions of the first scintillator units extending from the adjacent convex sections and separating the first scintillator units extending from the adjacent convex sections by scanning the concave section with the laser beam.

Scintillator panel manufacturing method, scintillator panel, and radiation detector

A scintillator panel for converting radiation into scintillation light, includes a substrate having a front surface and a back surface, a plurality of scintillator sections formed on the front surface of the substrate so as to be separate from one another, and having upper surfaces and side surfaces extending from the upper surfaces toward the front surface of the substrate, solvent permeation blocking film formed on the upper surfaces and the side surfaces of the scintillator sections so as to cover the upper surfaces and the side surfaces of the scintillator sections, and a light shielding layer formed on the solvent permeation blocking film, that is for shielding the scintillation light, and the scintillator section is composed of a plurality of columnar crystals of a scintillator material, the solvent permeation blocking film is formed so as not to fill gaps between the side surfaces of the adjacent scintillator sections.

Scintillator panel and radiation detection device

A scintillator panel for converting radiation into scintillation light, the scintillator panel includes a substrate having a front surface and a back surface, and formed with a plurality of convex portions projecting from the front surface in a predetermined direction toward the front surface from the back surface and a concave portion defined by the convex portions, a plurality of first scintillator sections formed on the respective convex portions of the substrate, and a second scintillator section formed on the bottom surface of the concave portion of the substrate, and the first scintillator section has a first portion extending along the predetermined direction from an upper surface of the convex portion and a second portion extending along the predetermined direction from side surfaces of the convex portion so as to contact with the first portion, the first and second portions are composed of a plurality of columnar crystals of a scintillator material, the first scintillator sections are separated from one another, and the second scintillator section is in contact with the second portion.

Provided is a radiation detectorcapable of improving reliability while using a plurality of light receiving elements to provide a large screen size. A radiation detectorincludes: a flexible supporting substratethat includes a radiation incident surfaceand a radiation emission surface; a scintillator layermade from a plurality of columnar crystals H formed on the emission surfacethrough crystal growth and generating light due to the incident radiation; a moisture-proof protective layercovering the scintillator layerand filled between the plurality of columnar crystals H; and light receiving elementsA toD arranged to oppose the scintillator layerand detecting the light generated in the scintillator layer

Radiation detector

Provided is a radiation detectorcapable of improving reliability associated with radiation detection. The radiation detectorincludes: a supporting substratethat can transmit radiation there-through; a scintillator layerformed on one principal surfaceof the supporting substrate, the scintillator layerincluding an incident surfaceon which radiation is incident and an emission surfaceemitting light generated by the incident radiation and on a side opposite to the incident surface; and a light detection portiondisposed on an emission surface side of the scintillator layerfor detecting light emitted from the emission surface

Method for detecting radiation

A scintillator paneland a radiation image sensorin which characteristics can be changed easily at the time of manufacture are provided. The scintillator panelcomprises a scintillatorhaving an entrance surfacefor a radiation; a FOP, arranged on an opposite side of the scintillatorfrom the entrance surface, for transmitting the light generated by the scintillator; and a resin layer, formed from a resin containing a color material on the entrance surfaceside of the scintillator, for performing at least one of absorption and reflection of the light generated by the scintillator

Scintillator panel, and radiographic image sensor

A radiation image conversion panel which can improve its optical output and resolution is provided. A radiation image conversion panelcomprises a FOP, a heat-resistant resin layerformed on a main faceof the FOP, and a scintillatorformed by vapor deposition on a main faceof the heat-resistant layeron a side opposite from the FOPand made of a columnar crystal. In this radiation image conversion panel, the main faceof the heat-resistant resin layerhas a surface energy of at least 20 [mN/m] but less than 35 [mN/m]. This can make the crystallinity of the root part of the scintillatorfavorable, so as to inhibit the root part of the scintillatorfrom becoming harder to transmit and easier to scatter the output light.

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Hamamatsu, Japan

Hirotake Osawa