Hamamatsu-photonics K.k.

Munenori Shikida

Yutaka Kusuyama

Masanori Yamashita

Shintaro Toyama

Hirotake Osawa

Hidenori Jonishi

Kazuhiro Shirakawa

In a scintillator panel, a glass substrate with the thickness of not more than 150 &#x3bc;m serves as a support body, thereby achieving excellent radiotransparency and flexibility and also relieving a problem of thermal expansion coefficient. Furthermore, in this scintillator panel, an organic resin layer is formed so as to cover a one face side and a side face side of the glass substrate and an organic resin layer is formed so as to cover an other face side and the side face side of the glass substrate on which the organic resin layer is formed. This effectively prevents the edge part from chipping or cracking. Furthermore, stray light can be effectively prevented from entering the side face of the glass substrate and, the entire surface thereof is covered by the organic resin layers, so that warping of the glass substrate can be suppressed.

Scintillator panel and radiation detector

In a scintillator panel, a glass substrate with the thickness of not more than 150 &#x3bc;m serves as a support body, thereby achieving excellent radiotransparency and flexibility and also relieving a problem of thermal expansion coefficient. Furthermore, in this scintillator panel, an organic resin layer is formed so as to cover a one face side and a side face side of the glass substrate. This reinforces the glass substrate, whereby the edge part thereof can be prevented from chipping or cracking. Furthermore, stray light can be prevented from entering the side face of the glass substrate, while transparency is ensured for light incident to the other face side of the glass substrate because the organic resin layer is not formed on the other face side of the glass substrate.

In a scintillator panel, a glass substrate with the thickness of not more than 150 &#x3bc;m serves as a support body, thereby achieving excellent radiotransparency and flexibility. Furthermore, in this scintillator panel, an organic resin layer is formed so as to cover the entire surface of the glass substrate. This reinforces the glass substrate, whereby the edge part thereof can be prevented from chipping or cracking. Furthermore, stray light can be prevented from entering a side face of the glass substrate and, since the organic resin layer is formed on the entire surface, it becomes feasible to suppress warping of the glass substrate due to internal stress after formation of a scintillator layer.

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.

Radiation image conversion panel

In a radiation image conversion panel (), a radiation conversion layer () for converting an incident radiation into light is formed on a substrate (). The radiation conversion layer () has a reflective layer (), on a side opposite from a light exit surface () for emitting the light, for reflecting the light to the exit surface () side, while the reflective layer () has a helical structure comprising helically stacked phosphor crystals. Thus constructed radiation image conversion panel () can enhance the reflectance without forming a reflective layer made of a thin metal film or the like and exhibit a reflectance higher than that in the case where the reflective layer is formed by spherical crystal particles.

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Hamamatsu, Japan

Munenori Shikida