Fujifilm Corporation

Kei Miura

Makoto Kitada

Haruyasu Nakatsugawa

Yasuhisa Kaneko

Keiichirou Sato

Keiichiro Sato

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 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.

Growing community of inventors

Kanagawa, Japan

Kei Miura