Konica Minolta Medical and Graphic, Inc.

Konica Corporation

Konica-minolta Holdings, Inc.

Osamu Morikawa

Takehiko Shoji

Satoshi Honda

Kuniaki Nakano

Shinji Kudo

Akihiro Maezawa

Noriyuki Mishina

Katsuya Kishinami

Hiroshi Otani

It is an object to provide a radiation image conversion panel exhibiting excellent properties in luminance and sharpness, and a preparation method thereof. Provided also is a drastically increased amount of stimulated luminescence of a post-manufacture radiation image conversion panel. Disclosed is a method for manufacturing a radiation image conversion panel in which a stimulable phosphor layer having a thickness of not less than 50 &#x3bc;m is formed on a support vapor deposition and then is heat-treated, wherein a ratio of transmittance T/T(T represents transmittance after heat-treating, and Tbefore heat-treating) at a stimulated luminescence wavelength of the stimulable phosphor is 0.5&#x2266;T/T&#x2266;10. Also disclosed is a method for manufacturing a radiation image conversion panel via conducting a process of soaking in a halogenated solvent, as well as a process of heating a phosphor panel possessing a stimulable phosphor layer.

Radiation image conversion panel and preparation method thereof

A radiation image conversion panel containing: a stimulable phosphor plate having a stimulable phosphor layer on a substrate; a first protective film provided on a stimulable phosphor layer of the substrate, the first protective film not being adhered to the surface of the stimulable phosphor layer and having a peripheral area extending outside of substrate; and a second protective film provided on the opposite side of the substrate to the stimulable phosphor layer, the second protective film having a peripheral area extending outside of the substrate, wherein the peripheral area of the first protective film and the peripheral area of the second protective film are heat-sealed with each other; and the radiation image conversion panel has a dehydrating function to dehydrate a space surrounded by the first protective film and the second protective film.

Radiation image conversion panel

A method for producing a radiation image conversion panel containing the steps of: forming a stimulable phosphor layer on a substrate by a vapor deposition method to prepare a phosphor panel; hydrating the phosphor panel under a relative humidity of 30 to 60%; and sealing the phosphor panel with a moisture-proof protective film to prepare the radiation image conversion panel.

Production method of radiation image conversion panel

A radiation image conversion panel comprising a phosphor sheet having a stimulable phosphor layer and a protective layer provided so as to cover the surface of the phosphor layer, wherein mean slope &#x394;a of an outer surface of the protective layer not adjacent with the phosphor layer is from 0.01 to 0.1 and the surface roughness Ra in &#x3bc;m of the inner side or the phosphor sheet side of the protective layer is 0.05 &#x3bc;m to 0.45 &#x3bc;m, and the stimulable phosphor layer is provided by a coating method.

A radiation image conversion panel exhibiting superior homogeneity of an activator in a phosphor layer and enhanced luminance and sharpness, and a preparation method of the same. Described is the radiation image conversion panel having a stimulable phosphor layer on a support. The stimulable phosphor layer is formed by a vapor-phase growth process so as to have a layer thickness of 50 &#x3bc;m to 1 mm after a thermoplastic resin film is prepared on the support or the stimulable phosphor layer mentioned above is formed on a support composed of a thermoplastic resin containing a carbon fiber.

A radiation image conversion panel comprising a support and a stimulable phosphor layer provided on the support, in which the stimulable phosphor layer is formed by a gas-phase growing method so that the layer thickness of not less than 50 &#x3bc;m and the surface of the support is composed of polyimide resin.

Radiation image conversion panel and production method thereof

A radiographic image conversion panel including a support, and at least one photostimulable phosphor layer formed on the support by a vapor phase deposition method (vapor phase growth). The panel is manufactured according to deposition, and a temperature of the support at the time of deposition is controlled at 50&#xb0; C. to 150&#xb0; C.

Radiographic image conversion panel and method for manufacturing the same

The invention relates to a radiation image conversion panel comprising a substrate having thereon a stimulable phosphor layer and a protective layer. The stimulable phosphor layer is provided on the substrate by a vapor-phase deposition method. Further, a construction including the substrate and the protective layer has a flexibility.

Radiation image conversion panel and producing method thereof

A radiation image conversion panel comprising a support provided thereon a stimulable phosphor layer and a protective layer including an alumina-evaporated layer, wherein the protective layer has a light transmittance of not more than 80% to light having a wavelength of not more than 400 nm and has a light transmittance of not less than 80% to light having a wavelength of not less than 410 nm, and the stimulable phosphor layer comprises a stimulable phosphor having a maximum emission in a wavelength of not less than 410 nm.

A radiation image conversion panel is disclosed, comprising a support having thereon a stimulable phosphor layer comprising columnar stimulable phosphor crystals, wherein the tip of the columnar crystals have a tip exhibiting an average angle of 20&deg; to 80&deg; which a centerline in the direction of crystal growth makes with a line tangent to a section of the tip having the centerline.

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Hachioji, Japan

Osamu Morikawa