Radiation image conversion panel and preparation method thereof

摘要

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 µm is formed on a support vapor deposition and then is heat-treated, wherein a ratio of transmittance T/T 0 (T represents transmittance after heat-treating, and T 0 before heat-treating) at a stimulated luminescence wavelength of the stimulable phosphor is 0.5 ‰ T/T 0 ‰ 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.