Patent Number: 
Section: abstract

A radiation image storage panel comprises a stimulable phosphor layer, which contains a stimulable phosphor, and a light reflecting layer, which contains a light reflecting substance and is overlaid on one surface of the stimulable phosphor layer. A scattering length of the light reflecting layer with respect to light having wavelengths falling within a stimulation wavelength range for the stimulable phosphor is at most 5 xcexcm. The light reflecting substance may be a white pigment. The light reflecting substance may have a bulk density of at most 1 mg/cm3 or a BET specific surface area of at least 1.5 m2/g. The light reflecting substance may have a mean particle size falling within the range of 1/4 of the stimulation wavelengths to two times as large as the stimulation wavelengths. The radiation image storage panel is capable of emitting light having a high intensity and furnishing a radiation image having good image quality with a high sharpness.