| 摘要 |
PROBLEM TO BE SOLVED: To further improve sharpness in a radiation image detector which employs an irradiation side sampling (ISS) method and which has a phosphor layer with a particle structure.SOLUTION: In a radiation image detector, a solid state detector 20 and a wavelength conversion layer 21 are arranged in this order from an incident side of a radiation. The wavelength conversion layer 21 converts the radiation having passed through the solid state detector 20 to visible light. The solid state detector 20 detects the visible light and generates image data. The wavelength conversion layer 21 is a phosphor layer in which phosphor particles 40 are dispersed in a binder 41. The weight of the binder 41 per unit thickness of the wavelength conversion layer 21 is distributed in a manner to gradually decrease toward the solid state detector 20 side. |
