RADIATION DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide an X-ray detector which can prevent deterioration in the light emission efficiency and the resolution due to the deliquescence of a scintillator layer. SOLUTION: A protective layer 44 for covering the scintillator layer 43 of the X-ray detector 1 has the constitution in which a second protective film 44b of a silica film is stacked on a first protective film 44a of a transparent resin film. The water permeability of the protective layer 44 becomes <1.2 g/m2day. The second protective film 44a divides the pinhole defect of the first protective film 44a. The high heat-resistance of the second protective film 44b can divide the defect after a heating process. The first protective film 44a protects the second protective film 44b. The second protective film 44b can prevent the generation of a crack. COPYRIGHT: (C)2006,JPO&NCIPI