The present invention provides a radiation detection device wherein narrow-width partitions are formed with high accuracy in a large area and high light emission efficiency and a clear image quality are achieved. The present invention provides a radiation detection device having a configuration in which a substrate on the surface of which partitions are formed and a light detector face each other, wherein cells demarcated by the partitions are formed in a space between the substrate and the light detector, the cells are filled with phosphor, light detection pixels are provided on the surface of the light detector with which the partitions are not in contact, and an adhesion layer is formed between the partitions and the phosphor, and the light detector.本發明係以大面積、高精度地形成寬度細之隔牆，而且提供發光效率高，實現鮮明的畫質之放射線檢測裝置。本發明提供一種放射線檢測裝置，其係由在表面上形成有隔牆的基板與光檢測器呈相向所成之放射線檢測裝置，於上述基板與光檢測器之間的空間中，形成經上述隔牆所區劃的單元，於上述單元中填充螢光體，於上述隔牆未接觸的上述光檢測器之表面上設置光檢測像素，於上述隔牆及上述螢光體與上述光檢測器之間形成黏著層。
