PROBLEM TO BE SOLVED: To detect the radiation amount of radiation with more accuracy.SOLUTION: A radiation detector comprises: a light-emitting layer 13 for emitting light by being irradiated with radiation a substrate 22 that is laminated to the light-emitting layer 13 and that is formed with a plurality of pixels including sensor units where electric charges are generated by receiving light emitted from the light-emitting layer 13 and switching elements for reading out the electric charges generated in the sensor units a plurality of filters 25 that are laminated on the side opposite to the side on which the substrate 22 of the light-emitting layer 13 is laminated or on the side opposite to the side on which the light-emitting layer 13 of the substrate 22 is laminated and that allow light, having wavelength bands that are arranged not to overlap with each other and that are respectively different from each other, to pass through and a light guide plate 26 that is laminated on the side opposite to the side on which the light-emitting layer 13 of the plurality of filters 25 is laminated or on the side opposite to the side on which the substrate 22 of the filters 25 is laminated.COPYRIGHT: (C)2013,JPO&INPIT【課題】より的確に放射線の照射量を検出することができる。【解決手段】放射線が照射されることにより光を発生する発光層13と、発光層13に積層され、発光層13で発生した光を受光することにより電荷が発生するセンサ部および当該センサ部で発生された電荷を読み出すためのスイッチング素子を含んだ画素が複数個形成された基板22と、発光層13の基板22が積層された側と反対側、または基板22の発光層13が積層された側と反対側に積層され、各々重ならないように配置された各々互いに異なる波長帯域の光を通過させる複数のフィルタ25と、複数のフィルタ25の発光層13が積層された側とは反対側またはフィルタ25の基板22が積層された側と反対側に積層された導光板26と、を備えた。【選択図】図4
