PROBLEM TO BE SOLVED: To provide a radiation imaging device and a radiation imaging system, capable of detecting radiation irradiated on a specific region without defective pixels.SOLUTION: A TFT substrate 66 has an imaging region having pixels 74 which are two-dimensionally arranged including a sensor part 72 to detect light. A scintillator 71, of which irradiated region emits light, is arranged to overlap the imaging region. A light guide member 170 is arranged at a detection target region 172 of the scintillator 71 to detect radiation. The light generated at the detection target region is detected with the light guide member 170.COPYRIGHT: (C)2012,JPO&INPIT【課題】欠陥画素を設けずに、特定の領域に照射された放射線の検出を行うことができる放射線撮影装置、及び放射線撮影システムを提供する。【解決手段】撮影領域に光を検出するセンサ部72を含む画素74が2次元状に設けられたTFT基板66の撮影領域に、放射線が照射された領域が発光するシンチレータ71を重なるように配置し、シンチレータ71のうち放射線の検出を行う検出対象領域172に導光部材170を配置し、導光部材170により検出対象領域で発生した光を検出する。【選択図】図8
