PROBLEM TO BE SOLVED: To provide a radiographic imaging device that suppresses the effect of noise caused by electromagnetic waves from a power supply unit, and accurately detects irradiation of radiation.SOLUTION: A radiographic imaging device includes a plurality of pixels for radiation detection 32A for detecting radiation arranged in an imaging area 31, uses different detection algorithm for an area 33A that is close to a DC/DC converter 71 and an area 33B that is far from the DC/DC converter 71, and detects irradiation of radiation based on the detection result by each of the pixels for radiation detection 32A.COPYRIGHT: (C)2012,JPO&INPIT【課題】電源部から照射される電磁波の影響によるノイズの影響を抑えて放射線の照射を精度よく検知できる放射線画像撮影装置を提供する。【解決手段】放射線を検出する放射線検出用画素32Aを撮影領域31に複数配置し、DC/DCコンバータ71に近い領域33Aと離れた領域33Bで検出アルゴリズムを変えて放射線検出用画素32Aの検出結果に基づき放射線の照射の検知を行う。【選択図】図9