RADIOGRAPHIC APPARATUS

To provide a radiographic apparatus which is added with an effective region index indicating an effective region and a lighting field index indicating a lighting field region in an identifiable manner.SOLUTION: A radiographic apparatus comprises: an imaging unit which has an effective region including pixels generating a radiation image on the basis of the irradiated radiation and a lighting field region including pixels measuring the dosage of the radiation; and a control unit which outputs a signal for controlling irradiation of the radiation with comparison between the measured dosage and a threshold. An effective region index indicating the effective region and a lighting field index indicating the lighting field region are added to a radiation incidence surface of the imaging unit in an identifiable manner.SELECTED DRAWING: Figure 1 【課題】有効領域を示す有効領域指標と採光野領域を示す採光野指標とが識別可能に付与された放射線撮影装置を提供すること。【解決手段】放射線撮影装置は、照射された放射線に基づいて放射線画像を生成する画素を含む有効領域と、放射線の線量を計測する画素を含む採光野領域とを有する撮影部と、計測された線量と閾値との比較により放射線の照射を制御するための信号を出力する制御部と、を有する。撮影部の放射線入射面に、有効領域を示す有効領域指標と、採光野領域を示す採光野指標とが識別可能に付与されている。【選択図】 図１