PROBLEM TO BE SOLVED: To provide a radiographic image pickup device capable of more suitable radiation detection.SOLUTION: The radiographic image pickup device comprises: a sensor including a sensing unit in which pixels having conversion elements to convert radiation to electric charges are disposed in matrix form, a drive circuit for driving the sensing unit, and a readout circuit for outputting an electric signal proportionate to electric charges as image data a radiation detection unit for detecting an irradiation state of radiant rays at multiple positions inside the sensing unit and a control unit for controlling the operation of the drive circuit and readout circuit according to the result of detection by the radiation detection unit. The radiation detection unit detects an irradiation state of radiant rays in at least a center region and a peripheral region inside the sensing unit, and has its detection capability in the center region set to be higher than its detection capability in the peripheral region, so that it is possible to detect radiation under various irradiation conditions with high accuracy.COPYRIGHT: (C)2014,JPO&INPIT【課題】より好適に放射線検知が可能な放射線撮像装置を提供する。【解決手段】放射線を電荷に変換する変換素子を有する画素が行列状に配置された検出部と、検出部を駆動する駆動回路と、電荷に応じた電気信号を画像データとして出力する読出回路と、を含む検出器と、検出部内の複数の位置で放射線の照射状態を検知する放射線検知部と、放射線検知部による検知結果に応じて駆動回路及び読出回路の動作を制御する制御部とを有し、放射線検知部が、少なくとも検出部内の中央領域及び周辺領域で放射線の照射状態を検知し、中央領域における検知能力を周辺領域における検知能力よりも高く設定するようにして、様々な照射条件に対して精度よい放射線検知を可能にする。【選択図】図1
