PROBLEM TO BE SOLVED: To provide an imaging area specifying apparatus, radiographic system, and imaging area specifying method, capable of suppressing progress of deterioration at a specific part of a detection area on a radiation detector.SOLUTION: The imaging area specifying apparatus is constituted so that a correlation value correlated with the amount of radiation emitted to each of a plurality of predetermined divided areas 61A divided from a detection region 61 of a radiation detector 60, is stored as correlation information, and an imaging area capable of capturing the radiological image of a predetermined size is specified while preventing variations in the amount of radiation emitted to each of the divided areas 61A in the detection region 61, on the basis of the stored correlation information.COPYRIGHT: (C)2011,JPO&INPIT【課題】放射線検出器の検出領域の特定の一部分で劣化が進行することを抑制できる撮影領域特定装置、放射線画像撮影システム、及び撮影領域特定方法を提供する。【解決手段】放射線検出器60の検出領域61を予め定められた複数の領域に区分した区分領域61A毎に、照射された放射線量に相関する相関値を相関情報として記憶し、記憶された相関情報に基づいて、検出領域61内で各区分領域61Aに照射された放射線量のばらつきを抑えつつ予め定められたサイズの放射線画像の撮影が可能な撮影領域を特定する。【選択図】図14
