PROBLEM TO BE SOLVED: To provide a radiographic system for generating a phase contrast radiographic image of a subject including a radiation high-absorption part and a radiation low-absorption part in an area of interest in order to reliably obtain image information in the radiation low-absorption part of higher interest.SOLUTION: A radiographic system 10 for generating a phase contrast radiographic image of a subject including a radiation high-absorption part and a radiation low-absorption part in an area of interest comprises: an imaging part 12 including a radiographic image detector 30 arranged to a downstream side of the subject in a travel direction of radiation with which the subject is irradiated, and a plurality of radiation detecting elements 36 each of which is arranged dispersedly to a downstream side of the subject in a plane in parallel with an image receiving plane of the radiographic detector and detects a dose of incident radiation therein an element extraction part 37 for extracting at least one radiation dose detection element in which radiation that has transmitted through the absorption part is made incident and a control part 20 for controlling exposure based on a radiation dose detected by the radiation dose detection element that has been extracted by the element extraction part.COPYRIGHT: (C)2014,JPO&INPIT【課題】関心領域に放射線高吸収部及び低吸収部を含む被写体の放射線位相コントラスト画像を生成する放射線撮影システムにおいて、より関心の高い放射線低吸収部の画像情報を確実に得る。【解決手段】放射線高吸収部及び低吸収部を関心領域に含む被写体の放射線位相コントラスト画像を生成する放射線撮影システム10は、前記被写体に照射される放射線の進行方向に前記被写体より下流に配置される放射線画像検出器30、及び前記被写体より下流にあって前記放射線画像検出器の受像面と平行な面内に分散して配置され、各々が入射する放射線の線量を検出する複数の放射線検出素子36を含む撮影部12と、前記低吸収部を透過した放射線が入射する少なくとも一つの線量検出素子を抽出する素子抽出部37と、前記素子抽出部によって抽出された線量検出素子により検出される検出線量に基づいて露光制御する制御部20と、を備える。【選択図】図1
