PROBLEM TO BE SOLVED: To provide a radiation imaging system capable of suppressing a possible artifact to occur in long length radiography.SOLUTION: A radiation imaging system includes multiple radiation imaging units disposed so as to overlap each other partially and spatially in view from an irradiation source, the radiation imaging unit having a radiation detection panel 2 and a housing involving the radiation detection panel 2. The radiation imaging system obtains a radiographic image on the basis of image signals from the multiple radiation imaging units. The housing of at least one radiation imaging unit D1 of the multiple radiation imaging units has a higher radiation transmission rate at a part of a region spatially overlapping other radiation imaging unit D2 than the other part of the region.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】 長尺撮影に際して発生し得るアーチファクトを抑制する。【解決手段】 放射線検出パネル2と、放射線検出パネル2を内包する筐体と、を有する複数の放射線撮像装置を、夫々の一部が放射線照射側から見て空間的に重なるように配置して、複数の放射線撮像装置からの夫々の画像信号に基づいて放射線画像を取得する放射線撮像システムにおいて、複数の放射線撮像装置のうちの少なくとも1つの放射線撮像装置D1の筐体は、他の放射線撮像装置D2と空間的に重なる一部における領域の放射線透過率が、その一部における領域とは異なる領域の放射線透過率に比べて高い。【選択図】 図2
