PROBLEM TO BE SOLVED: To provide a radiation imaging system capable of preventing a subject from unwanted exposure to radiation while acquiring images suitable for diagnosis by eliminating positional deviation between an FPD and an irradiation range caused due to warpage of a column for supporting a radiation source.SOLUTION: The X-ray imaging system 1 is capable of reliably eliminating the positional deviation between a detection surface 4a of the FPD 4 and the irradiation range of X-ray which is caused due to the warpage of the column 5 for supporting an X-ray tube 3. That is, in the system, the positional relationship between the detection surface 4a of the FPD 4 and the irradiation range is adjusted for the longitudinal direction of a top plate 2 in accordance with the tilting of the column 5. With the configuration, the positional deviation between the detection surface 4a of the FPD 4 and the X-ray irradiation range is reliably eliminated and images suitable for diagnosis can be acquired. Further, this system can avoid unwanted exposure to radiation of a subject M.COPYRIGHT: (C)2013,JPO&INPIT【課題】放射線源を支持する支柱の撓みにより生じるFPDと照射範囲との位置ズレを取り除くことにより、診断に適した画像を取得しつつ、被検体の無用な被曝を避けることができる放射線撮影装置を提供する。【解決手段】本発明によれば、X線管3を支持する支柱5の撓みにより生じるFPD4の検出面4aとX線の照射範囲との位置のズレを確実に取り除くことが可能なX線撮影装置1を提供できる。すなわち、本発明によれば、支柱5の傾斜に応じてFPD4の検出面4aと照射範囲との位置関係を天板2の長手方向について調整するようになっている。この様にすると、FPD4の検出面4aとX線の照射範囲との位置のズレが確実に取り除かれ、診断に適した画像が取得できる。また、本発明によれば、被検体Mの無用な被曝を避けることができる。【選択図】図1
