PROBLEM TO BE SOLVED: To obtain an X-ray image with a small offset correction error even under the environment of generating variation of pressure information to be applied to an X-ray sensor part.SOLUTION: A radiographic apparatus includes: an X-ray generation part 110 for irradiating a subject H with X-rays 111 an X-ray sensor part 120 for detecting the X-rays transmitted through the subject H in the state that the subject H is irradiated with the X-rays 111 from the X-ray generation part 110 as the X-ray images, and detecting an offset image in the state of not irradiating the subject H with the X-rays 111 from the X-ray generation part 110 and a control part 140. In the control part 140, the variation of the pressure information applied to the X-ray sensor part 120 is detected, and when a pressure variation coefficient based on the detected variation of the pressure information is smaller than a threshold, the X-ray image and the offset image are acquired from the X-ray sensor part 120 and the offset correction of the acquired X-ray images is performed using the acquired offset image.COPYRIGHT: (C)2013,JPO&INPIT【課題】X線センサ部に加わる圧力情報の変動が生じる環境下であっても、オフセット補正誤差の少ないX線画像が得られるようにする。【解決手段】被写体HにX線111を照射するX線発生部110と、X線発生部110から被写体HにX線111が照射された状態で被写体Hを透過したX線をX線画像として検出するとともに、X線発生部110から被写体HにX線111が照射されない状態でオフセット画像を検出するX線センサ部120と、制御部140を備え、制御部140では、X線センサ部120に印加される圧力情報の変動を検出し、検出した圧力情報の変動に基づく圧力変動係数が閾値よりも小さい場合に、X線センサ部120からX線画像とオフセット画像を取得し、取得したオフセット画像を用いて、取得したX線画像のオフセット補正を行う。【選択図】図1
