PROBLEM TO BE SOLVED: To equalize projection data in arrangement directions and/or channel directions in an X-ray CT system.SOLUTION: The X-ray CT system includes a correcting means for correction, wherein correction of detection sensitivity which varies according to an arrangement location in arrangement directions of a detector of an X-ray-detecting unit and to a current value of an X-ray tube supplied to an X-ray source is conducted to the projection data in at least one arrangement direction of the detector of the X-ray-detecting unit.COPYRIGHT: (C)2009,JPO&INPIT【課題】X線CT装置において、列方向及び/又はチャネル方向において、投影データの均一化を図る。【解決手段】 X線CT装置において、X線検出器の検出器素子の配列方向における配列位置及び前記X線源に供給するX線管電流値によって異なる検出感度補正を、前記X線検出器の検出器素子の少なくとも一方の配列方向の投影データに対して施す補正処理を行う補正手段を含む。【選択図】図2
