| 摘要 |
A radiographic imaging system comprises: a grid located opposite a surface of a radiographic image data detector to remove scatter radiation occurring when a radiation penetrates the subject; a grid moving mechanism for moving the grid at least in a direction; control means for acquiring first radiographic image data with the radiographic image data detector in a preset imaging time while moving the grid with the gird moving mechanism; and anomaly detection means for calculating a displacement of a grid image in the first radiographic image data based upon a position in which the grid is located and a displacement of the grid effected by the grid moving mechanism during the preset imaging time and detecting a defect in the first radiographic image data having a length agreeing with the calculated displacement of the grid image.
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