US Patent 7129499 Radiographic apparatus and radiographic method

A radiographic apparatus includes a radiation irradiating unit for applying radiation; a radiation imaging unit, including a plurality of imagers, for converting the radiation to image data; a determining unit for determining whether noise caused by residual charge is produced, from the distribution of the residual charge in the radiation imaging unit based on the image data; and a controlling unit for changing a driving state of the radiation imaging unit based on the determination result.