Patent ID: 7436929

Claim:
A radiographic system, comprising: an x-ray generating section that generates X-rays; an x-ray image detecting section in which charge generating devices for converting the X-rays into charges are placed in series in a row in a horizontal direction or placed two-dimensionally; a rotary arm that rotates the X-ray generating section and the X-ray image detecting section around an object with the X-ray generating section and the X-ray image detecting section opposed to each other; a vertical transfer information holding section that previously generates and holds vertical transfer information for successively transferring the charges of the charge generating devices in accordance with a relative movement of the object with respect to the X-ray image detecting section according to the rotation of the rotary arm; a drive control section that controls drive of the X-ray image detecting section while controlling a timing at which vertical transfer is performed based on the vertical transfer information held at the vertical transfer information holding section; an exposure time deriving section that obtains a period during which the object has been exposed to the X-rays in a process of generating each charge signal output from the X-ray image detecting section in the X-ray image detecting section based on the vertical transfer information held at the vertical transfer information holding section; a correction coefficient deriving section that obtains a correction coefficient for correcting a value of an image signal obtained by being converted from each charge signal, based on the exposure time corresponding to each charge signal; and an image generating section that generates an image signal from the charge signal output from the X-ray image detecting section and the correction coefficient.