| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent deterioration and malfunction of a non-destructive readable FPD (flat panel detector), and to extend the life of the FPD. <P>SOLUTION: The radiographic apparatus includes: the FPD capable of non-destructively reading an X-ray image; a transmitting pixel detection part 82 for detecting the pixel value of transmitting pixels from the X-ray image non-destructively read on the way of X-ray irradiation; an arrival predicted electric charge amount calculation part 83 for calculating the arrival predicted electric charge amount of the transmitting pixels when the X-ray irradiation is finished; a radiography condition calculation part 84 for comparing the arrival predicted electric charge amount with a prescribed threshold, and calculating a new radiography condition for controlling an X-ray source so that signal charge accumulated in the transmitting pixels is the prescribed threshold at the time of termination of the X-ray irradiation if the arrival predicted electric charge amount exceeds the prescribed threshold; and an X-ray source control device 19 for feedback-controlling the X-ray source so that X rays are emitted based on the new radiography condition on the way of the X-ray irradiation based on the original radiography condition. <P>COPYRIGHT: (C)2013,JPO&INPIT |
