| 摘要 |
<p>Provided is a radiation imaging device and radiation imaging system in which the intervals between the capturing of images can be shortened when images are successively captured or when long-length images are captured, and in which offset caused by lag can be accurately removed from image data. Prior to capturing a radiation image, a control means (22) of a radiation imaging device (1, 100) performs offset-correction value read-out processing (E) after leaving each radiation detection element (7) for a prescribed length of time in a state where no radiation is directed thereon. Immediately thereafter, the control means (22) performs lag read-out processing (G1) to read out as reference lag data (Lgbase) the charge remaining in each radiation detection element (7). Then, every time radiation imaging is performed, the device respectively performs image read-out processing (B), wherein the charge accumulated in each radiation detection element (7) in accordance with the amount of radiation directed thereon is read out as image data (d(n)), and lag read-out processing (G), wherein lag data (Ld) is read out immediately after the image read-out processing (B), in the same manner and with the same timing as the offset-correction value read-out processing (E) and the immediately subsequent lag read-out processing (G1).</p> |
