| 摘要 |
<p>Clearly notifying that a setting error of an imaging plane of a radiation image detector is on the increase. For a radiation image detector having an imaging plane with pixels, disposed in a two-dimensional matrix, for storing charges by receiving radiation according to an amount of radiation received and used to receive radiation transmitted through the same subject each time the detector is shifted and changed in position along a predetermined shift axis, a setting error of the imaging plane, i.e., an inclination of the two-dimensional matrix with respect to the shift axis or the like is detected a plurality of times with the passage of time and, when a fluctuation range of a plurality of setting errors so detected exceeds a predetermined acceptable range, an indication or an alarm so indicating is given.</p> |
