Patent ID: 7677800

Claim:
A radiological imaging apparatus, comprising: a radiation source that generates radiation irradiating a subject; a radiation detection section that detects radiation from the radiation source that passes through the subject; a signal detection section that detects signals from a plurality of signal generating sections disposed on the radiation detection section in a manner such that each signal generating section is in a different location; a signal comparison section that compares the signals from the plurality of signal generating sections detected by the signal detection section; a positional relationship judgment section that makes a judgment as to whether a positional relationship between the radiation detection section and the radiation source is a predetermined positional relationship based on a comparison result from the signal comparison section; a position control section that controls a position of at least one of the radiation source and the radiation detection section to maintain the positional relationship between the radiation source and the radiation detection section as the predetermined positional relationship based on a judgment result from the positional relationship judgment section; a position control holding section that holds the radiation source and the radiation detection section in the position set by the position control section and fixes the positional relationship between the radiation detection section and the radiation source after the position control section causes the positional relationship to be the predetermined positional relationship; a notification section that provides notification in a case where the positional relationship judgment section makes a judgment that the positional relationship is not the predetermined positional relationship while the position control holding section is holding the radiation source and the radiation detection section in the position set by the position control section; a position judgment section that makes a judgment as to whether the radiation source and the radiation detection section can be held in the predetermined positional relationship based on a comparison result from the signal comparison section and a range in which the radiation source and the radiation detection section can move; and a warning section that warns a user in a case where the position judgment section makes a judgment that the radiation source and the radiation detection section cannot be held in the predetermined positional relationship.