To provide a technique which can reduce a working load and a mistake of the operation when introducing a radiation detector, a control apparatus has: a display control unit for causing a display unit to display a selecting screen for presenting a list of registered radiation detectors and receiving a selection from the list； and an associating unit for associating in such a manner that when an unregistered radiation detector is registered, imaging information regarding a radiation imaging associated with the radiation detector selected through the selecting screen is associated with the unregistered radiation detector.
