To improve use convenience to the user who executes imaging work in an imaging environment where plural X-ray generating apparatuses exist, a control apparatus for controlling X-ray irradiations performed by the plural X-ray generating apparatuses has: an obtaining unit for obtaining identification information for uniquely identifying one X-ray generating unit of the plural X-ray generating units, which is specified as a control target which is allowed to emit X-rays； and a control unit for, based on the obtained identification information, controlling so that, for a period of time during which the one X-ray generating unit is specified as the control target, processes regarding the X-ray irradiations by the other X-ray generating units are restricted.
