Patent ID: 7554070

Claim:
A control apparatus for controlling a sensor which detects radiation from a radiation-generation device and generates an electrical charge based on the detected radiation, the control apparatus comprising: a determination unit configured to determine a time when at least one electrical charge of the sensor is read based on information about a position of an irradiation area of the sensor, the irradiation area being an area of the sensor irradiated with the radiation, so that a time period during which at least one electrical charge of a non-irradiation area of the sensor is read, the non-irradiation area being an area of the sensor not being irradiated with radiation, overlaps an irradiation time period during which irradiation of the irradiation area with the radiation is performed, and so that a time period where at least one electrical charge of the irradiation area of the sensor is read does not overlap the irradiation-time period; and a control unit configured to control reading of the electrical charge of the sensor based on the time at which the electrical charge of the sensor is read, the time being determined by the determination unit.