Patent ID: 9259201
Filing Date: 2016-02-16
CPC Classification: A61B

Claim Text:
1. A radiographic system comprising: a radiation source which irradiates a subject with X-ray radiation; a control device which controls a start and stop of X-ray radiation irradiation by the radiation source; a radiological image detection device having a detection panel in which pixels accumulating charge according to a reached radiation dose are arranged; a radiation dose detection sensor which detects the reached radiation dose; and an automatic exposure control unit including a comparison circuit which compares an integrated value of the reached radiation dose detected by the radiation dose detection sensor and a threshold value set beforehand, and determines whether the integrated value of the reached radiation dose reaches a target value based on the comparison result, wherein the comparison circuit continuously transmits an irradiation continuation signal which makes the radiation source continue radiation irradiation to the control device in a predetermined period until it is determined that the integrated value of the reached radiation dose reaches the target value from the start of the X-ray radiation irradiation by the radiation source, and the control device stops the X-ray radiation irradiation when the irradiation continuation signal is not received.