Patent ID: 7676024

Claim:
An X-ray imaging apparatus comprising: an imaging unit, taking an X-ray image obtained by X-ray irradiation; an X-ray detecting unit, including a photodiode which is provided in addition to the imaging unit and outputting, when X-rays are irradiated, an X-ray detection signal over an irradiation period; an operation controlling unit, generating, based on the X-ray detection signal from the X-ray detecting unit, a trigger indicating an imaging start timing for an X-ray image and using the trigger to perform operation controlling of the imaging unit for taking the X-ray image; and a signal cable, containing, within a tube, one or a plurality of each of a detection signal line, transmitting the X-ray detection signal from the X-ray detecting unit to the operation controlling unit, a controlling signal line, transmitting a controlling signal for operation controlling of the imaging unit from the operation controlling unit to the imaging unit, and an image signal line, transmitting image signals, resulting from imaging by the imaging unit, from the imaging unit to the operation controlling unit, wherein in the signal cable, the detection signal line is disposed so as to be surrounded by any of the other signal lines among the detection signal line, the controlling signal line, and the image signal line.