Patent ID: 6937697

Claim:
An X-ray data collecting apparatus comprising: an X-ray emitting/detecting device having an X-ray emitting apparatus including an X-ray tube for emitting a fan-shaped X-ray beam and an X-ray detection apparatus including a plurality of detector element rows in a thickness direction of said fan-shaped X-ray beam, in each of which rows a plurality of X-ray detector elements are arranged in an extent direction of said fan-shaped X-ray beam, said X-ray detection apparatus disposed to face said X-ray emitting apparatus interposing a subject, said X-ray emitting/detecting device rotating around said subject; a first integrating device for periodically executing sequential integration on detected signals from a plurality of X-ray detector elements corresponding to measurement channels in said X-ray detection apparatus at a constant time difference over a constant time period longer than said time difference; a second integrating device for periodically executing sequential integration detected signals from a plurality of X-ray detector elements corresponding to reference channels in said plurality of detector element rows in said X-ray detection apparatus at the same time difference as said constant time difference over the same time period as said constant time period; and a correcting device for correcting X-ray-dose signals integrated by said first integrating device by signals integrated by said second integrating device that are integrated at the same time as the signals integrated by said first integration device, respectively.