Patent ID: 7203268

Claim:
An X-ray CT system comprising: an X-ray generating device for generating a plurality of cone beam X-radiations that passes through different respective ones of a plurality of slabs each having a width in a body-axis direction, each of said slab widths is permissible for radiography during one scan by one cone beam X-radiation, wherein said slabs are joined in the body-axis direction and the plurality of cone beams X-radiations are asynchronously irradiated; an X-ray detecting device for detecting a two-dimensional distribution of intensities exhibited by all of the plurality of cone beam X-radiations having passed through the plurality of slabs; an acquiring device for acquiring a plurality of views of projection data, which represents the plurality of slabs, on the basis of detection signals sent from said X-ray detecting device; and a reconstructing device for reconstructing an image according to the projection data.