Eyi chusystem for generating spectral computed tomography projection data

[0047] figure 1 An embodiment of a spectral computed tomography system for generating an image of an object is shown schematically and exemplarily. The spectral computed tomography system 17 comprises a support body 1 which is rotatable about an axis of rotation R extending parallel to the z-direction. Mounted on the support body 1 is a rotating device 2 comprising an X-ray tube and adapted to provide polychromatic radiation 4 for passing through an examination zone 5 of a spectral computed tomography system 17 . In this embodiment, the radiation device 2 is adapted to provide a conical radiation beam 4 as polychromatic radiation. In another embodiment, the radiation device 2 can be adapted to provide polychromatic radiation with another beam shape, eg with a fan beam shape. The radiation 4 passes through an object (not shown), such as a patient, in an examination region 5, which in this embodiment is cylindrical. After having passed through the examination region 5, the ra...