Patent ID: 7983384

Claim:
An X-ray computed tomography arrangement, comprising: an X-ray detector arc of part or full circular design made of individual detectors arranged next to one another; an electron beam generator configured to generate, focus and deflect an electron beam within a vacuum chamber; at least one target arranged within the vacuum chamber for decelerating the electron beam and for generating X-rays; the X-ray detector arc and the at least one target being arranged around an examination cross section so that an X-ray foci generated on a surface of the target by an electron beam generated by the electron beam generator and guided by beam deflection, and the active detector elements lie within an axial plane relative to a system axis; the X-ray detector arc being arranged behind the target in the radial direction relative to the system axis, so that every X-ray beam extending from an X-ray foci on the target to a detector element of the X-ray detector arc passes through the target lying in front, relative to the system axis, of an impact point on the X-ray detector arc in a region of angular overlap of target and X-ray detector arc; the target is composed of a target body which is preferably formed by a material with a low atomic number and a high heat storage capacity or thermal conductivity; and an electron-decelerating material layer, preferably composed of a refractory material with a high atomic number, is applied to the side of the target body facing the electron beam.