Patent ID: 7286645

Claim:
An x-ray device comprising: an x-ray tube having a rotary anode that is rotatable around a rotational axis, and a cathode that emits an electron beam onto the rotary anode to generate an emitted x-ray beam from a focal spot on the rotary anode, the emitted x-ray beam having a region thereof selected from the group consisting of a region of highest image resolution and a region of highest image definition; a slit-shaped diaphragm disposed in a path of said emitted x-ray beam that gates a fan-shaped x-ray beam from the emitted x-ray beam; and a mounting arrangement for the x-ray tube that tilts the x-ray tube relative to the focal spot to move the fan-shaped x-ray beam through an examination region substantially in a direction of the rotational axis of the rotary anode, said mounting arrangement tilting the x-ray tube relative to the focal spot so that the fan-shaped x-ray beam is always gated from said region during movement of the fan-shaped x-ray beam through the examination region, and said mounting arrangement additionally rotating said x-ray tube around a first axis proceeding through said focal spot and perpendicular to said examination region, and around a second axis disposed in a plane of said fan-shaped x-ray beam and perpendicular to said rotational axis of said rotary anode, said second axis being disposed outside of said focal spot at a side of said focal spot facing away from said examination region.