Patent ID: 7714304

Claim:
A measuring arrangement for computed tomography, the measuring arrangement comprising: a radiation source for generating invasive radiation; a rotating device configured and disposed to enable a measurement object to be rotated about an axis of rotation of the rotating device, to cause the invasive radiation to penetrate the measurement object in a variety of directions; a detection device for detecting radiation after penetration through the measurement object; a positioning device, said positioning device having a setting device configured to set a position of the measurement object relative to said rotating device; the measuring arrangement being configured to: a) generate at least one preliminary radiation image of the measurement object from detection signals of said detection device; b) determine, from the preliminary radiation image, an image position of the axis of rotation corresponding to a radiation projection of the axis of rotation onto said detection device; and c) determine, by evaluating the at least one preliminary radiation image, whether or not, in one image plane of the preliminary radiation image, locations on the outer contours of the measurement object that are farthest apart from the axis of rotation on both sides of the axis of rotation are equidistant from the axis of rotation.