Computertomograph

摘要

A computer tomograph apparatus of the type having a rotating frame which carriers an x-ray source and a radiation detector includes a mount for the radiation detector which resiliently seats the radiation detector on the rotating frame permitting slight displacement of the radiation detector in a direction tangent to the orbit of the detector around a patient. The resilient mounting of the radiation detector suppresses the transmission of mechanical jolts and other jarring forces from the rotating frame to the detector. Because of the resilient mounting, the weight of the radiation detector will cause a slight dislocation of the detector during a revolution. To compensate for this dislocation the rated position of the focus is determined dependent upon the detector position, so that the position of the focus can be adjusted corresponding to this detector displacement.