Medical X=ray computer tomograph

摘要

The X-ray computer tomograph has an X-ray generator which emits a pyramid-shaped X-ray bundle. The X-ray bundle hits a detector composed of several parallel detector lines. Each detector line consists of a row of detector elements. The X-ray bundle can be rotated about a system axis, and the detector signals formed by different projections are sent to a processor. The processor calculates an image of the object under investigation. The detector lines are at different distances from the X-ray generator and can be positioned in the direction of the system axis so that they overlap. Near focus detector lines blend into X-radiation falling on far focus detector lines.