"ROENTGENROEHRE"

The invention relates to X-ray tubes for producing body section images using a scanning X-ray beam, which is generated on an annular area of an anode body. In addition, grid-controlled cathodes are situated at a distance opposite the anode, and the grids are cleared one after the other in a sequence corresponding to the scanning speed (image number and exposure time). In order to increase the load capacity, the annular area is pivoted about an axis on which the centres of the area and of the cathodes lie. Thus, independently of the production of the images, the speed can be brought into line with that which is used in rotating anode X-ray tubes and at which there is an optimum distribution of the developing heat. An X-ray tube according to the invention can be used universally, because individual cathodes can also be connected. It is particularly suitable for producing X-ray images using the zonoscopy procedure.