Abstract: An x-ray tube includes a source for releasing electrons and an anode head with a central axis. A target is formed on an end face of the anode head, on which target during operation the electrons impinge in an excited region. The anode head provides a flow path for a cooling fluid, which flow path leads from at least one inlet connection via a radially outer portion, further via a cooling gap, and further via a radially inner portion to at least one outlet connection. The excited region of the target is essentially annular, where in a region of the anode head opposite the excited region of the target, a local height of the cooling gap increases continuously from radially outside to radially inside. The x-ray tube can be operated at a higher power and/or with less wear.

Abstract: An X-ray tube has a cathode housing having a radiation exit window, a cooled anode, a hot cathode, an insulation body, a supply line for coolant to the anode and a discharge line for coolant from the anode. The supply and discharge lines have a plurality of turns in the insulation body. The potted body has an inner and outer mold. The anode, the cathode housing and the potted body are fastened on the ceramic body. At least one plastic directing body aligns the hoses separated from the outer and inner mold. The potting space is filled with a plastic potting compound in a cured state so that the intermediate spaces between the turns on the one hand and the outer mold and the inner mold on the other hand are occupied by the plastic of the at least one directing body and/or the plastic of the potting compound.

Abstract: An X-ray tube has a cathode housing having a radiation exit window, a cooled anode, a hot cathode, an insulation body, a supply line for coolant to the anode and a discharge line for coolant from the anode. The supply and discharge lines have a plurality of turns in the insulation body. The potted body has an inner and outer mold. The anode, the cathode housing and the potted body are fastened on the ceramic body. At least one plastic directing body aligns the hoses separated from the outer and inner mold. The potting space is filled with a plastic potting compound in a cured state so that the intermediate spaces between the turns on the one hand and the outer mold and the inner mold on the other hand are occupied by the plastic of the at least one directing body and/or the plastic of the potting compound.