Abstract: A slide bearing for a rotating anode has a stationary bearing part, and multiple rotatable bearing parts are arranged concentrically around the stationary bearing part or within the stationary bearing part. The bearing parts have bearing surfaces between which are located bearing gaps filled with a fluid medium. The sliding friction of slide bearings can be markedly lowered with fluids given rotation frequencies greater than 200 Hz. At the same time the excellent heat dissipation is retained.

Abstract: An x-ray radiator has a housing containing a fluid coolant wherein a rotating bulb x-ray tube is rotatably seated, the rotating bulb x-ray tube having an evacuated vacuum housing containing a cathode and an anode, with the anode forming a wall of the vacuum housing and having an exterior charged by the coolant. The anode has a profiling at its exterior that enlarges the surface area contact between the exterior of the anode and the coolant. The profiling can be in the form of at least one channel proceeding from as a spiral from a central region of the anode toward its periphery.

Abstract: An x-ray generating system has an x-ray source arranged in a coolant-filled housing, and a phase change store which contains a phase change material disposed in the coolant in the housing.

Abstract: A computed tomography system has a gantry rotating around a patient acceptance space in a stationary gantry housing, the gantry carrying an x-ray radiator connected to a cooling device. The x-ray tube is a directly cooled rotating bulb tube whose coolant serves as an intermediate heat store and which is cooled in standstill periods of the gantry by a likewise co-rotating heat exchanger via a coolant pump.

Abstract: An x-ray radiator has a rotary-bulb tube, whose vacuum enclosure rotates inside a radiator housing, which is filled with a liquid cooling medium, and a cooling medium conducting body is arranged between the vacuum enclosure and the radiator housing, at a distance from both of these. The cooling medium conducting body produces a flow of the cooling medium along the vacuum enclosure in the inner gap and a return flow of the cooling medium along the radiator housing in the outer gap, promoted by the rotation of the rotary-bulb tube.

Abstract: An x-ray radiator has a rotating bulb tube whose vacuum housing rotates within the radiator housing filled with a fluid coolant, as well as with an external heat exchanger for the cooling of the coolant, with the coolant admission connector and the coolant discharge connector for the coolant conducted through the external heat exchanger without a circulating pump arranged at respective positions of the radiator housing at which a lower pressure and a higher pressure are generated by the rotation of the rotating bulb.