Anode device, useful for X-ray tube, comprises anode body comprising focal spot range, receiving device that is attached at anode body in area adjacent to focal spot range, and latent heat storage element arranged in receiving device

摘要

The anode device comprises an anode body (2), which comprises a focal spot range (3) and is adapted to produce an X-ray radiation at an impinging of an electron ray on the focal spot range, a receiving device (4), which is attached at the anode body in an area adjacent to the focal spot range, and a latent heat storage element (4a), which is arranged in the receiving device. The anode body is a rotating anode plate for a rotating anode X-ray tube. The focal spot range is a focal path circulating in an outer region of the rotating anode plate on a first surface of the rotating anode plate. The anode device comprises an anode body (2), which comprises a focal spot range (3) and is adapted to produce an X-ray radiation at an impinging of an electron ray on the focal spot range, a receiving device (4), which is attached at the anode body in an area adjacent to the focal spot range, and a latent heat storage element (4a), which is arranged in the receiving device. The anode body is a rotating anode plate for a rotating anode X-ray tube. The focal spot range is a focal path circulating in an outer region of the rotating anode plate on a first surface of the rotating anode plate. The receiving device comprises: an annular structure, which is arranged on a second surface of the rotating anode plate in an outer region of the rotating anode plate opposite to the first surface; an outward dense housing; and a foam material with pores taken up in the housing. The latent heat storage element comprises a phase change material that is injected into the pores of the foam material, hollow spheres taken up in the housing, where the spheres are filled with the phase change material, and composite particles, which comprise a core from the phase change material and a casing from an inert material opposite to the phase change material. The phase change material comprises a metallic alloy such as a eutectic alloy, a salt hydrate, a carbonate mixture, an ionic liquid or paraffin. The phase change material is coupled with the rotating anode plate to receive heat that is generated by an irradiation of the rotating anode plate with the electron ray. An independent claim is included for a method of producing an anode device.