Rotary anode, X-ray tube and arrangement with an X-ray tube and method for producing a rotor of a rotary anode

摘要

The invention provides a rotary anode (4) for an X-ray tube (1) having a rotor (7) for driving the rotary anode (4), the rotor (7) having a flange (14) connected to a shaft (6) of the rotary anode (4) can be coupled. The rotor comprises: - a tubular, magnetic return (15), the front side with the flange (14) is integrally connected, and - a concentric with the magnetic return (15) arranged, tubular squirrel cage rotor (16), with the magnetic feedback (15) and the flange (14) is connected cohesively and without gaps. It is advantageous that the materials of the three components of the rotor (7) can have different properties, such as a high conductivity for the squirrel-cage rotor, good magnetic properties for the magnetic return and a compensation of the expansion coefficient and an improvement of the corrosion behavior of the flange. There is no residual gap between the magnetic feedback and the squirrel cage rotor.