Radiation source for a radiation-based image recording device, radiation-based image recording device and method for determining an asymmetrical power input profile of a focal spot of a radiation source

摘要

A radiation source (4) for a radiation-based image recording device (1) comprising an electron emitter (5) for generating a focal spot (12) for X-ray generation on a rotary anode (8), means for generating an asymmetrical power input profile of the focal spot (12) parallel to the direction of movement of the focal spot Rotary anode (8) are provided, characterized in that an asymmetric, in particular one-sided thinner, electron emitter (5) is provided for generating the asymmetrical power input profile.