| 摘要 |
The present invention relates to the generation of multiple energy X-ray radiation. In order to provide multiple energy X-ray radiation with increased switching frequencies, a rotating anode (10) for an X-ray tube is provided with an anode body (12), a circular focal track (14), and an axis of rotation (16). The focal track is provided on the anode body and comprises at least one first focal track portion (18) and at least one second focal track portion (20). Transition portions (22) are provided between the at least one first and second focal track portions. The at least one first focal track portion is inclined towards an X-ray radiation projection direction (24) of the X-ray tube. The at least one second focal track portion is divided in a direction (26) transverse to the radial direction and comprises a primary sub-portion (28), which is inclined towards the X-ray radiation projection direction, and a secondary sub-portion (30), which faces less towards the X-ray radiation projection direction than the primary sub-portion. The transition portions are provided such that a direction of X-ray radiation generated at the surface of the transition portions is different than the X-ray radiation projection direction. |
