| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable an electron beam system of an X-ray tube to operate in a wide dynamic range of emission. <P>SOLUTION: A method for operating an electron beam system is provided. Further, an electron beam system, an X-ray tube (300) and a CT system that implement the presented method are also described. The method includes generating an electron beam in an X-ray tube (300) in an imaging system. Additionally, a current configuration corresponding to a particular view of the imaging system is identified. If the identified current configuration is within a predetermined range, a duty cycle of the electron beam for the particular view of the imaging system is modulated using pulse width modulation. Further, the modulated electron beam is focused towards a target. <P>COPYRIGHT: (C)2012,JPO&INPIT |
