A NEW KLYSTRON MODULATOR FOR XFEL BASED ON PSM TECHNOLOGY

摘要

Thomson Broadcast & Multimedia has been awarded with a contract from DESY to design and build a prototype klystron modulator for the XFEL project in Germany. This modulator will be built in pulse step modulator (PSM) technology. Such technology achieves a maximum flatness of the pulse without tuning of any high power components. The modulator will also have a built-in power regulation in order to ensure a constant power consumption and to prevent voltage flicker of the mains. The paper gives an overview of the principles of the modulator and presents the status of the design. It also includes simulation results showing the expected performance.