The 50MW S-band klystron development in IECAS

The Institute of Electronics, Chinese Academy of Sciences (IECAS) is developing the 50MW S-band klystron for use in linear accelerators. A klystron structure of six-cavity and single output window is adopted. The first prototype was fabricated and tested, and the test results show the design of electron optics and RF system is basically successfully. This paper describes the development and status of this device including design ideas, simulation results and recent progress.