Development of high peak power klystron in IECAS

Since 1970s the Institute of Electronics, Chinese Academy of Sciences (IECAS) has successively developed S-band 5 MW, 20 MW and 50 MW klystrons for accelerators. Currently, we are developing the S-band 100 MW klystron. In this paper, the specifications of our typical high peak klystrons are presented and the key technical problems for developing this kind of klystron are discussed.