Investigation and suppression of pulse shortening problem caused by non-working mode self-excitation in an S-band long pulse relativistic klystron amplifier

Autor: Chen Zhao-Fu, Huang Hua, He Hu, Xu Zhou, Chang An-Bi, Yuan Huan, Hu Jin-Guang, Liu Zhen-Bang, Lei Lu-Rong
Rok vydání: 2014
Předmět:
Zdroj: Acta Physica Sinica. 63:238402
ISSN: 1000-3290
DOI: 10.7498/aps.63.238402
Popis: We have investigated the pulse shortening problem of relativistic klystron amplifier. It is shown that non-working mode self-excitation is an important cause of pulse shortening. Theoretical and numerical analyses show the mechanism of non-working mode self-excitation caused by the coupling between cavities. By the use of radio frequency absorbers, the problem of non-working mode self-excitation can be solved. In the experiment, the RF output power is 920 MW, the output power pulse width of the device can be increased from 77 ns to 137 ns.
Databáze: OpenAIRE