Repetitive operation of an S-band, short pulse relativistic klystron amplifier

Huang, H., Feng, D-C, Luo, G-Y, Cheng, Z-G, Lei, L-R, Liao, Y., Zhang, Y-J, Yu, A-M, Tan, J., Yang, Z-B, Jin, X. and Meng, F-B (2007) Repetitive operation of an S-band, short pulse relativistic klystron amplifier. Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics, 31 (3). pp. 288-291.

Abstract

The operation of a repetitively pulsed relativistic klystron amplifier at 100Hz has been reported. The electron beam was reproducibly modulated to >74%. Using a 700kV, 6.5kA, 25ns electron beam and a 500kW Magnetron as inputs, we extracted 1.2GW radiation power in 20ns FWHM pulses at 2.95GHz. The average power is 2.4kW. The efficiency is 24%, and the gain is about 34dB. Limitations attributing directly to the repetitive pulsing at these levels have not been observed.