Kj. Hendricks et al., EXTRACTION OF 1 GW OF RF POWER FROM AN INJECTION-LOCKED RELATIVISTIC KLYSTRON OSCILLATOR, Physical review letters, 76(1), 1996, pp. 154-157
Initial results of extracted power from a moderately modulated intense
relativistic electron beam are reported. The modulation circuit is op
erated as a relativistic klystron oscillator frequency locked to an ex
ternal oscillator. A 40% modulated electron beam has yielded more than
1 GW of rms power to a vacuum load and also radiated through an anten
na. The ratio of the rf power to the intense electron beam power is ap
proximately 20%.