Design and operation of a high-harmonic gyro-klystron amplifier

Abstract

A gyro-klystron amplifier has been designed for operation at the sixth cyclotron harmonic. The system should exhibit 36 dB gain for 2.5 A rf-accelerated electron beams. Approximately 5 W are required for complete bunching to yield 20 kV?. The initial experiments, performed in the low current regime, have verified the theoretical I2 dependence of gain.