Megavolt, Multi-Kiloamp Ka-Band Gyrotron Oscillator Experiment

摘要

A high peak power K sub a band gyrotron oscillator experiment is reported. This experiment operated at 35 GHz in a sub a TE sub 62 mode, using a 1-1.35 MeV, multi-kiloamp beam from the VEBA pulseline accelerator. The use of an apertured anode configuration provided improved beam quality compared to earlier experiments that were carried out in a foilless diode geometry. As a result, the peak power has increased to approximately 275 MW with peak efficiencies exceeding 10%. The experimental results are in reasonable agreement with the predictions of theory. Keywords: Ka band; Gyrotron; Phase locking; Gyroklystron. (jhd)