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The results of stabilization of both output power and frequency by double PID feedback control of the acceleration and anode voltage in the 460 GHz Gyrotron FU CW GVI (“Gyrotron FU CW GO-1” as an official name in Osaka University) are presented. The experiment based on the cyclotron frequency modulation by modulation of acceleration voltage of beam electrons and on pitch factor modulation by modulation...
The results of both gyrotron output power and frequency stabilization by double PID feedback control of acceleration voltage and anode voltage have been presented. The second harmonic 460 GHz Gyrotron with isolated collector has been used in the stabilization experiment. In the long term experiment, the frequency stabilization was better than 10−6 and the power stabilization was better than ±1%.
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