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Experimental demonstration of the third cyclotron harmonic excitation in technological gyrotron with delayed
A P Fokin1, A S Sedov1, A S Zuev1
1Federal Research Center Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS), 46 Ul'yanov Street, 603950 Nizhny Novgorod, Russia.
The Review of Scientific Instruments
|March 2, 2020
Abstract:
The excitation and effective selection of modes at high harmonics of the cyclotron frequency are experimentally demonstrated using a delayed feedback into the gyrotron. The operation at the third cyclotron harmonic at the frequency of 40.5 GHz with the output power of 3 kW and efficiency 8% is observed in a continuous wave gyrotron with an oil-cooled magnet with a field of 0.5 T in the interaction space.

