Megawatt Power Gyrotron with Generation Regimes at the 1 st and 2 nd Cyclotron Harmonics

The concept of a gyrotron capable of generating megawatt power in CW or long-pulse regimes with excitation at both the 1st and 2nd harmonics of the gyrofrequency is theoretically developed. For selective excitation at the 2nd cyclotron harmonic under conditions of a significant excess of the operating current over the threshold, we propose to lock the gyrotron with...