New results of megawatt power gyrotrons development

During last year several new steps in gyrotrons development have been done at IAP/GYCOM. The main ITER requirements to a gyrotron have been demonstrated: 170 GHz frequency, 1MW power, 1000 seconds pulse duration, 53% efficiency. The operation regime of 1.2 MW was found for 100 second pulses. For a multi-frequency gyrotron a novel scheme for a tuneable window was developed. Additionally some other new gyrotrons were shipped and installed at running plasma installations.