In many tokamak and stellarator experiments around the globe that are investigating energy
production via controlled thermonuclear fusion, electron cyclotron heating and current drive …

This paper presents a review of the experimental achievements related to the development
of high-power gyrotron oscillators for long-pulse or CW operation and pulsed gyrotrons for …

The upgraded European 1-MW, 170-GHz continuous wave (CW) industrial prototype
gyrotron (TH1509U) for electron cyclotron resonance heating and current drive in ITER was …

For a few years the multi-physics modelling of the resonance cavity (resonator) of MW-class
continuous-wave gyrotrons, to be employed for electron cyclotron heating and current drive …

Considering the recent understanding of the physics of electron trapping mechanisms taking
place in the magnetron injection gun (MIG) region of gyrotrons and the sensitivity of the …

An iterative procedure is described, which models the influence of the thermal expansion of
the gyrotron cavity on the expected gyrotron performance. It is a multiphysics simulation …

Abstract The European Gyrotron Consortium (EGYC) is developing the European 1 MW, 170
GHz Continuous Wave (CW) industrial prototype gyrotron for ITER in cooperation with …

Lossy dielectric materials are used in gyrotron beam tunnels to suppress possible parasitic
oscillations by raising their starting currents. The dependence of the overall losses of the …

An immediate turn-ON time 95-GHz long pulse gyrotron with water cooled dc copper
electromagnet is presented. The gyrotron operates at TE02 mode and second harmonic with …

High-power, high-frequency gyrotrons are the only promising sources for the electron
cyclotron resonance heating and current drive (ECRH&CD) in the present thermonuclear …