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

The gyrotrons are powerful sources of coherent radiation that can operate in both pulsed
and CW (continuous wave) regimes. Their recent advancement toward higher frequencies …

The European DEMO is a pulsed device with pulse length of 2 hours. The functions devoted
to the heating and current drive system are: plasma breakdown, plasma ramp-up to the flat …

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 …

Gyrotron oscillators (gyromonotrons) are mainly used as high power millimeter wave
sources for electron cyclotron resonance heating (ECRH), electron cyclotron current drive …

Gyrotron oscillators (gyromonotrons) are mainly used as high power millimeter wave
sources for electron cyclotron resonance heating (ECRH), electron cyclotron current drive …

A high-power 1-D phased array of 1-D leaky-wave antennas (high-power leaky-wave
phased array antenna) is proposed and investigated. This array antenna is characterized by …

Long-term options for a steady-state DEMOnstration power plant may require the availability
of gyrotrons with an operating frequency significantly above 200 GHz together with an RF …

This report presents an update of the experimental achievements published in the review
“State-of-the-Art of High-Power Gyro-Devices and Free Electron Masers”, Journal of Infrared …

The gyrotron backward-wave oscillators (gyro-BWOs) feature a continuous frequency
tunability in a single transverse mode, while the step-tunable gyrotrons are famous for their …