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

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 …

For the development of a DEMOnstration Fusion Power Plant the design of auxiliary heating
systems is a key activity in order to achieve controlled burning plasma. The present heating …

Gyrotron R&D within the EUROfusion Work Package Heating and Current Drive (WPHCD) is
addressing the challenging requirements posed on gyrotrons by the European concept for a …

The engineering design and R&D of auxiliary heating systems and their sub-systems are a
key activities in the frame of the present conceptual design phase for a first of a kind …

Metallic cavity with distributed longitudinal corrugations is proposed and studied for the use
in a subterahertz second-harmonic gyrotron. The corrugated conducting walls are treated as …

This article presents the realistic initial design studies of a 300-GHz, 1-MW, conventional-
cavity gyrotron for its probable application in the next-generation thermonuclear fusion …

In this paper, we present the RF behavior of conventional cylindrical interaction cavity for
240 GHz, 1 MW gyrotron for futuristic plasma fusion reactors. Very high-order TE mode is …

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 …

The primary problem that gyrotrons encounter is mode competition during their
development, especially multi-mode multi-frequency gyrotrons. In this paper, the influence of …