High-power gyrotrons for electron cyclotron heating and current drive

MKA Thumm, GG Denisov, K Sakamoto… - Nuclear Fusion, 2019 - iopscience.iop.org
In many tokamak and stellarator experiments around the globe that are investigating energy
production via controlled thermonuclear fusion, electron cyclotron heating and current drive …

Toward the first continuous wave compatible multistage depressed collector design for high power gyrotrons

BF Ell, C Wu, G Gantenbein, S Illy… - … on Electron Devices, 2023 - ieeexplore.ieee.org
The multistage depressed collector (MDC) is essential to significantly increase the overall
efficiency of the gyrotron. To date, a short pulse (SP) MDC prototype system has been …

Overview of recent gyrotron R&D towards DEMO within EUROfusion work package heating and current drive

KA Avramidis, G Aiello, S Alberti, PT Brücker… - Nuclear …, 2019 - iopscience.iop.org
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 …

New trends of gyrotron development at KIT: An overview on recent investigations

G Gantenbein, K Avramidis, S Illy, ZC Ioannidis… - Fusion Engineering and …, 2019 - Elsevier
Since many years KIT is strongly involved in the development of high power gyrotrons for
use in ECRH. KIT is pursuing two development lines:(i) the conventional, hollow cavity …

Conceptual design of a modular EC heating system for EU-DEMO

A Bruschi, JP Hogge, J Jelonnek, D Strauss… - Nuclear …, 2024 - iopscience.iop.org
Abstract The European DEMO (EU-DEMO) reactor studies within EUROfusion aim to
develop a fusion power plant concept. The large tokamak device needs an auxiliary heating …

Gyrotron multistage depressed collector based on E× B drift concept using azimuthal electric field. II: Upgraded designs

C Wu, IG Pagonakis, D Albert, KA Avramidis… - Physics of …, 2019 - pubs.aip.org
Multistage Depressed Collectors (MDCs) are nontrivial for high-frequency gyrotrons. A basic
conceptual design of an E× B MDC using azimuthal electric fields was proposed in Part I of …

Highly efficient gyrotron with multi-stage recuperation of residual electron energy

OI Louksha, PA Trofimov - Technical Physics, 2019 - Springer
The results of complex modeling of physical processes in a gyrotron of moderate power in
the 4-mm wavelength range have been presented. Methods for improving the quality of the …

Высокоэффективный гиротрон с многоступенчатой рекуперацией остаточной энергии электронов

ОИ Лукша, ПА Трофимов - Журнал технической физики, 2019 - mathnet.ru
Представлены результаты комплексного моделирования физических процессов в
гиротроне средней мощности 4-mm диапазона длин волн излучения. Реализованы …

Траекторный анализ в коллекторе с многоступенчатой рекуперацией энергии для прототипа гиротрона DEMO. Часть II. Тороидальное магнитное поле

ОИ Лукша, ПА Трофимов, ВН Мануилов… - Журнал технической …, 2021 - mathnet.ru
Представлены результаты моделирования коллектора c 4-х ступенчатой
рекуперацией остаточной энергии пучка для прототипа гиротрона, разрабатываемого …

[PDF][PDF] Enhancement of the 4-mm wavelength gyrotron efficiency by multistage energy recovery

OI Louksha, PA Trofimov… - St. Petersburg State …, 2023 - physmath.spbstu.ru
This study presents the results of a complex physical modeling of a moderate power
gyrotron operating at the 4-mm wavelength range. The characteristics of electrodes and …