Gyrotrons for high-power terahertz science and technology at FIR UF

T Idehara, SP Sabchevski - Journal of Infrared, Millimeter, and Terahertz …, 2017 - Springer
In this review paper, we present the recent progress in the development of a series of
gyrotrons at the Research Center for Development of Far-Infrared Region, University of …

Second harmonic 527-GHz gyrotron for DNP-NMR: Design and experimental results

SK Jawla, RG Griffin, IA Mastovsky… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
We report the design and experimental demonstration of a frequency tunable terahertz
gyrotron at 527 GHz built for an 800-MHz dynamic nuclear polarization enhanced nuclear …

Parasitic oscillations in smooth-wall circular symmetric gyrotron beam ducts

J Genoud, S Alberti, TM Tran, G Le Bars… - Journal of Infrared …, 2019 - Springer
In order to study parasitic oscillation that may occur in a realistic beam duct upstream to the
gyrotron cavity, the self-consistent linear and spectral code TWANGlinspec has been …

High-efficiency, long-pulse operation of MW-level dual-frequency gyrotron, 84/126GHz, for the TCV Tokamak

S Alberti, KA Avramidis, W Bin… - … Waves (IRMMW-THz …, 2019 - ieeexplore.ieee.org
The first unit of the dual-frequency gyrotron, 84-126GHz/1MW/2s, for the upgrade of the TCV
ECH system has been delivered and is presently being commissioned. During a first phase …

500-fold enhancement of in situ 13C liquid state NMR using gyrotron-driven temperature-jump DNP

D Yoon, M Soundararajan, C Caspers… - Journal of Magnetic …, 2016 - Elsevier
A 550-fold increase in the liquid state 13 C NMR signal of a 50 μL sample was obtained by
first hyperpolarizing the sample at 20 K using a gyrotron (260 GHz), then, switching its …

Starting currents for eigenmodes of a gyrotron cavity with mode conversion

AV Maksimenko, VI Shcherbinin… - … on Electron Devices, 2019 - ieeexplore.ieee.org
In the fixed-field (cold) approximation, a generalized formula is derived for the starting
currents of eigenmodes excited by an electron beam in a gyrotron cavity with the mode …

Megawatt power generation of the dual-frequency gyrotron for TCV at 84 and 126 GHz, in long pulses

JP Hogge, S Alberti, KA Avramidis, A Bruschi… - AIP Conference …, 2020 - pubs.aip.org
In the frame of the TCV Tokamak upgrade, two 84/126 GHz/2 s dual frequency gyrotrons
designed by SPC and KIT and manufactured by THALES will be added to the existing EC …

Spectral approach with iterative clarification of a radiation boundary conditions for modeling of quasimodes of a gyrotrons open cavities

AG Rozhnev, MM Melnikova… - Izvestiya VUZ. Applied …, 2024 - journals.rcsi.science
Purpose. The article presents a new method for numerical simulation of quasi-eigenmode
oscillations in open resonators of gyrotrons—powerful vacuum generators of …

Учредители: Саратовский национальный исследовательский государственный университет им. НГ Чернышевского

АГ РОЖНЕВ, ММ МЕЛЬНИКОВА… - ИЗВЕСТИЯ ВЫСШИХ …, 2024 - elibrary.ru
Цель. В статье представлен новый метод численного моделирования
квазисобственных колебаний в открытых резонаторах гиротронов—мощных …

Modeling of parasitic oscillations in smooth-wall circular symmetric dielectric-loaded gyrotron beam ducts

J Genoud, S Alberti, JP Hogge, IG Tigelis… - Physics of …, 2019 - pubs.aip.org
The self-consistent simulation of the electron beam interaction was performed in the
presence of a lossy dielectric layer in the smooth-wall beam duct of a gyrotron oscillator. For …