A review on the sub-THz/THz gyrotrons

N Kumar, U Singh, A Bera, AK Sinha - Infrared Physics & Technology, 2016 - Elsevier
A review on the sub-THz/THz gyrotrons is performed in this manuscript. The present
development status of gyrotrons can be divided into three streams for the sake of better …

Adaptive design of the magnetron injection gun using constrained multiobjective optimization

P Wang, F Yang, L Li - Swarm and Evolutionary Computation, 2023 - Elsevier
The design of the magnetron injection gun (MIG) is an inverse problem with implicit objective
functions and complex constraints. The computer-aided design using an optimization …

[图书][B] Electron Gun for Gyrotrons

U Singh, AK Sinha - 2022 - Springer
Energy crisis is a major problem at present and will remain so in the future. A continuous
effort is ongoing in the microwave community/microwave devices globally, to enhance the …

Design and Analysis of 25 kW (CW) Millimeter Wave Source with External Waveguide Mode Converters for Advance Material Heating/Processing

N Kumar, H Khatun, A Mishra… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
The design of millimeter wave source of 28 GHz frequency with 25 kW RF output power is
discussed here. Also the design of waveguide mode converters (rippled wall, serpentine …

170-GHz, 2-MW coaxial-cavity gyrotron design for plasma fusion system

N Kumar, U Singh, A Bera… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Multimegawatt RF power in millimeter waveband (30-300 GHz) is required in the
magnetically confined plasma fusion reactors. In this paper, the design of 170-GHz, 2-MW …

Triode type coaxial inverse magnetron injection gun for 2-MW, 240-GHz gyrotron

N Kumar, U Singh, A Bera - IEEE Transactions on Electron …, 2019 - ieeexplore.ieee.org
A triode type coaxial inverse magnetron injection gun (CIMIG) is designed using the 2-D and
3-D beam trajectory simulation codes for 240-GHz, 2-MW coaxial gyrotron. In IMIG, the …

Inverse magnetron injection gun for megawatt power, sub-THz gyrotron

N Kumar, U Singh, V Gahlaut… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Inverse magnetron injection gun (IMIG) provides several advantages over simple MIG
especially in high-power, high-frequency gyrotron. Sub-millimeter (> 230 GHz), high-power …

Развитие методов анализа электронно-оптических систем гиротронов с нарушениями азимутальной симметрии

ЕС Семенов, ОП Планкин… - Известия высших …, 2015 - cyberleninka.ru
Представлен алгоритм моделирования систем формирования винтовых электронных
пучков для запитки гиротронов, позволяющих учитывать типичные виды нарушений …

A gyrating electron beam source for frequency tunable, 200 GHz gyrotron

N Kumar, U Singh, A Bera, AK Sinha - Journal of ElEctromagnEtic …, 2017 - Taylor & Francis
Magnetron injection gun (MIG) is an important and critical part of any gyrotron. The overall
performance of gyrotron deeply depends on the quality of gyrating electron beam. In this …

Optimization Design of the Magnetron Injection Gun for the Gyrotron with a Pulsed Magnet

P Wang, F Yang, S Jiang, X Li… - 2023 26th International …, 2023 - ieeexplore.ieee.org
The magnetron injection gun (MIG) of the gyrotron is a complex particle dynamics system. It
is a tedious and difficult task to design the MIG, especially under a pulsed high magnetic …