TWANG-PIC, a novel gyro-averaged one-dimensional particle-in-cell code for interpretation of gyrotron experiments

F Braunmueller, TM Tran, Q Vuillemin, S Alberti… - Physics of …, 2015 - pubs.aip.org
A new gyrotron simulation code for simulating the beam-wave interaction using a
monomode time-dependent self-consistent model is presented. The new code TWANG-PIC …

Magnetron injection gun for a short pulse, 0.67 THz gyrotron for remote detection of radioactive materials

U Singh, N Kumar, AK Sinha - IEEE Transactions on Terahertz …, 2014 - ieeexplore.ieee.org
In this paper, the design of electron gun for a 0.67 THz gyrotron is presented. The in-house
code MIGSYN is used to estimate the initial gun parameters. The electron trajectory tracing …

Design of 132 GHz gyrotron with 3 GHz tunability for 200 MHz DNP/NMR spectrometer

N Kumar, U Singh, AK Sinha - Infrared Physics & Technology, 2015 - Elsevier
A complete design of 132 GHz gyrotron for 200 MHz DNP–NMR spectroscopy application is
presented in this article. The design is performed considering a frequency tunability range of …

[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 …

RF behavior of a coaxial interaction structure for 0.24-THz, 2-MW gyrotron

N Kumar, A Bera - IEEE Transactions on Electron Devices, 2020 - ieeexplore.ieee.org
The coaxial interaction structure for a 0.24-THz, 2-MW gyrotron is designed, and its RF
behavior is analyzed for the beam current of 60 A and the beam voltage of 90 kV. The …

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 …

Design of a triode magnetron injection gun for a 1-MW 170-GHz gyrotron

A Kumar, U Singh, N Kumar, N Kumar… - … on Plasma Science, 2012 - ieeexplore.ieee.org
A triode magnetron injection gun (MIG) is designed for a 1-MW 170-GHz gyrotron, which will
be used in an electron cyclotron resonance heating system for the International …

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 …

Design of a RF window for 170 GHz, 1 MW gyrotron for ECRH application

A Kumar, S Sharan, N Kumar, U Singh… - Infrared Physics & …, 2012 - Elsevier
This paper describes the design of a large sized diamond window for 1MW, 170GHz
gyrotron. The diameter and the thickness of the diamond window are 80mm and 1.482 mm …