Review of high-power microwave source research

SH Gold, GS Nusinovich - Review of Scientific instruments, 1997‏ - pubs.aip.org
This article reviews the state-of-the-art in high-power microwave source research. It begins
with a discussion of the concepts involved in coherent microwave generation. The main …

State-of-the-art of high-power gyro-devices and free electron masers

M Thumm - Journal of Infrared, Millimeter, and Terahertz Waves, 2020‏ - Springer
This paper presents a review of the experimental achievements related to the development
of high-power gyrotron oscillators for long-pulse or CW operation and pulsed gyrotrons for …

High-gain wide-band gyrotron traveling wave amplifier with a helically corrugated waveguide

VL Bratman, AW Cross, GG Denisov, W He… - Physical Review Letters, 2000‏ - APS
First bandwidth measurements of a novel gyrotron amplifier are presented. The coupling
between the second harmonic cyclotron mode of a gyrating electron beam and the radiation …

Gyro-TWT with a helical operating waveguide: New possibilities to enhance efficiency and frequency bandwidth

GG Denisov, VL Bratman, ADR Phelps… - IEEE transactions on …, 1998‏ - ieeexplore.ieee.org
A helical corrugation of the inner surface of an oversized cylindrical waveguide provides, for
certain parameters, an almost constant value of group velocity and close to zero longitudinal …

Fundamentals of Electron Cyclotron Resonance and Cyclotron Autoresonance in Gyro-Devices: A Comprehensive Review of Theory

S Sabchevski - Applied Sciences, 2024‏ - mdpi.com
This paper aims to present some selected fundamentals of the theory of a broad class of
gyro-devices in a systematic and consistent manner and with sufficient detail necessary for …

[ספר][B] State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2017 (KIT Scientific Reports; 7750)

M Thumm - 2018‏ - books.google.com
Gyrotron oscillators (gyromonotrons) are mainly used as high power millimeter wave
sources for electron cyclotron resonance heating (ECRH), electron cyclotron current drive …

Gyrotron traveling wave amplifier with a helical interaction waveguide

GG Denisov, VL Bratman, AW Cross, W He… - Physical review …, 1998‏ - APS
A new microwave system in the form of a cylindrical waveguide with a helical corrugation of
the inner surface is proposed for a gyrotron traveling wave tube (gyro-TWT). The corrugation …

[PDF][PDF] State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2013

M Thumm - State-of-the-Art of High Power Gyro-Devices and Free …, 2014‏ - uplopen.com
Gyrotron oscillators (gyromonotrons) are mainly used as high power millimeter wave
sources for electron cyclotron resonance heating (ECRH), electron cyclotron current drive …

Axis-encircling electron beam generation using a smooth magnetic cusp for gyrodevices

W He, CG Whyte, EG Rafferty, AW Cross… - Applied Physics …, 2008‏ - pubs.aip.org
The generation of an annular-shaped axis-encircling electron beam using a smooth
magnetic cusp was studied through numerical simulations and experiments for harmonic …

State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2012.

M Thumm - State-of-the-Art of High Power Gyro-Devices and Free …, 2013‏ - uplopen.com
This report gives an update of the worldwide experimental achievements in the development
of long-pulse gyrotron oscillators for fusion plasma heating, plasma diagnostics and …