Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector

Wenlong He; Craig R. Donaldson; Liang Zhang; Kevin Ronald; Alan D. R. Phelps; Adrian W. Cross

doi:10.5772/1828

Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector

Wenlong He, Craig R. Donaldson, Liang Zhang, Kevin Ronald, Alan D. R. Phelps, Adrian W. Cross

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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Abstract

The gyrotron backward wave oscillator (gyro-BWO) is an efficient source of frequency-tunable high-power coherent radiation in the microwave to the terahertz range. It has attracted significant research interest recently due to its potential applications in many areas such as remote sensing, medical imaging, plasma heating and spectroscopy. A gyro-BWO using a helically corrugated interaction region (HCIR) has achieved an even wider frequency tuning range and higher efficiency compared with a conventional gyro-BWO with a smooth-bore cavity. This is due to the existence of an “ideal”eigenwave in the HCIR with a large and constant group velocity when the axial wave number is small.

Original language	English
Title of host publication	Numerical Simulations of Physical and Engineering Processes
Editors	Jan Awrejcewicz
Pages	101-132
Number of pages	32
ISBN (Electronic)	9789535144274
DOIs	https://doi.org/10.5772/1828
Publication status	Published - 26 Sept 2011

Keywords

numerical simulation
helically corrugated interaction region
cusp electron gun
depressed collector

Access to Document

10.5772/1828

He-etal-Intech-2011-Numerical-simulation-of-a-Gyro-BWO-with-a-helically-corrugated-interaction-region-cusp-electron-gunFinal published version, 877 KBLicence: CC BY-NC-SA 4.0

Pathways to Impact Award
Littlejohn, D., Cross, A., Phelps, A. & Ronald, K.
EPSRC (Engineering and Physical Sciences Research Council)
1/08/10 → 31/03/11
Project: Research
High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing
Phelps, A., Cross, A., Ronald, K. & Donaldson, C.
EPSRC (Engineering and Physical Sciences Research Council)
1/04/09 → 31/03/13
Project: Research
Generation of high power, high frequency radiation using high brightness pseudospark-sourced beam
Cross, A., He, W., Phelps, A., Ronald, K. & Zhang, L.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/08 → 31/03/12
Project: Research

Cite this

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title = "Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector",

abstract = "The gyrotron backward wave oscillator (gyro-BWO) is an efficient source of frequency-tunable high-power coherent radiation in the microwave to the terahertz range. It has attracted significant research interest recently due to its potential applications in many areas such as remote sensing, medical imaging, plasma heating and spectroscopy. A gyro-BWO using a helically corrugated interaction region (HCIR) has achieved an even wider frequency tuning range and higher efficiency compared with a conventional gyro-BWO with a smooth-bore cavity. This is due to the existence of an “ideal”eigenwave in the HCIR with a large and constant group velocity when the axial wave number is small.",

keywords = "numerical simulation, helically corrugated interaction region , cusp electron gun , depressed collector",

author = "Wenlong He and Donaldson, {Craig R.} and Liang Zhang and Kevin Ronald and Phelps, {Alan D. R.} and Cross, {Adrian W.}",

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doi = "10.5772/1828",

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AU - He, Wenlong

AU - Donaldson, Craig R.

AU - Zhang, Liang

AU - Ronald, Kevin

AU - Phelps, Alan D. R.

AU - Cross, Adrian W.

PY - 2011/9/26

Y1 - 2011/9/26

N2 - The gyrotron backward wave oscillator (gyro-BWO) is an efficient source of frequency-tunable high-power coherent radiation in the microwave to the terahertz range. It has attracted significant research interest recently due to its potential applications in many areas such as remote sensing, medical imaging, plasma heating and spectroscopy. A gyro-BWO using a helically corrugated interaction region (HCIR) has achieved an even wider frequency tuning range and higher efficiency compared with a conventional gyro-BWO with a smooth-bore cavity. This is due to the existence of an “ideal”eigenwave in the HCIR with a large and constant group velocity when the axial wave number is small.

AB - The gyrotron backward wave oscillator (gyro-BWO) is an efficient source of frequency-tunable high-power coherent radiation in the microwave to the terahertz range. It has attracted significant research interest recently due to its potential applications in many areas such as remote sensing, medical imaging, plasma heating and spectroscopy. A gyro-BWO using a helically corrugated interaction region (HCIR) has achieved an even wider frequency tuning range and higher efficiency compared with a conventional gyro-BWO with a smooth-bore cavity. This is due to the existence of an “ideal”eigenwave in the HCIR with a large and constant group velocity when the axial wave number is small.

KW - numerical simulation

KW - helically corrugated interaction region

KW - cusp electron gun

KW - depressed collector

U2 - 10.5772/1828

DO - 10.5772/1828

M3 - Chapter

SN - 9789533076201

SP - 101

EP - 132

BT - Numerical Simulations of Physical and Engineering Processes

A2 - Awrejcewicz, Jan

ER -

Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector

Abstract

Keywords

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Projects

Pathways to Impact Award

High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing

Generation of high power, high frequency radiation using high brightness pseudospark-sourced beam

Cite this