Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide

Dielectric-loaded power extraction is a method for the generation of high-power radio frequency (rf) waves under development for future particle accelerators. In this method, a high-charge electron beam drives a wakefield in a dielectric-loaded waveguide (the decelerator) and an rf output coupler ex...

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Main Authors: F. Gao, M. E. Conde, W. Gai, C. Jing, R. Konecny, W. Liu, J. G. Power, T. Wong, Z. Yusof
Format: Article
Language:English
Published: American Physical Society 2008-04-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.11.041301
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author F. Gao
M. E. Conde
W. Gai
C. Jing
R. Konecny
W. Liu
J. G. Power
T. Wong
Z. Yusof
author_facet F. Gao
M. E. Conde
W. Gai
C. Jing
R. Konecny
W. Liu
J. G. Power
T. Wong
Z. Yusof
author_sort F. Gao
collection DOAJ
description Dielectric-loaded power extraction is a method for the generation of high-power radio frequency (rf) waves under development for future particle accelerators. In this method, a high-charge electron beam drives a wakefield in a dielectric-loaded waveguide (the decelerator) and an rf output coupler extracts the rf power into an external waveguide. We report on the experimental demonstration of a 7.8 GHz dielectric-loaded power extractor at the Argonne Wakefield Accelerator facility. We have generated more than 30 MW of rf power with a pulse length of approximately 1.7 ns by passing a single 66 nC electron bunch through the power extractor. We have also used a train of 4 electron bunches to show a clear signature of field superposition. Test results are in good agreement with predictions.
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spelling doaj.art-ebe33d6254c44c619d83d0d3b2c16fe62022-12-22T01:25:42ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022008-04-0111404130110.1103/PhysRevSTAB.11.041301Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguideF. GaoM. E. CondeW. GaiC. JingR. KonecnyW. LiuJ. G. PowerT. WongZ. YusofDielectric-loaded power extraction is a method for the generation of high-power radio frequency (rf) waves under development for future particle accelerators. In this method, a high-charge electron beam drives a wakefield in a dielectric-loaded waveguide (the decelerator) and an rf output coupler extracts the rf power into an external waveguide. We report on the experimental demonstration of a 7.8 GHz dielectric-loaded power extractor at the Argonne Wakefield Accelerator facility. We have generated more than 30 MW of rf power with a pulse length of approximately 1.7 ns by passing a single 66 nC electron bunch through the power extractor. We have also used a train of 4 electron bunches to show a clear signature of field superposition. Test results are in good agreement with predictions.http://doi.org/10.1103/PhysRevSTAB.11.041301
spellingShingle F. Gao
M. E. Conde
W. Gai
C. Jing
R. Konecny
W. Liu
J. G. Power
T. Wong
Z. Yusof
Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
Physical Review Special Topics. Accelerators and Beams
title Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
title_full Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
title_fullStr Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
title_full_unstemmed Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
title_short Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide
title_sort design and testing of a 7 8 ghz power extractor using a cylindrical dielectric loaded waveguide
url http://doi.org/10.1103/PhysRevSTAB.11.041301
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