Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment

Craig R. Donaldson; Wenlong He; Liang Zhang; Adrian W. Cross; Fengping Li; Alan D.R. Phelps; Kevin Ronald; Craig W. Robertson; Colin G. Whyte; P. McElhinney

doi:10.1109/IVEC.2012.6262136

Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment

Craig R. Donaldson, Wenlong He, Liang Zhang, Adrian W. Cross, Fengping Li, Alan D.R. Phelps, Kevin Ronald, Craig W. Robertson, Colin G. Whyte, P. McElhinney

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

Abstract

The experimental demonstration of a W-band gyrotron backward-wave oscillator (gyro-BWO) using both thermionic cusp electron gun and helically corrugated waveguide will be presented. The cusp gun is designed to generate an axis-encircling electron beam of 1.5 A at 40 kV with an adjustable velocity ratio of up to 3.0. The beam had a simulated axial velocity spread (Δvz/vz) of ~8% and alpha spread (Δ α /α) of ~10%. The beam had an averaged radius of 0.35 mm and beam thickness of 0.05 mm which is ideal to drive sub-mm wave gyro-devices under investigation. The gyro-BWO has been experimentally measured and the latest results will be presented.

Original language	English
Title of host publication	2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)
Publisher	IEEE
Pages	217 - 218
Number of pages	2
ISBN (Print)	978-1-4673-0188-6
DOIs	https://doi.org/10.1109/IVEC.2012.6262136
Publication status	Published - 24 Apr 2012
Event	2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC) - Monterey,CA, United States Duration: 24 Apr 2012 → 26 Apr 2012

Conference

Conference	2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)
Country/Territory	United States
City	Monterey,CA
Period	24/04/12 → 26/04/12

Keywords

electron beams
backward wave oscillators
helical waveguides
thermionic emission

Access to Document

10.1109/IVEC.2012.6262136

IEEE Plasma Science and Applications (PSAC) Award 2017
Phelps, A. (Recipient), 24 May 2017
Prize: Prize (including medals and awards)

Cite this

@inproceedings{2e6e3ef26cc04bdcbb97df4243720d29,

title = "Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment",

abstract = "The experimental demonstration of a W-band gyrotron backward-wave oscillator (gyro-BWO) using both thermionic cusp electron gun and helically corrugated waveguide will be presented. The cusp gun is designed to generate an axis-encircling electron beam of 1.5 A at 40 kV with an adjustable velocity ratio of up to 3.0. The beam had a simulated axial velocity spread (Δvz/vz) of ~8% and alpha spread (Δ α /α) of ~10%. The beam had an averaged radius of 0.35 mm and beam thickness of 0.05 mm which is ideal to drive sub-mm wave gyro-devices under investigation. The gyro-BWO has been experimentally measured and the latest results will be presented.",

keywords = "electron beams, backward wave oscillators, helical waveguides, thermionic emission",

author = "Donaldson, {Craig R.} and Wenlong He and Liang Zhang and Cross, {Adrian W.} and Fengping Li and Phelps, {Alan D.R.} and Kevin Ronald and Robertson, {Craig W.} and Whyte, {Colin G.} and P. McElhinney",

year = "2012",

month = apr,

day = "24",

doi = "10.1109/IVEC.2012.6262136",

language = "English",

isbn = "978-1-4673-0188-6",

pages = "217 -- 218",

booktitle = "2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)",

publisher = "IEEE",

note = "2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC) ; Conference date: 24-04-2012 Through 26-04-2012",

}

Donaldson, CR, He, W, Zhang, L, Cross, AW, Li, F, Phelps, ADR , Ronald, K , Robertson, CW , Whyte, CG & McElhinney, P 2012, Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment. in 2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC). IEEE, pp. 217 - 218, 2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC), Monterey,CA, United States, 24/04/12. https://doi.org/10.1109/IVEC.2012.6262136

TY - GEN

T1 - Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment

AU - Donaldson, Craig R.

AU - He, Wenlong

AU - Zhang, Liang

AU - Cross, Adrian W.

AU - Li, Fengping

AU - Phelps, Alan D.R.

AU - Ronald, Kevin

AU - Robertson, Craig W.

AU - Whyte, Colin G.

AU - McElhinney, P.

PY - 2012/4/24

Y1 - 2012/4/24

N2 - The experimental demonstration of a W-band gyrotron backward-wave oscillator (gyro-BWO) using both thermionic cusp electron gun and helically corrugated waveguide will be presented. The cusp gun is designed to generate an axis-encircling electron beam of 1.5 A at 40 kV with an adjustable velocity ratio of up to 3.0. The beam had a simulated axial velocity spread (Δvz/vz) of ~8% and alpha spread (Δ α /α) of ~10%. The beam had an averaged radius of 0.35 mm and beam thickness of 0.05 mm which is ideal to drive sub-mm wave gyro-devices under investigation. The gyro-BWO has been experimentally measured and the latest results will be presented.

AB - The experimental demonstration of a W-band gyrotron backward-wave oscillator (gyro-BWO) using both thermionic cusp electron gun and helically corrugated waveguide will be presented. The cusp gun is designed to generate an axis-encircling electron beam of 1.5 A at 40 kV with an adjustable velocity ratio of up to 3.0. The beam had a simulated axial velocity spread (Δvz/vz) of ~8% and alpha spread (Δ α /α) of ~10%. The beam had an averaged radius of 0.35 mm and beam thickness of 0.05 mm which is ideal to drive sub-mm wave gyro-devices under investigation. The gyro-BWO has been experimentally measured and the latest results will be presented.

KW - electron beams

KW - backward wave oscillators

KW - helical waveguides

KW - thermionic emission

U2 - 10.1109/IVEC.2012.6262136

DO - 10.1109/IVEC.2012.6262136

M3 - Conference contribution book

SN - 978-1-4673-0188-6

SP - 217

EP - 218

BT - 2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)

PB - IEEE

T2 - 2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)

Y2 - 24 April 2012 through 26 April 2012

ER -

Updates on a W-band Gyro-BWO using a helically corrugated waveguide experiment

Abstract

Conference

Keywords

Access to Document

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Prizes

IEEE Plasma Science and Applications (PSAC) Award 2017

Cite this