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

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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 languageEnglish
Title of host publication2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)
PublisherIEEE
Pages217 - 218
Number of pages2
ISBN (Print)978-1-4673-0188-6
DOIs
Publication statusPublished - 24 Apr 2012
Event2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC) - Monterey,CA, United States
Duration: 24 Apr 201226 Apr 2012

Conference

Conference2012 IEEE Thirteenth International Vacuum Electronics Conference (IVEC)
CountryUnited States
CityMonterey,CA
Period24/04/1226/04/12

Keywords

  • electron beams
  • backward wave oscillators
  • helical waveguides
  • thermionic emission

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  • Prizes

    IEEE Plasma Science and Applications (PSAC) Award 2017

    Alan Phelps (Recipient), 24 May 2017

    Prize: Prize (including medals and awards)

  • Cite this

    Donaldson, C. R., He, W., Zhang, L., Cross, A. W., Li, F., Phelps, A. D. R., ... 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) (pp. 217 - 218). IEEE. https://doi.org/10.1109/IVEC.2012.6262136