High-current oversized annular electron beam formation for high-power microwave research

Research output: Contribution to journalArticle

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Abstract

The authors report the study of a high-current accelerator, capable of producing thin (2 mm) annular, mildly relativistic (450 keV) electron beams (up to 1.5 kA) of diameter of 70 mm. Propagation of an electron beam through a 2 m long, coaxial beam channel, with inner and outer conductor radii of 30 and 40 mm, respectively, was demonstrated with the electron beam current at the beam-channel output measured using a Rogowski coil. The results obtained are compared with those predicted via numerical simulation. The electron beam obtained was used for proof-of-concept work demonstrating the operation of a high-power maser operating at millimeter wavelengths, using two-dimensional distributed feedback.
LanguageEnglish
Pages171503-1-171503-3
JournalApplied Physics Letters
Volume89
Issue number17
DOIs
Publication statusPublished - 23 Oct 2006

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high current
electron beams
microwaves
masers
beam currents
accelerators
coils
conductors
radii
propagation
output
wavelengths
simulation

Keywords

  • high-current accelerator
  • electron beams
  • coaxial beam channel
  • inner conductor
  • outer conductor
  • Rogowski coil

Cite this

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title = "High-current oversized annular electron beam formation for high-power microwave research",
abstract = "The authors report the study of a high-current accelerator, capable of producing thin (2 mm) annular, mildly relativistic (450 keV) electron beams (up to 1.5 kA) of diameter of 70 mm. Propagation of an electron beam through a 2 m long, coaxial beam channel, with inner and outer conductor radii of 30 and 40 mm, respectively, was demonstrated with the electron beam current at the beam-channel output measured using a Rogowski coil. The results obtained are compared with those predicted via numerical simulation. The electron beam obtained was used for proof-of-concept work demonstrating the operation of a high-power maser operating at millimeter wavelengths, using two-dimensional distributed feedback.",
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High-current oversized annular electron beam formation for high-power microwave research. / Konoplev, I.V.; Cross, A.W.; MacInnes, P.; He, W.; Whyte, C.G.; Phelps, A.D.R.; Robertson, C.W.; Ronald, K.

In: Applied Physics Letters, Vol. 89, No. 17, 23.10.2006, p. 171503-1-171503-3.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High-current oversized annular electron beam formation for high-power microwave research

AU - Konoplev, I.V.

AU - Cross, A.W.

AU - MacInnes, P.

AU - He, W.

AU - Whyte, C.G.

AU - Phelps, A.D.R.

AU - Robertson, C.W.

AU - Ronald, K.

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AB - The authors report the study of a high-current accelerator, capable of producing thin (2 mm) annular, mildly relativistic (450 keV) electron beams (up to 1.5 kA) of diameter of 70 mm. Propagation of an electron beam through a 2 m long, coaxial beam channel, with inner and outer conductor radii of 30 and 40 mm, respectively, was demonstrated with the electron beam current at the beam-channel output measured using a Rogowski coil. The results obtained are compared with those predicted via numerical simulation. The electron beam obtained was used for proof-of-concept work demonstrating the operation of a high-power maser operating at millimeter wavelengths, using two-dimensional distributed feedback.

KW - high-current accelerator

KW - electron beams

KW - coaxial beam channel

KW - inner conductor

KW - outer conductor

KW - Rogowski coil

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