Comparison of axial and radial electron beam-breakup transit-time oscillators

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Comparison of two configurations of a novel high-power microwave generator is presented in this article. Coupling the beam-breakup instability with the transit-time effect of the electron beam in the cavity, rapid energy exchange between the electrons and cavity modes can occur. The dominant cavity modes in the axial and radial configurations are different but their growth rates are comparable. We found that the radial configuration can have a beam impedance less than 10 {Omega} and therefore more suitable for low-voltage and high power operation. Good agreements have been obtained between linear theory and simulation for both configurations.

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8 p.

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Kwan, T.J.T. & Mostrom, M.A. August 1, 1995.

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  • Kwan, T.J.T. Los Alamos National Lab., NM (United States)
  • Mostrom, M.A. Mission Research Corporation, Albuquerque, NM (United States)

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Description

Comparison of two configurations of a novel high-power microwave generator is presented in this article. Coupling the beam-breakup instability with the transit-time effect of the electron beam in the cavity, rapid energy exchange between the electrons and cavity modes can occur. The dominant cavity modes in the axial and radial configurations are different but their growth rates are comparable. We found that the radial configuration can have a beam impedance less than 10 {Omega} and therefore more suitable for low-voltage and high power operation. Good agreements have been obtained between linear theory and simulation for both configurations.

Physical Description

8 p.

Notes

OSTI as DE95016791

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  • 40. annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 9-14 Jul 1995

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  • Other: DE95016791
  • Report No.: LA-UR--95-2308
  • Report No.: CONF-950793--11
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 100186
  • Archival Resource Key: ark:/67531/metadc619981

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 25, 2016, 2:07 p.m.

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Kwan, T.J.T. & Mostrom, M.A. Comparison of axial and radial electron beam-breakup transit-time oscillators, article, August 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc619981/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.