The Instability Boundary and Growth Rate Contours of the Gyrotron Amplifier with Spreads in Energy and Momenta.

Abstract

The combined effects of the spreads in energy and axial momentum of annular beam electrons in a gyrotron amplifier are spectrally investigated. A conveniently normalized dispersion relation is found for TE modes, and analyzed to obtain the instability boundary and growth rate contours. The spread effects prove to reduce the growth rate near the beam-waveguide synchronous mode, and enhance it for the mode out of synchronization. In particular the growth rate at the synchronous mode tends to peak when the electron distribution is thermally isotropic. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 14, 1979
Accession Number
ADA077450

Entities

People

  • Joon Y. Choe
  • Saeyoung Ahn

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Angular Momentum
  • Boundaries
  • Dispersion Relations
  • Dispersions
  • Electron Beams
  • Electrons
  • Equations
  • Frequency
  • Gyrotrons
  • Instability
  • Linear Momentum
  • Microwave Tubes
  • Military Research
  • Momentum
  • Waveguides

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Electrical Engineering
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering

Technology Areas

  • Microelectronics