Cyclotron Maser Instability for General Magnetic Harmonic Number,

Abstract

This paper examines the cyclotron maser instability for general magnetic harmonic number transverse electric (TE) and transverse magnetic (TM) waveguide modes in a conducting cylinder of radius R sub c. The analysis is carried out for a hollow electron beam (radius R sub 0) propagating parallel to a uniform axial magnetic field. One of the most important features of the analysis is that the instability growth rate for magnetic harmonic numbers s=2, 3, ... is comparable to the growth rate of the fundamental (s=1) mode, particularly for moderate electron energy. Moreover, it is shown that the instability growth rate can be maximized by appropriate choice of the geometric parameter R sub 0/R sub c.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA060379

Entities

People

  • Hwan-sup Uhm
  • K. R. Chu
  • Ronald C. Davidson

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Bessel Functions
  • Dispersion Relations
  • Distribution Functions
  • Electromagnetic Fields
  • Electron Beams
  • Electron Density
  • Electron Energy
  • Electrons
  • Equations
  • Frequency
  • Magnetic Fields
  • Military Research
  • Momentum
  • Perturbations
  • Radiation
  • Universities

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Microelectronics