Cyclotron Maser Instability for Intense Solid Electron Beams,

Abstract

The cyclotron maser instability for a solid relativistic electron beam propagating parallel to a uniform axial magnetic field B sub 0 e sub z it investigated. The stability analysis is carried out within the framework of the linearized Vlasov-Maxwell equations. It is assumed that nu/gamma << 1, where nu is Budker's parameter and gamma mc-squared is the electron energy. Stability properties are investigated for the choice of equilibrium distribution function in which all electrons have the same value of total perpendicular energy, the same value of axial velocity, and a step-function distribution in canonical angular momentum. The instability growth rate is calculated including a determination of the optimum value of the beam radius R sub 0 for maximum growth. It is found that the maximum growth rate for a solid beam is comparable to the maximum growth rate for a hollow beam. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1975
Accession Number
ADA070594

Entities

People

  • Hwan-sup Uhm
  • Ronald C. Davidson

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Bessel Functions
  • Coordinate Systems
  • Cyclotron Resonance
  • Dispersion Relations
  • Distribution Functions
  • Electron Beams
  • Electron Density
  • Electron Energy
  • Electrons
  • Equations
  • Frequency
  • Group Velocity
  • Magnetic Fields
  • Momentum
  • Numerical Analysis
  • Radiation

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics