Stability Properties of Azimuthally Symmetric Perturbations in an Intense Electron Beam

Abstract

The Vlasov-Maxwell equations are used to investigate the stability of azimuthally symmetric perturbations (e.g., sausage and hollowing modes) of an electron of ion beam immersed in a resistive plasma. The perturbed space charge and plasma current are treated self-consistently for any value of the plasma conductivity. A similar analysis of the hose instability is also carried out. The analysis is carried out for the 'loss-cone' distribution function in which all of the beam electrons have the same value of energy and the same value of axial canonical momentum. In the high conductivity regime, the system is shown to be strongly destabilized by a sufficiently large value of the fractional current neutralization.

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Document Details

Document Type
Technical Report
Publication Date
Feb 03, 1981
Accession Number
ADA094535

Entities

People

  • Han S. Uhm
  • Mártin Lampe

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Charged Particles
  • Current Density
  • Differential Equations
  • Dispersion Relations
  • Distribution Functions
  • Eigenvalues
  • Electromagnetic Fields
  • Electron Beams
  • Electron Energy
  • Electrons
  • Equations
  • Ions
  • Long Wavelengths
  • Magnetic Fields
  • Numerical Analysis
  • Particle Beams
  • Space Charge

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster
  • Space - Orbital Debris