Current Enhancement for Hose-Unstable Electron Beams

Abstract

An electron beam injected into a conducting medium produces inductive electric fields. These fields drive conduction currents which, for stable beams, oppose the beam current and thereby reduce the total (net) current. For unstable beams which undergo large transverse displacements, the inductive field can reverse direction and drive conduction current parallel to the beam current. An analytic and numerical treatment of the latter effect is presented to explain current enhancement as observed for electron beams propagating in gases at pressures above 10 torr. Keywords: Electron beams; Current enhancement; Charged particle beam; Nonlinear hose instability; Circuit analysis; Resistive instabilities.

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Document Details

Document Type
Technical Report
Publication Date
Apr 24, 1986
Accession Number
ADA167804

Entities

People

  • B. Hui
  • Glenn R. Joyce
  • M. Lampe
  • R. F. Hubbard
  • Richard F. Fernsler
  • Yueying Lau

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Charged Particles
  • Circuit Analysis
  • Current Density
  • Electric Fields
  • Electrical Conductivity
  • Electrical Properties
  • Electromagnetic Fields
  • Electron Beams
  • Equations
  • Geometry
  • Infinite Series
  • Magnetic Fields
  • Magnetic Flux
  • Simulations
  • Spatial Distribution
  • Two Dimensional

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Directed Energy
  • Microelectronics