Diffusion of the Self Magnetic Fields of an Electron Beam through a Resistive Toroidal Chamber

Abstract

We have studied the diffusion of the self magnetic field of a relativistic electron beam through a resistive toroidal chamber. In contrast with previous calculations, the solution is not limited near the minor axis of the torus. Under the assumptions of small aspect ratio, thin conducting wall and to zero order in toroidal corrections, it has been found that there are three characteristic times with which the magnetic field leaks out of the resistive torus. The computed fields have been used to determine the beam centroid orbit during trapping that follows the beam injection in the NRL modified betatron accelerator. The predicted orbit is in very good agreement with the results of the experiment.

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Document Details

Document Type
Technical Report
Publication Date
Jul 16, 1992
Accession Number
ADA253339

Entities

People

  • Chris A. Kapetanakos
  • D. Dialetis
  • S. J. Marsh

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aspect Ratio
  • Bessel Functions
  • Betatrons
  • Boundaries
  • Computational Fluid Dynamics
  • Computational Science
  • Coordinate Systems
  • Current Density
  • Differential Equations
  • Diffusion
  • Electric Fields
  • Electron Beams
  • Electrons
  • Equations
  • Equations Of Motion
  • Magnetic Fields
  • Step Functions

Fields of Study

  • Physics

Readers

  • Plasma Physics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster
  • Space - Orbital Debris