E-Beam Benchmark Calculations. Problem No. 1.

Abstract

The transport of a large area electron beam in a cylindrical tank is analyzed using the 2-D FRED/EM and GFRED particle codes. Calculations were performed under both vacuum and non-zero density conditions using prescribed injected electron energies and current pulses. The results illustrate, dynamically, the effects of space-charge limiting and neutralization by the gas background. At the highest pressures examined, a collective instability develops. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1976
Accession Number
ADA035607

Entities

People

  • Andrew Timothy Wilson
  • Ira Katz
  • James Harvey

Tags

DTIC Thesaurus Topics

  • Current Density
  • Electric Fields
  • Electron Beams
  • Electron Density
  • Electron Emission
  • Electron Energy
  • Electrons
  • Emission
  • Frequency
  • Geometry
  • High Pressure
  • Ionization
  • Magnetic Fields
  • Photoexcitation
  • Scattering
  • Space Charge
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Pulsed Power and Plasma Physics.

Technology Areas

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