Accession Number:

ADA209954

Title:

A Study of Spacecraft Electromagnetic Contamination of Artificial Electron Beams

Descriptive Note:

Final rept. 1 Aug 1987-31 Sep 1988

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TX

Personal Author(s):

Report Date:

1988-12-31

Pagination or Media Count:

51.0

Abstract:

This report documents the numerical code developed for solving the dispersion equation of the electromagnetic dispersion equation for a finite radius electron beam in a neutralizing background. Derivation of the dispersion equation from the fluid equation and Maxwells equations is described. To study electromagnetic radiation induced by electron beam injection from the Space Shuttle, the numerical code is applied to solve for the instability growth rates for the beam and whistler modes. The numerical solutions indicate that a finite-radius electron beam injected into the ionosphere with the beam energy around 1 keV and current about 100 mA can drive the beam and whistler modes unstable. The results can explain the whistler waves radiated from the keV electron beam injected from Spacelab 2. Keywords Electromagnetic dispersion equation Numerical code Finite size beam.

Subject Categories:

  • Electricity and Magnetism
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE