Hemispherical Measurements of the SPT - 140 Plume

Abstract

The results of a 3-dimensional hemispherical Faraday probe rake assembly are investigated. Such a system is attractive because it allows measurement of current density at multiple locations simultaneously, and can be used to detect asymmetry in the Hall Effect thruster (HET) beam. For ease of correlation, experiments were conducted using Faraday probes and biasing techniques similar to other organizations within the EP community. Results can be used to validate simulations and to gain an understanding of the proper positioning of HETs on spacecraft. Additionally, the effects of varying the Faraday electrode material are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 18, 2002
Accession Number
ADA410330

Entities

People

  • John M. Fife
  • S. F. Engelman

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Assembly
  • Current Density
  • Electron Emission
  • Electrons
  • Emission
  • Geometry
  • Guard Rings
  • Hall Effect
  • Hall Thrusters
  • Materials
  • Measurement
  • Metal Films
  • Physical Properties
  • Test Facilities
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Aerospace Propulsion Engineering.
  • Electrical Engineering
  • Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster