Secondary Electron Emission from Dielectric Materials of a Hall Thruster with Segmented Electrodes Metadata

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Title

  • Main Title Secondary Electron Emission from Dielectric Materials of a Hall Thruster with Segmented Electrodes

Creator

  • Author: Dunaevsky, A.
    Creator Type: Personal
  • Author: Raitses, Y.
    Creator Type: Personal
  • Author: Fisch, N.J.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Science.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Science (SC) (United States)

Publisher

  • Name: Princeton University. Plasma Physics Laboratory.
    Place of Publication: Princeton, New Jersey
    Additional Info: Princeton Plasma Physics Lab., NJ (United States)

Date

  • Creation: 2003-02-12

Language

  • English

Description

  • Content Description: The discharge parameters in Hall thrusters depend strongly on the yield of secondary electron emission from channel walls. Comparative measurements of the yield of secondary electron emission at low energies of primary electrons were performed for several dielectric materials used in Hall thrusters with segmented electrodes. The measurements showed that at low energies of primary electrons the actual energetic dependencies of the total yield of secondary electron emission could differ from fits, which are usually used in theoretical models. The observed differences might be caused by electron backscattering, which is dominant at lower energies and depends strongly on surface properties. Fits based on power or linear laws are relevant at higher energies of primary electrons, where the bulk material properties play a decisive role.
  • Physical Description: 784 Kilobytes pages

Subject

  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Dielectric Materials
  • Keyword: Electrodes
  • STI Subject Categories: 36 Materials Science
  • Keyword: Backscattering
  • Keyword: Plasma-Wall Interaction
  • Keyword: Electric Propulsion
  • Keyword: Sheath
  • Keyword: Electrons
  • Keyword: Thrusters Electric Propulsion
  • Keyword: Electron Emission
  • Keyword: Surface Properties

Source

  • Other Information: PBD: 12 Feb 2003

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: PPPL-3787
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/812024
  • Office of Scientific & Technical Information Report Number: 812024
  • Archival Resource Key: ark:/67531/metadc738486

Note

  • Display Note: INIS; OSTI as DE00812024