Plasma cathode for a short-pulse dielectric wall accelerator

J. R. Harris, B. Hickman, R. Anaya, E. G. Cook, S. Hawkins, C. Holmes, J. Stanley, J. Watson, George J Caporaso

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The Beam Research Program at Lawrence Livermore National Laboratory is continuing development of the dielectric wall accelerator (DWA), a type of accelerator which uses stacked pulse-forming lines (PFLs) to apply an accelerating field directly to the beam through a nonconducting vacuum boundary. Here, we report operation of a DWA as an electron diode using a surface flashover plasma cathode. Peak perveances in excess of 6 × 10-6 A/V3/2 were measured, with current extraction and pulse train format depending on flashover source timing and PFL switching speed.

Original languageEnglish (US)
Pages (from-to)1069-1077
Number of pages9
JournalIEEE Transactions on Plasma Science
Volume37
Issue number6 PART 2
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Accelerators
  • Electron guns
  • Particle sources
  • Plasma generation
  • Pulse power systems

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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