High-current surface flashover in a high-pressure SF6 environment

John Krile, Andreas Neuber, Russell Vela

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A recent upgrade of Sandia National Laboratories' Z-machine has exposed a possible failure mode in the 5 MV laser-triggered gas switches (LTGS). During the closure of the cascade section of the switch, the surface flashover (SF) inside the dielectric switch housing occurred sporadically, affecting subsequent closing timing and damaging the switch housing. A small-scale experiment has been constructed to mimic conditions within the LTGS and to examine the survivability of various materials exposed to high-current SFs.

Original languageEnglish
Pages (from-to)934-935
Number of pages2
JournalIEEE Transactions on Plasma Science
Issue number4 PART 1
StatePublished - Aug 2008


  • Dielectric breakdown
  • Discharges
  • Electric Breakdown
  • Electrodes
  • Flashover
  • Generators
  • Optical filters
  • Plasmas
  • SF
  • Surface discharges


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