Multilayer high-gradient insulators

J. R. Harris, R. M. Anaya, D. Blackfield, Y. J. Chen, S. Falabella, S. Hawkins, C. Holmes, A. C. Paul, S. Sampayan, D. M. Sanders, J. A. Watson, George J Caporaso, M. Krogh

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


High voltage systems operated in vacuum require insulating materials to maintain spacing between conductors held at different potentials, and may be used to maintain a nonconductive vacuum boundary. Traditional vacuum insulators generally consist of a single material, but insulating structures composed of alternating layers of dielectric and metal can also be built. These "High-Gradient Insulators" have been experimentally shown to withstand higher voltage gradients than comparable conventional insulators. As a result, they have application to a wide range of highvoltage vacuum systems where compact size is important. This paper describes ongoing research on these structures, as well as the current theoretical understanding driving this work.

Original languageEnglish (US)
Pages (from-to)796-802
Number of pages7
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Issue number4
StatePublished - Aug 2007
Externally publishedYes


  • Accelerators
  • Flashover
  • Insulator testing
  • Pulse power systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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