Development of a 20 MeV dielectric-loaded test accelerator

Steven H. Gold, Allen K. Kinkead, Wei Gai, John G. Power, Richard Konecny, Chunguang Jing, Jidong Long, Sami G. Tantawi, Christopher D. Nantista, Ralph W. Bruce, Arne W. Fliflet, Marcie Lombardi, David Lewis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents a progress report on a joint project by the Naval Research Laboratory (NRL) and Argonne National Laboratory (ANL), in collaboration with the Stanford Linear Accelerator Center (SLAC), to develop a dielectric-loaded test accelerator in the magnicon facility at NRL. The accelerator will be powered by an experimental 11.424-GHz magnicon amplifier that presently produces 25 MW of output power in a ∼250-ns pulse at up to 10 Hz. The accelerator will include a 5-MeV electron injector originally developed at the Tsinghua University in Beijing, China, and can incorporate DLA structures up to 0.5 m in length. The DLA structures are being developed by ANL, and shorter test structures fabricated from a variety of dielectric materials have undergone testing at NRL at gradients up to ∼8 MV/m. SLAC has developed components to distribute the power from the two magnicon output arms to the injector and to the DLA accelerating structure with separate control of the power ratio and relative phase. RWBruce Associates, Inc., working with NRL, has investigated means to join short ceramic sections into a continuous accelerator tube by a brazing process using an intense 83-GHz beam. The installation and testing of the first dielectric-loaded test accelerator, including injector, DLA test structure, and spectrometer, should take place within the next year.

Original languageEnglish (US)
Subtitle of host publication12th Advanced Accelerator Concepts Workshop
Number of pages7
StatePublished - 2006
Externally publishedYes
EventADVANCED ACCELERATOR CONCEPTS: 12th Advanced Accelerator Concepts Workshop - Lake Geneva, WI, United States
Duration: Jul 10 2006Jul 15 2006

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceADVANCED ACCELERATOR CONCEPTS: 12th Advanced Accelerator Concepts Workshop
CountryUnited States
CityLake Geneva, WI


  • Dielectric-loaded accelerator

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

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