3rd International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2012)

US/Mountain
Hotel Albuquerque at Old Town

Hotel Albuquerque at Old Town

800 Rio Grande Blvd., NW Albuquerque, New Mexico 87104 United States
André Anders (Lawrence Berkeley National Laboratory), Flyura Djurabekova (University of Helsinki), Matthew Hopkins (Sandia National Laboratories), Walter Wuensch (CERN)
Description
Vacuum arcs are a concern in essentially every vacuum electronic device. Sometimes they form the basis for device operation, but all too often they are the primary failure mode. They are often described as high voltage breakdown (HVB) and electrostatic discharge (ESD) as well. The purpose of this workshop is to bring together scientists and engineers to discuss the latest improvements in our understanding of vacuum arcs, including their initiation and evolution.

Specific topics include:
  • High electric field gradient devices (e.g., accelerators)
  • Effect of electrode material processing
  • Material/electrode damage characterization
  • Primary mechanisms for discharge
  • Diagnostic methods for interrogating breakdown, surface structure, plasma constituents, etc.
  • Modeling and simulation
We welcome new areas of investigation in addition to the above. The multidisciplinary nature of vacuum arcs and vacuum devices provides a rich environment for finding physics of shared interest from multiple sources.

Workshop website:
http://www.regonline.com/builder/site/default.aspx?EventID=1065351
    • 1
      Registration
    • 2
      Welcome reception
    • 10
    • 11
      Sensitivity of vacuum arc simulations and challenges to reproducibility.
      Speaker: Paul Crozier (SNL)
      Slides
    • 12
      Multipactor saturation in rectangular waveguides
      Speaker: Peter Stoltz (Tech-X corp.)
      Slides
    • 13
      ArcPIC 2D: Simulating arc ignition
      Speakers: Kyrre Ness Sjoebaek (University of Oslo (NO)), Lotta Maria Mether (U)
    • 14
      The influence of field emission on breakdown and Townsend discharges in microscale gaps.
      Speaker: Paul Rumbach (University of Notre Dame)
      Slides
    • 15
      Revisiting Paschen: Breakdown voltage calculations using PIC-DSMC
      Speaker: Chris Moore (SNL)
      Slides
    • 16
      Atomistic approach to the initiation of vacuum arcs near metal surfaces. Update from ISDEIV.
      Speaker: Flyura Djurabekova (University of Helsinki)
      Slides
    • 17
      Atomistic simulations of field evaporation in atom probe tomography.
      Speaker: Stefan Parviainen (University of Helsinki)
      Slides
    • 18
      Thermal and electrical modeling of micro meter sized protrusions in high gradient accelerating structures.
      Speaker: Keser Aydin (University of Maryland)
      Slides
    • 19
      Overview of the Z machine: From fusion to planetary science
      Speaker: Thomas Mattsson (SNL)
      Slides
    • 20
      Workshop Dinner Church street café

      Church street café

    • 21
      Recent high gradient experiments at SLAC.
      Speaker: Dr Valery Dolgashev (SLAC)
      Slides
    • 22
      Interrogating vacuum arc physics with advanced diagnostic methods.
      Speaker: Ed Barnat (SNL)
      Slides
    • 23
      Scanning Electron Microscope (SEM) in situ field emission measurement in Uppsala Univ.
      Speaker: Tomoko Muranaka (CERN)
      Slides
    • 24
      Search for field emission enhanced location on the electrode.
      Speaker: Yasuo Higashi (KEK)
      Slides
    • 25
      Surface roughness and field emission measurements on diamond turned Cu samples.
      Speaker: Lagotzky Stefan (Berg. Universität Wuppertal)
      Slides
    • 26
      Advanced interpretation of wormlike features in CLIC accelerating cavities.
      Speaker: Markus Aicheler (Ruhr-Universitaet Bochum)
      Slides
    • 27
      Update of the current experimental work on breakdowns in the CLIC DC spark systems.
      Speaker: Nicholas Shipman (University of Manchester (GB))
      Slides
    • 28
      Wrap-up