MeVArc 2010 Workshop

Name: MeVArc 2010 Workshop
Start: 2010-05-06T08:00:00+02:00
End: 2010-05-07T18:30:00+02:00
Location: CERN

6 May 2010, 08:00 → 7 May 2010, 18:30 Europe/Zurich

40/S2-D01 - Salle Dirac (CERN)

40/S2-D01 - Salle Dirac

CERN

115

Show room on map

Sergio Calatroni (CERN), Flyura Djurabekova (University of Helsinki), Kai Nordlund (University of Helsinki), Walter WUENSCH (CERN)

Description

Vacuum breakdowns caused by high voltages and high-power rf are extremely complex phenomena, however significant advances understanding and quantitative modeling are being made. The latest developments in theory, simulation, supporting experimental investigations and application to high-gradient device design will be covered in this workshop. The workshop seeks to bring together the diverse communities such as accelerators, plasma fusion and satellite communication which must contend with vacuum breakdown. This workshop will be preceded by a meeting on the development of high-power X-band rf structures (X-Band Structure) for CLIC.

Participants

68 View full list

Thursday 6 May
- Thu 6 May
- Fri 7 May
- Introduction and general physics 40/S2-D01 - Salle Dirac
  
  40/S2-D01 - Salle Dirac
  
  CERN
  
  115
  Show room on map
  - 1
    
    Welcome address
    
    Speaker: Jean-Pierre Delahaye (CERN)
  - 2
    
    Introduction to CLIC and breakdown in rf structures
    
    Speaker: Walter WUENSCH (CERN)
    
    Slides
  - 3
    
    Discussion
  - 4
    
    BD problem in satellites
    
    Speaker: David Raboso
  - 5
    
    Discussion
  - 6
    
    Arc surface damage in fusion reactors
    
    Speaker: Volker Rohde
    
    Slides
  - 7
    
    Discussion
  - 10:40
    
    Coffee Break and posters
  - 8
    
    Physics of arc plasma devices
    
    Speaker: Andre Anders
    
    Slides
  - 9
    
    Discussion
  - 10
    Challenges simulating low temperature collisional plasmas
    
    Speaker: Matthew Hopkins (Sandia National Laboratories)
    
    Slides
    
    4-way-solution-2D-shaped-2008-06-22.avi
    
    Ar+-3D-shaped.avi
    
    Hopkins_CERN_2010_presentation_2010-04-25.ppt
    
    proc-ids-3D-shaped-2008-06-23.avi
    
    proc_ids.avi
  - 11
    
    Discussion
  - 12
    
    Distinguishing between work function and geometric field enhancement effects in field emission
    
    Speaker: Dr Wei Gai (Argonne National Laboratory)
    
    Slides
  - 13
    
    Discussion
- 12:40
  
  Lunch
- Experiments and diagnostics 40/S2-D01 - Salle Dirac
  
  40/S2-D01 - Salle Dirac
  
  CERN
  
  115
  Show room on map
  - 14
    
    DC breakdown measurements
    
    Speaker: Mr Sergio Calatroni (CERN)
    
    Slides
  - 15
    
    Discussion
  - 16
    
    The Electric Dipole Moment of the proton in an all electric storage ring
    
    Speaker: Dr Yannis Semertzidis (BNL)
    
    Slides
  - 17
    
    Discussion
  - 18
    Breakdown experiments simulations in waveguides
    
    Speaker: Dr Valery Dolgashev (SLAC)
    
    Slides
    
    Breakdown_PIC_simulations_CERN_1402_4May2010.pdf
    
    Breakdown_PIC_simulations_CERN_1402_4May2010.pptx
    
    movies.zip
  - 19
    
    Discussion
  - 20
    
    High gradient electrodes for pulsed electron gun
    
    Speaker: Martin Paraliev (PSI)
    
    Slides
  - 21
    
    Discussion
  - 16:00
    
    Coffee break and posters
  - 22
    
    Spectroscopy of breakdowns
    
    Speaker: Jan Kovermann (III. Physikalisches Institut (B) - Rheinisch-Westfaelische Tech.)
    
    Slides
  - 23
    
    Discussion
  - 24
    
    Breakdown-related Surface Evaluation by Scanning Field Emission Microscope
    
    Speaker: Yasuo Higashi (KEK)
    
    Slides
  - 25
    
    Discussion
  - 26
    
    In-situ breakdowns in SEM
    
    Speaker: Roger Ruber (University of Uppsala)
    
    Slides
  - 27
    
    Discussion
Friday 7 May
- Thu 6 May
- Fri 7 May
- Theory and simulation 40/S2-D01 - Salle Dirac
  
  40/S2-D01 - Salle Dirac
  
  CERN
  
  115
  Show room on map
  - 28
    
    Multiscale model 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Flyura Djurabekova (University of Helsinki)
    
    Slides
  - 29
    
    Discussion 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
  - 30
    
    PIC plasma and MD simulations 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Helga Timko (Univ. of Helsinki, Fac. of Science-Unknown-Unknown)
    
    Slides
  - 31
    
    Discussion 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
  - 32
    
    Dark current calculations in RF structures 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Arno Candel (SLAC National Accelerator Laboratory)
    
    Slides
  - 33
    
    Discussion
  - 10:30
    
    Coffee break and posters 40/S2-D01 - Salle Dirac (CERN)
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
  - 34
    Arc simulations using Aleph, a PIC/DSMC code 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Paul Crozier
    
    Slides
    
    arc_simulations_using_Aleph.pdf
    
    arc_simulations_using_Aleph.ppt
    
    density_37.wmv
    
    potential_37.wmv
  - 35
    
    Discussion 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
  - 36
    
    Arc modeling at Sumy, Ukraine 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Dr Serhiy Mordyk (of Applied Physics National Academy of Sciences of the Ukraine)
    
    Slides
  - 37
    
    Discussion 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
  - 38
    
    New results from arc modeling and our workshop on Unipolar Arcs 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
    
    Speaker: Mr Jim Norem (Argonne National Lab)
    
    Slides
  - 39
    
    Discussion 40/S2-D01 - Salle Dirac
    
    40/S2-D01 - Salle Dirac
    
    CERN
    
    115
    Show room on map
- 12:30
  
  Lunch
- Pulsed surface heating experiments & Theory 40/S2-D01 - Salle Dirac
  
  40/S2-D01 - Salle Dirac
  
  CERN
  
  115
  Show room on map
  - 40
    
    Pulsed surface heating and BDR
    
    Speaker: Chris Adolphsen (SLAC)
    
    Slides
  - 41
    
    Discussion
  - 42
    
    Introduction to dislocations dynamics
    
    Speaker: Steve Fitzgerald
    
    Slides
  - 43
    
    Discussion
  - 15:00
    
    Coffee break and posters
  - 44
    
    Asperities on the surface due to dislocations activity
    
    Speaker: Aarne Pohjonen (University of Helsinki)
    
    Slides
  - 45
    
    Discussion
  - 46
    
    Metallurgy of pulsed surface heating
    
    Speaker: Markus Aicheler (Ruhr-Universitaet Bochum)
    
    Slides
  - 47
    
    Discussion
  - 48
    
    Experimental Evaluation of Magnetic Field Effects on Breakdown Rates
    
    Speaker: Prof. Sami Tantawi (SLAC)
    
    Slides
  - 49
    
    Discussion
  - 50
    
    New features observed with SEM in-lens detector in the vicinity of breakdown craters
    
    Speaker: Gonzalo Arnau Izquierdo (CERN)
    
    Slides
  - 51
    
    Disscussion
  - 52
    
    Announcementof workshop 2011
    
    Speaker: Kai Nordlund (University of Helsinki)
    
    Slides