Structure Breakdown 

Workshop 

SLAC, Orange Room

August 28 - 30 , 2000

• Announcement

• Workshop Poster 

Workshop Goals:

The Goal of the workshop is to review understanding of warm structure breakdown phenomena, to define common terms for comparing tests and to identify avenues for further study. 

For a partial bibliography, please view the following URL : http://www-project.slac.stanford.edu/lc/wkshp/RFBreakdwn/references/publist.htm

Schedule and Presentations:

Monday, August 28

8:30 - Operation Experience and Definition of Problem

Moderator - G. Loew (initial questions)

• Opening remarks and introduction  (C. Adolphsen) (15min)

• CERN Structure Operation Results (W. Wuensch)    (30 min)

• NLCTA Structure Operation Results (C. Adolphsen)   (30 min)

• ASTA Structure Operation Results (R. Loewen)   (20 min) 

• ASTA Waveguide Operation Results (A. Vlieks)   (20 min)

• Cell Processing Results (L. Laurent)   (30 min)

• RF Pulsed Heating Experiment (D. Pritzkau)   (20 min)

1:30 - Related Studies and Materials/Handling Issues

Moderator - M. Ross

• Experiments on field emission (H. Padamsee)   (30 min)

• NLC Structure Cleaning and Baking (20 min)

  • T. Higo 

  • J. Wang    

• Recent Experiments on Vacuum Breakdown of Oxygen-Free Copper (Y. Saito & S. Kobayashi)

• Fab. Processes Connected to Surface Characteristics (Y. Higashi) (20 min)

• Atomic Force Microscopy Study (B. Kirby)  (20 min.)

18:00 - Organizing Committee Meeting

Tuesday, August 29

8:30    Theory and New Structure Designs

Moderator - T. Raubenheimer

• Nature of Field Emission (H. Padamsee)   (30 min)

• Modeling of Breakdown Processes (P. Wilson)    (30 min)

• Avoiding Electric Field Gradient Damage (J. Haimson) (30 min)

• Low Impedance Structure Designs (30 min)
  • Z Li  
  • J. Wang   

1:30    Discussion  

Moderator - D. Burke 

• Minimization of damage potential (Igor Syratchev)

Wednesday, August 30

8:30    Further Discussion and Closeout

Moderator - M. Ross (discussion notes)

• Sketch of breakdown limits as a function of frequency and pulse length (Delahaye)

12:00    Adjourn

14:00    Visits to NLCTA and Klystron / cell test area

Organizing Committee: C. Adolphsen, M. Ross, D. Sprehn, N. Holtkamp, D. Finley, J.-P. Delahaye, N. Toge

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