Specify SEY limits to prevent electron cloud in the ILC Positron Damping Ring

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Goal: By October 2005 "Specify SEY limits to prevent electron cloud", information that will be necessary for making a DR configuration selection.

Draft Summary for DR Recommendation:

     Draft Summary v4 by K. Ohmi, M. Pivi, F. Zimmermann, 3-Nov-2005 

  Threshold and build-up simulation results (Exel file)

Simulations: USE THE GLOBAL PARAMETERS table, SEY repository model, BEAM SIZES: TESLA OCS OTW.

     Results:

     - Benchmarking OCS BEND SEY=1.4:                                                      31 Oct 05

       DESY (R.W.) results input file     (high photoe- rate)

       CERN (F.Z.) results more results

       SLAC (L.W.) results

       SLAC (M.P.)  results more results

     - Instability thresholds analytic benchmark                                                     19 Oct 05 - A.Wolski - K. Ohmi 

     - Compiled cloud data d=1.2 and 1.4 (Exel v3) at SLAC DR Wednesday meeting    19 Oct 05 - K. Ohmi - M. Pivi

     - Threshold in bends at SLAC DR Wednesday meeting                                       10 Oct 05 - M. Pivi

     - Clearing electrodes at SLAC DR Wednesday meeting                                      10 Oct 05 - L.Wang

     - Task Force 6 updates at DR recommendation Intl. teleconference                    04 Oct 05 - K. Ohmi / M. Pivi

     - Previous results Task force 6 Intnl. phone meetings and Snowmass

Links

      ILC WP3 Task Force 6 Web Page (CERN)

      ILC Damping Rings Web Site

   DR Recommendation SLAC/LBNL Meetings

Contacts

M. Pivi, T. Raubenheimer, L. Wang (SLAC) C. Vaccarezza (Frascati) K. Ohmi, X. Dong (KEK) D. Shulte, F. Zimmermann (CERN) R. Wanzenberg (DESY) R. Macek (LANL) A. Wolski (LBNL).

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