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Kirby, R. E.

Paper Title Page
WEOAC01 Secondary Electron Yield and Rectangular Groove Chamber Tests in PEP-II 1997
 
  • M. T.F. Pivi, R. E. Kirby, T. W. Markiewicz, T. O. Raubenheimer, J. Seeman, L. Wang
    SLAC, Menlo Park, California
  • F. Le Pimpec
    PSI, Villigen
  
  Funding: Work supported by the Director, Office of Science, High Energy Physics, U. S. DOE under Contract No. DE-AC02-76SF00515.

Possible remedies for the electron cloud in the Damping Ring of the International Linear collider includes conditioning of the surface and chamber with grooves. We installed chambers in PEP-II to test the secondary electron yield (SEY) of coated TiN and TiZrV NEG samples and study the effect of electron and photon conditioning in situ. We have also installed vacuum chambers with rectangular groove profile in straight sections to test this possible mitigation technique. In this paper, we will describe the PEP-II test layout, results and impact on impedance.