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Kubo, K.

  
Paper Title Page
MOOCH01 Beam Based Alignment at the KEK-ATF Damping Ring 36
 
  • M. Woodley, J. Nelson, M.C. Ross, J.L. Turner
    SLAC, Menlo Park, California
  • K. Kubo
    KEK, Ibaraki
  • A. Wolski
    LBNL/AFR, Berkeley, California
  
  The damping rings for a future linear collider will have demanding alignment and stability requirements in order to achieve the low vertical emittance necessary for high luminosity. The Accelerator Test Facility (ATF) at KEK has successfully demonstrated the <5 pm vertical emittance specified for the GLC/NLC Main Damping Rings [*]. One contribution to this accomplishment has been the use of Beam Based Alignment (BBA) techniques. The mode of operation of the ATF presents particular challenges for BBA, and we describe here how we have deduced the offsets of the BPMs with respect to the quadrupoles. We also discuss a technique that allows for direct measurements of the beam-to-quad offsets.

* "Extremely Low Vertical-Emittance Beam in the Accelerator Test Facility at KEK", K. Kubo, et al., Phys.Rev.Lett.88:194801,2002

 
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