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Johnson, R.

Paper Title Page
THPPH054 Linac Coherent Light Source Undulator RF BPM System 706
 
  • R. M. Lill, L. H. Morrison, G. J. Waldschmidt, D. R. Walters
    ANL, Argonne, Illinois
  • R. Johnson, Z. Li, S. Smith, T. Straumann
    SLAC, Menlo Park, California
  
  The LCLS will be the world's first x-ray free electron laser when it becomes operational in 2009. LCLS is currently in the construction phase. The beam position monitor (BPM) system planned for the LCLS undulator will incorporate a high resolution X-band cavity BPM system described in this paper. The X-band cavity BPM system will provide high-resolution measurements of the electron beam trajectory on a pulse-to-pulse basis and over many shots. The X-band cavity BPM size, simple fabrication and high resolution make it an ideal choice for the LCLS beam position detection. We will discuss the system specifications, design, and prototype test results.