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Smith, V.

Paper Title Page
PT13 An X-Band Cavity for a High Precision Beam Position Monitor
Work supported by Dept. of Energy Contract DE-AC03-76F00515
196
 
  • R. Johnson, Z. Li, St. Smith, V. Smith
    SLAC, Stanford Linear Accelerator, Stanford, CA, USA
  • T. Naito
    KEK, High Energy Accelerator Research Organization, Ibaraki, Japan
  • J. Rifkin
    LTI, Lyncean Technologies, Inc., Palo Alto, CA, USA
 
  The next generation of accelerators will require increasingly precise control of beam position. For example designs for the next linear collider require beam-position monitors (BPMs) with 200 nm resolution. The accelerator designs also place difficult requirements on accuracy and stability. To meet these requirements a cavity BPM operating at 11.424 GHz was designed. The BPM consists of two cavities: an xy-cavity tuned to the dipole mode and a phase cavity tuned to the monopole mode. The xy-cavity uses a novel coupling scheme that (in principal) has zero coupling to the monopole mode. This report will present the mechanical design, simulations, and test results of a prototype BPM. In addition BPM designs with even higher precision will be discussed.