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Bellantoni L.

PaperTitlePage
WEP41Status of 3.9 GHz superconducting RF cavity technology at Fermilab575
 
  • E. Harms, T. Arkan, L. Bellantoni, H. Carter, H. Edwards, M. Foley, I. Gonin, T. Khabiboulline, D. Mitchell, D. Olis, A. Rowe, N. Solyak
    Fermilab
 
 Fermilab is involved in an effort to assemble 3.9 GHz superconducting RF cavities into a four cavity cryomodule for use at the DESY TTF/FLASH facility as a third harmonic structure. The design gradient of the cavities is 14 MV/m. This effort involves design, fabrication, intermediate testing, assembly, and eventual delivery of the cryomodule. We report on all facets of this enterprise from design through future plans. Included will be test results of single 9-cell cavities, lessons learned, and current status. 
WEP42Status of the ILC crab cavity development579
 
  • G. Burt, A. Dexter
    Cockcroft Institute, Lancaster University
  • C. Beard, P. Goudket, P. McIntosh
    STFC Daresbury Laboratory
  • L. Bellantoni
    Fermilab
  • T. Grimm
    Niowave, Inc
  • Z. Li, L. Xiao
    SLAC
 
 The International Linear Collider (ILC) will require two dipole cavities to "crab" the electron and positron bunches prior to their collision. It is proposed to use two 9 cell SCRF dipole cavities operating at a frequency of 3.9 GHz, with a transverse gradient of 3.8MV/m in order to provide the required transverse kick. Extensive numerical modelling of this cavity and its couplers has been performed. Aluminium prototypes have been manufactured and tested to measure the RF properties of the cavity and couplers. In addition single cell niobium prototypes have been manufactured and tested in a vertical cryostat.