Author: Hall, B.D.S.
Paper Title Page
WEPWO046 First Test Results of the 4-rod Crab Cavity 2405
  • R. Calaga, L.S. Alberty Vieira, S. Calatroni, O. Capatina, E. Ciapala, L.M.A. Ferreira, E. Jensen, P. Maesen, A. Mongelluzzo, T. Renaglia, M. Therasse
    CERN, Geneva, Switzerland
  • P.K. Ambattu, D. Doherty, B.D.S. Hall, C. Lingwood
    Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
  • G. Burt
    Lancaster University, Lancaster, United Kingdom
  Funding: The HiLumi LHC Design Study (a sub-system of HL-LHC) is cofunded by the European Commission within the Framework Programme 7 Capacities Specific Programme, Grant Agreement 284404.
The first prototype crab cavity with the 4-rod geometry has undergone surface treatment and cold testing. Due to the complex geometry and unique fabrication procedure, RF validation of the field at beyond the nominal operating voltage at a sufficiently high Q0 is an important pre-requiste. Preliminary results of the first cold tests are presented along with cavity performance at different stages of the cavity processing is described.
WEPWO051 Manufacture of a Compact Prototype 4R Crab Cavity for HL-LHC 2420
  • G. Burt, B.D.S. Hall, C. Lingwood
    Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
  • L. Alberty Vieira, R. Calaga, O. Capatina
    CERN, Geneva, Switzerland
  • C.H. Boulware, D. Gorelov, T.L. Grimm, C. Krizmanich, T.S. Lamie
    Niowave, Inc., Lansing, Michigan, USA
  • C. Hill, P.A. McIntosh
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
  • R.A. Rimmer, H. Wang
    JLAB, Newport News, Virginia, USA
  Funding: This work has been funded by the EU through EUCARD and HiLumi and by STFC via the Cockcroft Institute.
A prototype compact SRF deflecting cavity has been manufactured for LHC. The base of the cavity has been machined out of large grain niobium ingot to allow the manufacture of the complex rod profile. Stiffening rods have been used to increase the mechanical strength of the outer can. Details of the cavity design and manufacture will be discussed.