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Voulot, D.

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MOP028 A SC Upgrade for the REX-ISOLDE Accelerator at CERN 124
  • M. Pasini, S. Calatroni, N. Delruelle, M. Lindroos, V. Parma, T. Trilhe, D. Voulot, F.J.C. Wenander
    CERN, Geneva
  • R.M. Jones
    UMAN, Manchester
  • P.A. McIntosh
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire

The High Intensity and Energy ISOLDE (HIE-ISOLDE) proposal is a major upgrade of the existing ISOLDE and REX-ISOLDE facilities with the objective of increasing the energy and the intensity of the delivered radioactive ion beam. For the energy increase a staged construction of a superconducting linac based on sputtered quarter wave cavities is foreseen downstream of the present normal conducting linac. A funded R&D program has been launched at the end of 2007 in order to prepare a full Technical Design Report covering all the issues of such a linac, including cavity prototyping and testing, cryomodule design, beam dynamics and beam diagnostics. We report here on the status and planning of the R&D activities for the SCREX-ISOLDE linac.


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MOP029 Beam Dynamics Studies for the SCREX-ISOLDE Linac at CERN 127
  • M. Pasini, D. Voulot
    CERN, Geneva
  • M.A. Fraser, R.M. Jones
    UMAN, Manchester

For the REX-ISOLDE upgrade a superconducting linac based on 101.28 MHz Quarter Wave Resonators (QWRs) is foreseen downstream the normal conducting (NC) linac. Currently the REX-ISOLDE linac can accelerate ions with a mass to charge ratio in the range of 3 < A/q < 4.5 and up to an energy of 3 MeV/u. The upgrade aims to reach a final beam minimum energy of 10 MeV/u for A/q=4.5 in two main stages. The first stage consists of installing two cryomodules loaded with 10 cavities able to reach 5.5 MeV/u at the end of the present linac and the second consists of replacing part of the existing NC linac and adding further cryomodules. We report here on a beam dynamics study of the accelerator for the two installation stages and the transport line to the experimental station.