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Trilhe, T.

Paper Title Page
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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THP022 SC Nb Sputtered QWRs for the REX-ISOLDE Accelerator at CERN: Prototype Design and Manufacturing 827
 
  • M. Pasini, S. Calatroni, L.M.A. Ferreira, D. Ramos, T. Tardy, F. Thierry, T. Trilhe
    CERN, Geneva
 
 

The HIE-ISOLDE activity aims at the construction of a superconducting linac based on 101.28 MHz Nb sputtered Quarter Wave Resonators (QWRs), which will be installed downstream the present REX-ISOLDE linac. The present design considers two basic geometries of the cavities (geometric β0 = 6.26% and 10.84%) for which a mechanical, chemical treatment and Nb coating design study has been performed. We report here on the status of the prototype cavity and sputtering tests.

 
THP120 Concept Design Studies of the REX-ISOLDE Cryomodules at CERN 1081
 
  • V. Parma, S. Calatroni, N. Delruelle, J. Hansen, C. Maglioni, M. Modena, M. Pasini, T. Trilhe
    CERN, Geneva
  • S.M. Pattalwar
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
 
 

The High Intensity and Energy (HIE) proposal plans a major upgrade of the existing ISOLDE and REX-ISOLDE facilities at CERN, with the objective of substantially increasing the energy and the intensity of the delivered radioactive ion beams. In the frame of this upgrade activity, a superconducting linac, based on Nb sputtered Quarter Wave Resonators (QWRs) is proposed to be installed downstream of the present normal conducting machine. The present design of the accelerator lattice features housing of five high-beta cavities (β=10.6%) and a superconducting solenoid in a common cryomodule. In most of the existing low-energy heavy-ion installations worldwide, insulation and beam vacuum are in common, with the risk of cavity surface contamination in case of accidental leak to the cryostat vessel. Following a concept study, we report in this paper on three design options, namely cryomodules with common vacuum, with separate or with hybrid vacuum systems (the latter having a low conductance between insulation and beam vacuum) and compare them in terms of technical complexity, performance, reliability and maintainability.