• A. Facco, A.I. Balabin, R. Paparella, D. Zenere
  INFN/LNL, Legnaro, Padova
• D. Berkovits, J. Rodnizki
  Soreq NRC, Yavne
• J.-L. Biarrotte, S. Bousson, A. Ponton
  IPN, Orsay
• R.D. Duperrier, D. Uriot
  CEA, Gif-sur-Yvette
• V. Zvyagintsev
  TRIUMF, Vancouver

Funding: We acknowledge the financial support of the European Community under the FP6 "Research Infrastructure Action-Structuring the European Research Area" EURISOL DS Project Contract No. 515768 RIDS.
A 1 GeV, 5 mA cw superconducting proton/H^- linac, with the capability of supplying cw primary beam to up to four targets simultaneously by means of a new beam splitting scheme, is under study in the framework of the EURISOL DS project which aims to produce an engineering-oriented design of a next generation European Radioactive beam facility. The EURISOL driver accelerator would be able to accelerate also a 100 muA 3He beam up to 2 GeV, and a 5 mA deuteron beam up to 200 MeV. The linac characteristics and the status of the beam dynamics studies will be presented.

• W. Hartung, J. Bierwagen, S. Bricker, C. Compton, J. DeLauter, P. Glennon, M. Hodek, M.J. Johnson, F. Marti, P.S. Miller, D. Norton, J. Popielarski, L. Popielarski, D. Sanderson, J. Wlodarczak, R.C. York
  NSCL, East Lansing, Michigan
• A. Facco
  INFN/LNL, Legnaro, Padova
• E.N. Zaplatin
  FZJ, Jülich

A superconducting linac is being planned for re-acceleration of exotic ions produced by the Coupled Cyclotron Facility at Michigan State University. The re-accelerator will include a gas stopper, a charge breeder, a normal conducting radio-frequency quadrupole, and two types of superconducting quarter-wave resonators (QWRs) for re-acceleration to energies of up to 3 MeV per nucleon initially, with a subsequent upgrade path to 12 MeV per nucleon. The QWRs (80.5 MHz, optimum beta = 0.041 and 0.085, made from bulk niobium) are similar to existing cavities presently used at INFN-Legnaro. The re-accelerator's cryomodules will accommodate up to 8 cavities, along with superconducting solenoids for focussing. Active and passive shielding is required to ensure that the solenoids' field does not degrade the cavity performance. First prototypes of both QWR types have been fabricated and tested. A prototype solenoid has been procured and tested. A test cryomodule has been fabricated: one QWR, one solenoid, and two other beam line elements have been installed inside. This paper will cover the re-accelerator cavity and cryomodule prototyping efforts, results so far, and future plans.

Slides