Author: Bultman, N.K.
Paper Title Page
THYO03 Design Status of ECR Ion Sources and LEBT for FRIB 172
 
  • G. Machicoane, N.K. Bultman, G. Morgan, E. Pozdeyev, X. Rao
    FRIB, East Lansing, Michigan, USA
  • J.Y. Benitez, C.M. Lyneis
    LBNL, Berkeley, California, USA
  • L.T. Sun
    IMP, Lanzhou, People's Republic of China
 
  Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
The Facility for Rare Isotope Beams at Michigan State University is currently being designed and will provide intense beams of rare isotopes for research in nuclear physics, nuclear astrophysics and study of fundamental interactions. The FRIB driver linac will accelerate all stable isotopes from Oxygen to Uranium to energies beyond 200 MeV/u at beam powers up to 400 kW. In the case of Uranium about 13.3 pμA of U33+ are required from the ion source to reach the maximum beam power on the target. Such current is at the limit of what an ECR ion source can produce and led us to design the FRIB driver linac to accelerate concurrently two charges. The ECR ion source for FRIB will be based on the VENUS ion source developed at Lawrence Berkeley National Laboratory (LBNL). Recent beam measurements done with VENUS have demonstrated that the ion source can actually produce close to 13pμA of U33+ and therefore could possibly meet the current required for FRIB in one charge state. This paper reviews the status of the FRIB ECR ion source and the modifications that have been made to the VENUS ion source design. The Low energy beam line transport (LEBT) will also be presented and discussed.
 
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