Author: Yamazaki, Y.
Paper Title Page
MOPC46 Beam Loss Monitor System for Low-Energy Heavy-Ion FRIB Accelerators 186
  • Z. Liu, T. Russo, R.C. Webber, Y. Yamazaki, Y. Zhang
    FRIB, East Lansing, Michigan, USA
  Funding: Work is supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
Radiation transport simulations reveal shortcomings in the use of ion chambers for the detection of beam losses in low-energy, heavy-ion accelerators like FRIB. Radiation cross-talk effects due to the specific FRIB paper-clip geometry complicate locating specific points of beam loss. We describe an economical and robust solution that complements ionization chambers. A specifically designed device, the halo monitor ring (HMR), is implemented upstream of each cryomodule to detect beam loss directly. Together with fast response neutron scintillators, the new integrated BLM system satisfies both machine protection and sensitivity requirements.
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