FRIB, East Lansing, Michigan, USA
JLab, Newport News, Virginia, USA
INFN/LNL, Legnaro (PD), Italy
ANL, Argonne, USA
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
During the past decades, linac-based neutron-generating facilities like SNS, J-PARC, and LEDA advanced the frontier of proton beam power by an order of magnitude to 1 MW level. The Facility for Rare Isotope Beams (FRIB) driver linac currently under construction at Michigan State University will advance the frontier of heavy-ion beam power by more than two-order-of-magnitudes to 400 kW. FRIB will accelerate high intensity beams, proton to uranium, up to 200MeV/u. The accelerator system includes many cutting edge technologies that can provide a basis for this talk which will discuss how these current developments may lead to the next generation of very high intensity machines, including looking forward to projects such as the CADS, ESS, IFMIF, SARAF, and SPIRAL2.
FRIB, East Lansing, Michigan, USA
Facility for Rare Isotope Beams (FRIB) is a high-power heavy ion accelerator facility presently under construction at Michigan State University located in Michigan. FRIB consists of a CW driver linac, experimental facility, the linac accelerates ions up to uranium with the energy of 200 MeV/u and with the beam power of 400 kW. As the assumed beam power is more than two order of magnitude higher than the existing heavy ion linac facilities, various beam dynamics challenges are assumed for the driver linac. In this paper, beam dynamic challenges for FRIB driver linac and undergoing studies to address them are reviewed, which would include those related to machine protection and collimation of halos after a stripper.
FRIB, East Lansing, Michigan, USA
The Facility for Rare Isotope Beams (FRIB) requires a drive linac to produce ion species from protons to uranium which will extend the heavy ion high intensity frontier. The unique design of the twice-folded linac coupled with the functional dynamic range of beam intensities over more than 5 orders of magnitude present new challenges to beam detection and measurement, instrumentation, and machine protection systems. Additional challenges to longitudinal tuning and transverse orbit optimization of multi-charge state beams drive the design of measurement systems and techniques in the low energy linac and dispersive arc regions. Finally, beam loss monitoring and detection systems must respond within 10 microseconds to prevent catastrophic damage to beamline components from high power, heavy ion beams. We present an overview of beam diagnostic systems and detection networks that enable tuning of FRIB over the operating intensity range, while ensuring adequate machine protection. Comparisons to other proposed and existing hadron facilities will be made.