Speaker
Description
The Facility for Rare Isotope Beams (FRIB) is planning four Accelerator Improvement Projects (AIPs) during a two-month summer shutdown to mitigate beam losses induced by the stripper. The motivation for this project has been described in previous publications. The implementation of these projects is required to accelerate multiple-charge-state heavy-ion beams simultaneously as beam power on target ramps up. These projects require modification of approximately 30 meters of beamline within the FRIB tunnel and include installing larger-bore magnets and beamline components before and after the liquid lithium stripper, implementing new second-harmonic cavities, replacing the dipole chamber with a high-heat-load-rated version at Folding Segment 1, and installing new quadrupole magnets at Folding Segment 2. Effective integration of design, technical device fabrication, installation, and commissioning within a limited shutdown window requires close coordination among multiple engineering and physics teams. This paper presents the planning methodology, execution strategy, and planned performance outcomes of these upgrades to manage concurrent accelerator improvement projects within a constrained maintenance schedule.
Funding Agency
Supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics and used resources FRIB Operations as DOE Office of Science User Facility Under Award # DE-SC0023633.