HB2025 - the 71st ICFA Advanced Beam Dynamics workshop on High-Intensity and High-Brightness Hadron Beams

Beam dynamics challenge for multi-charge beam acceleration in FRIB

TUIAC01

Oct 21, 2025, 8:30 AM

30m

Room C (Conference Center)

Invited Oral Presentation WGB:Beam Dynamics in Linacs TUIAC WGB invited oral

Speaker

Tomofumi Maruta (Facility for Rare Isotope Beams)

Description

Charge stripping is a highly beneficial technique in a heavy ion accelerator to improve acceleration efficiency. However, the beam after the stripping is distributed over several charge states, which leads to low stripping efficiency.
The driver linac of the Facility for Rare Isotope Beams (FRIB) at Michigan State University is designed to simultaneously accelerate multi-charge states of a heavy ion beam to overcome the low efficiency. For instance, the stripping efficiency is improved nearly four times by accelerating five charge states. In addition, two charge states acceleration to the stripper will be enabled by front-end upgrade.
In this presentation, beam dynamics for simultaneous multi-charge state beam acceleration in FRIB is discussed.

Funding Agency

U.S. Department of Energy, Office of Science, Office of Nuclear Physics and used resources of the FRIB Operations, which is a DOE Office of Science User Facility under Award Number DE-SC0023633