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Utilization strategies of beam dumps for High energy FRagment Separator (HFRS) at HIAF

Dec 17, 2024
14 pages
Published in:
  • JINST 19 (2024) 12, T12004
  • Published: Dec 17, 2024
DOI:
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Abstract: (IOP)
The construction of the High Intensity heavy-ion AcceleratorFacility (HIAF) is currently underway, with the High Energy FRagmentSeparator (HFRS) serving as a critical component. The HFRS, anext-generation in-flight radioactive separator, is designed toproduce, separate, and purify rare isotopes with a maximum magneticrigidity of 25 Tm, facilitating experimental studies on veryshort-lived and neutron-rich isotopes. To protect the environmentand equipment, beam dumps are essential for interceptinghigh-intensity primary beams with different charge statespost-target. Utilizing the beam optics of the HFRS and beamparameters after the target, Geant4 ion tracking simulations wereemployed to determine the ion trajectories of both primary beam andsecondary beam. The interception efficiency for the primary beam andthe transmission efficiency for the secondary beam were calculated,providing strategies and movement range for beam dumputilization. These findings are expected to contribute to the futureoperation of the HFRS.
  • Beam Optics
  • Instrumentation for heavy-ion accelerators
  • Instrumentation for radioactive beams (fragmentation devices
  • fragment and isotope
  • separators incl. ISOL
  • isobar separators
  • ion and atom traps
  • weak-beam diagnostics
  • radioactive-beam ion sources)