Speaker
Description
High-energy particles in accelerator facilities and nuclear research reactors utilize for the basic science, materials science, and engineering application and analysis in the world. In many facilities it is required to increase the operation power level and beam intensity for the requirements for them. In such facilities the beam intercept device such as beam dump and components of structure of the system are receiving particles with the high-energy and high-intensity, and the materials are gradually degraded by the irradiation damage and high-heat loaded damage. To improve and develop the system and components it is necessary to examine and analysis these effects on materials properties. The Facility for Rare Isotope Beams (FRIB) is a U.S. Department of Energy (DOE) Office of Science user facility for rare isotope research supporting the mission of the Office of Nuclear Physics. FRIB houses a continuous wave superconducting radiofrequency (SRF) linear accelerator to accelerate all ions with atomic numbers from 1 to 92 to energies of 200 MeV/u or higher. FRIB currently operates at a beam power of 20 kW, steadily ramping up toward high-power operation. For high-power operation, a water-cooled rotating shell structure has been proposed as the design for the beam dump. The objective of this study is to evaluate these effects on the materials and material selection suitable for high-power operation of FRIB beam dump, and it will discuss and present the results of high-temperature load experiments and the radiation damage behaviour.
- This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nu-clear Physics and used resources of the Facility for Rare Isotope Beams (FRIB) Operations, which is a DOE Of-fice of Science User Facility under Award Number DE-SC0023633.