Speaker
Description
At the Facility for Rare Isotope Beams (FRIB), inductively heated High Temperature Ovens (HTOs) have been developed to provide stable and reliable production of solid ion beams from the High-Power Electron Cyclotron Resonance (HPECR) ion source. Building upon previously reported HTO developments, recent efforts have focused on supporting future FRIB operations with increased beam power and on developing new species of solid beams, including molybdenum, thorium, platinum, and uranium.
Several improvements have been implemented to enhance HTO performance under extreme operating conditions. Different susceptor materials have been investigated through simulations, offline testing, and operation on the ion source. The results indicate that tantalum and molybdenum susceptors exhibit limited compatibility with the high-magnetic-field ECR plasma environment, while tungsten and rhenium-tungsten alloy susceptors demonstrate superior stability and reliability.
Additionly, a redesigned oven structure has been developed to improve thermal distribution in the oven assembly, resulting in enhanced heating efficiency and improved utilization of isotopic materials. These improvements contribute to significantly reduced material consumption. The upgraded HTO has successfully operated at temperatures exceeding 2200 °C and has demonstrated the production of refractory metal ion beams. Detailed design improvements, simulation studies, and experimental results will be presented and discussed.
Funding Agency
This work was supported by the U.S. DoE, Office of Science, under Cooperative Agreement DE-SC0023633, the State of Michigan, and Michigan State University.
| Classification | MC1: New developments and status reports |
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