Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Design of muon production target system for the RAON μSR facility in Korea

  • Jeong, Jae Young (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Jae Chang (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Yonghyun (Department of Nuclear Engineering, Hanyang University) ;
  • Pak, Kihong (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Kyungmin (Department of Nuclear Engineering, Hanyang University) ;
  • Park, Junesic (Department of Nuclear Engineering, Hanyang University) ;
  • Son, Jaebum (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Yong Kyun (Department of Nuclear Engineering, Hanyang University) ;
  • Lee, Wonjun (Institute for Basic Science (IBS)) ;
  • Lee, Ju Hahn (Institute for Basic Science (IBS))
  • Received : 2020.11.24
  • Accepted : 2021.03.26
  • Published : 2021.09.25
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Abstract

Following the launch of Rare Isotope Science Project in December 2011, a heavy ion accelerator complex in South Korea, named RAON, has since been designed. It includes a muon facility for muon spin rotation, relaxation, and resonance. The facility will be provided with 600 MeV and 100 kW (one-fourth of the maximum power) proton beam. In this study, the graphite target in RAON was designed to have a rotating disk shape and was cooled by radiative heat transfer. This cool-down process has the following advantages: a low-temperature gradient in the target and the absence of a liquid coolant cooling system. Monte Carlo simulations and ANSYS calculations were performed to optimize the target system in a thermally stable condition when the 100 kW proton beam collided with the target. A comparison between the simulation and experimental data was also included in the design process to obtain reliable results. The final design of the target system will be completed within 2020, and its manufacturing is in progress. The manufactured target system will be installed at the RAON in the Sindong area near Daejeon-city in 2021 to carry out verification experiments.

Keywords

Acknowledgement

This work was supported by the Rare Isotope Science Project of the Institute for Basic Science funded by the Ministry of Science and ICT and the NRF of Korea (2013M7A1A1075764).

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