Nuclear Engineering and Technology

  • 제53권1호
  • /
  • Pages.344-350
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  • 2021
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Development of long-term irradiation testing technology at HANARO

  • Choo, Kee Nam (Neutron and Radioisotope Application Research Division, Korea Atomic Energy Research Institute) ;
  • Yang, Seong Woo (Neutron and Radioisotope Application Research Division, Korea Atomic Energy Research Institute) ;
  • Park, Seng Jae (Neutron and Radioisotope Application Research Division, Korea Atomic Energy Research Institute) ;
  • Shin, Yoon Taeg (Neutron and Radioisotope Application Research Division, Korea Atomic Energy Research Institute)
  • 투고 : 2020.05.11
  • 심사 : 2020.06.16
  • 발행 : 2021.01.25
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초록

As the High Flux Advanced Neutron Application Reactor (HANARO) has been recently required to support new R&D relevant to future nuclear systems requiring a much higher neutron fluence, the development of irradiation capsule technology for long-term irradiation testing was performed in three steps (3, 5, 10 dpa). At first, several design improvements of a standard capsule were suggested based on a failure analysis of the capsule and successfully applied for irradiation testing at HANARO at up to eight reactor operation cycles equivalent to 3 dpa. Based on a schematic stress analysis of the vulnerable parts of the previous capsule, an optimized design of the capsule was made for 5 dpa irradiation. The newly designed capsule was safely out-pile tested up to 450 days, which was equivalent to 5 dpa irradiation in the reactor. The test results were submitted to the Reactor Safety Review Committee of HANARO and irradiation testing for 5 dpa was approved. The capsule was also successfully out-pile tested to evaluate the possibility of irradiation testing for 10 dpa. For a higher neutron fluence exceeding 10 dpa, new capsule technologies, including a new capsule that has a different bottom design and neutron flux boosting capsule, were also suggested.

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과제정보

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (NRF-2013M2A8A1035822).

참고문헌

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