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자료유형
학술저널
저자정보
주기남 (한국원자력연구원) 양성우 (한국원자력연구원) 박승재 (한국원자력연구원) 신윤택 (한국원자력연구원)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제1호
발행연도
2021.1
수록면
344 - 350 (7page)
DOI
https://doi.org/10.1016/j.net.2020.06.026

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

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