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Verification of the adequacy of domestic low-level radioactive waste grouping analysis using statistical methods
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논문 기본 정보

Type
Academic journal
Author
Lee DongJu (한국원자력연구원) Woo Hyunjong (Euclidsoft 317-20 Daedeok-daero Seo-gu Daejeon 35214 South Korea) Dae Seok Hong (한국원자력연구원) Gi Yong Kim (한국원자력연구원) Oh Sang-Hee (한국원자력연구원) Seong Wonjun (한국원자력연구원) Junhyuck Im (한국원자력연구원) Yang Jae Hwan (충남대학교)
Journal
Korean Nuclear Society Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제7호 KCI Accredited Journals SCIE
Published
2022.7
Pages
2,418 - 2,426 (9page)
DOI
10.1016/j.net.2022.01.016

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Verification of the adequacy of domestic low-level radioactive waste grouping analysis using statistical methods
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The grouping analysis is a method guided by the Korea Radioactive Waste Agency for efficient analysis of radioactive waste for disposal. In this study, experiments to verify the adequacy of grouping analysis were conducted with radioactive soil, concrete, and dry active waste in similar environments. First, analysis results of the major radionuclide concentrations in individual waste samples were reviewed to evaluate whether wastes from similar environments correspond to a single waste stream. As a result, the soil and concrete waste were identified as a single waste stream because the distribution range of radionuclide concentrations was “within a factor of 10”, the range that meet the criterion of the U.S. Nuclear Regulatory Commission for a single waste stream. On the other hand, the dry active waste was judged to correspond to distinct waste streams. Second, after analyzing the composite samples prepared by grouping the individual samples, the population means of the values of “composite sample analysis results/individual sample analysis results” were estimated at a 95% confidence level. The results showed that all evaluation values for soil and concrete waste were within the set reference values (0.1e10) when five-package and ten-package grouping analyses were conducted, verifying the adequacy of the grouping analysis
#Low-level radioactive waste disposal #Grouping analysis #Soil Concrete #Dry active waste #Composite sample

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