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Kim SW, Park SY, Roh CH, Kim SB. High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution. NUCLEAR ENGINEERING AND TECHNOLOGY 2023. [DOI: 10.1016/j.net.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Chang N, Eun H, Won H, Kim S, Seo B, Kim Y. Effect of gamma irradiation on polypropylene yarns under air and water. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-08015-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
It is very important to minimize the waste generation for decontamination of the reactor coolant system in a nuclear facility. As an alternative to commercial decontamination technologies, an inorganic acid chemical decontamination (SP-HyBRID) process can be effectively applied to the decontamination because it can significantly reduce the waste generation. In this study, the decontamination of a contaminated reactor coolant pump shaft from a nuclear facility was conducted using the SP-HyBRID process. First, equipment for a mock-up test of the decontamination was prepared. Detailed experimental conditions for the decontamination were determined through the mock-up test. Under the detailed conditions, the contaminated shaft was successfully decontaminated. The dose rate on the shaft surface was greatly reduced from 1400 to 0.9 μSv/h, and the decontamination factor showed a very high value (>1500).
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Chang N, Eun H, Kim S, Seo B, Kim Y. Decontamination of corrosion oxides in the heat transport system of a pressurized heavy water reactor using chelate-free inorganic acid. J NUCL SCI TECHNOL 2021. [DOI: 10.1080/00223131.2021.1964404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Naon Chang
- Department of Nuclear Engineering, Hanyang University, Seoul, Republic of Korea
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea
| | - Heechul Eun
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea
- Quantum Energy Chemical Engineering, University of Science and Technology, Daejeon, Republic of Korea
| | - Seonbyeong Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea
| | - Bumkyung Seo
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea
| | - Yongsoo Kim
- Department of Nuclear Engineering, Hanyang University, Seoul, Republic of Korea
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A waste-minimized chemical decontamination process for the decontamination of a nuclear reactor coolant system. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07340-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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