Administrative dose control for occupationally-exposed workers in Korean nuclear power plants
Korean nuclear power plants (NPPs) have various radiation protection programs to attain radiation exposure as low as reasonably achievable (ALARA). In terms of ALARA, this paper provides a comprehensive overview of administrative dose control for occupationally-exposed workers in Korean NPPs. In add...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573319310046 |
| _version_ | 1818573763705307136 |
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| author | Tae Young Kong Si Young Kim Yoonhee Jung Jeong Mi Kim Moonhyung Cho |
| author_facet | Tae Young Kong Si Young Kim Yoonhee Jung Jeong Mi Kim Moonhyung Cho |
| author_sort | Tae Young Kong |
| collection | DOAJ |
| description | Korean nuclear power plants (NPPs) have various radiation protection programs to attain radiation exposure as low as reasonably achievable (ALARA). In terms of ALARA, this paper provides a comprehensive overview of administrative dose control for occupationally-exposed workers in Korean NPPs. In addition to dose limits, administrative dose constraints are implemented to resolve an inequity of radiation exposure in which some individuals in NPPs receive relatively higher doses than others. Occupational dose constraints in Korean NPPs are presented in this paper with the background of how those values were determined. For pressurized water reactors, 80% and 90% of the annual average limit for an effective dose, 20 mSv/y, are set as the primary and secondary dose constraints, respectively. Pressurized heavy water reactors (PHWRs) have also established the primary and secondary dose constraints corresponding to 70% and 80% of the effective dose limit, and additional constraints for tritium concentration are provided to control internal exposure in PHWRs. Follow-up measures for exceeding these administrative dose constraints are also introduced compared to exceeding the dose limits. Finally, analysis results of dose distributions show how the implementation of administrative dose constraints impacted the occupational dose distributions in Korean NPPs during the years 2009–2018. |
| first_indexed | 2024-12-15T00:17:15Z |
| format | Article |
| id | doaj.art-fcc653c4c9bb4ad5be65855f06c93064 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-15T00:17:15Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-fcc653c4c9bb4ad5be65855f06c930642022-12-21T22:42:27ZengElsevierNuclear Engineering and Technology1738-57332021-01-01531351356Administrative dose control for occupationally-exposed workers in Korean nuclear power plantsTae Young Kong0Si Young Kim1Yoonhee Jung2Jeong Mi Kim3Moonhyung Cho4Department of Nuclear Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju, 61452, Republic of Korea; Corresponding author.Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd., 70, Yuseong-daero 1312 Beon-gil, Yuseong-gu, Daejeon, 34101, Republic of KoreaCentral Research Institute, Korea Hydro & Nuclear Power Co., Ltd., 70, Yuseong-daero 1312 Beon-gil, Yuseong-gu, Daejeon, 34101, Republic of KoreaCentral Research Institute, Korea Hydro & Nuclear Power Co., Ltd., 70, Yuseong-daero 1312 Beon-gil, Yuseong-gu, Daejeon, 34101, Republic of KoreaCentral Research Institute, Korea Hydro & Nuclear Power Co., Ltd., 70, Yuseong-daero 1312 Beon-gil, Yuseong-gu, Daejeon, 34101, Republic of KoreaKorean nuclear power plants (NPPs) have various radiation protection programs to attain radiation exposure as low as reasonably achievable (ALARA). In terms of ALARA, this paper provides a comprehensive overview of administrative dose control for occupationally-exposed workers in Korean NPPs. In addition to dose limits, administrative dose constraints are implemented to resolve an inequity of radiation exposure in which some individuals in NPPs receive relatively higher doses than others. Occupational dose constraints in Korean NPPs are presented in this paper with the background of how those values were determined. For pressurized water reactors, 80% and 90% of the annual average limit for an effective dose, 20 mSv/y, are set as the primary and secondary dose constraints, respectively. Pressurized heavy water reactors (PHWRs) have also established the primary and secondary dose constraints corresponding to 70% and 80% of the effective dose limit, and additional constraints for tritium concentration are provided to control internal exposure in PHWRs. Follow-up measures for exceeding these administrative dose constraints are also introduced compared to exceeding the dose limits. Finally, analysis results of dose distributions show how the implementation of administrative dose constraints impacted the occupational dose distributions in Korean NPPs during the years 2009–2018.http://www.sciencedirect.com/science/article/pii/S1738573319310046Nuclear power plantALARADose constraintDose limitDose distribution |
| spellingShingle | Tae Young Kong Si Young Kim Yoonhee Jung Jeong Mi Kim Moonhyung Cho Administrative dose control for occupationally-exposed workers in Korean nuclear power plants Nuclear Engineering and Technology Nuclear power plant ALARA Dose constraint Dose limit Dose distribution |
| title | Administrative dose control for occupationally-exposed workers in Korean nuclear power plants |
| title_full | Administrative dose control for occupationally-exposed workers in Korean nuclear power plants |
| title_fullStr | Administrative dose control for occupationally-exposed workers in Korean nuclear power plants |
| title_full_unstemmed | Administrative dose control for occupationally-exposed workers in Korean nuclear power plants |
| title_short | Administrative dose control for occupationally-exposed workers in Korean nuclear power plants |
| title_sort | administrative dose control for occupationally exposed workers in korean nuclear power plants |
| topic | Nuclear power plant ALARA Dose constraint Dose limit Dose distribution |
| url | http://www.sciencedirect.com/science/article/pii/S1738573319310046 |
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