Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario
Accidental release of gaseous or liquid effluents is a critical issue and of a greater concern to the nuclear industry when it comes to the protection of the public and the environment. The emphasis becomes paramount when the release involves particulate of radiation particles. This paper provides a...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2019/3026046 |
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| author | S. A. Birikorang R. G. Abrefah H. K. Obeng K. Gyamfi |
| author_facet | S. A. Birikorang R. G. Abrefah H. K. Obeng K. Gyamfi |
| author_sort | S. A. Birikorang |
| collection | DOAJ |
| description | Accidental release of gaseous or liquid effluents is a critical issue and of a greater concern to the nuclear industry when it comes to the protection of the public and the environment. The emphasis becomes paramount when the release involves particulate of radiation particles. This paper provides a comprehensive insight report on an account of a research investigation carried out in addressing a radiological safety issue of Ghana’s Miniature Neutron Source Reactor (MNSR) during its core conversion project. The amounts of Strontium-90 (Sr-90) and Krypton-85 (Kr-85) effluents presumably released from the reactor hall to the surroundings and the consequential emission radiation to the working area within a 200 m radius were analyzed for a six-month working period. The objective was to estimate specifically the approximate total effective dose equivalent (TEDE) of Sr-90 and Kr-85 by considering a conjectural accident scenario using a well-recognized and user-friendly known atmospheric dispersion model before the preparatory period. The maximum TEDE value recorded at a ground deposition value of 4.6E − 01 kBq/m2 was approximately 1.80E − 02 mSv and 4.90E − 4 mSv for Sr-90 and Kr-85, respectively, at a maximum distance of 0.1 km from the source. The estimated dose values recorded were found to be within the recommended regulatory safety limits of 50 mSv for onsite workers and 1 mSv for the general public. No adverse effect was experienced with respect to human health and the environment. |
| format | Article |
| id | doaj-art-6b0111ddcb1140b3b0e46dbd04224d5c |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-6b0111ddcb1140b3b0e46dbd04224d5c2025-02-03T06:12:35ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832019-01-01201910.1155/2019/30260463026046Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident ScenarioS. A. Birikorang0R. G. Abrefah1H. K. Obeng2K. Gyamfi3University of Ghana, School of Nuclear and Allied Sciences, P. O. Box AE1, Atomic Energy, Accra, GhanaUniversity of Ghana, School of Nuclear and Allied Sciences, P. O. Box AE1, Atomic Energy, Accra, GhanaUniversity of Ghana, School of Nuclear and Allied Sciences, P. O. Box AE1, Atomic Energy, Accra, GhanaUniversity of Ghana, School of Nuclear and Allied Sciences, P. O. Box AE1, Atomic Energy, Accra, GhanaAccidental release of gaseous or liquid effluents is a critical issue and of a greater concern to the nuclear industry when it comes to the protection of the public and the environment. The emphasis becomes paramount when the release involves particulate of radiation particles. This paper provides a comprehensive insight report on an account of a research investigation carried out in addressing a radiological safety issue of Ghana’s Miniature Neutron Source Reactor (MNSR) during its core conversion project. The amounts of Strontium-90 (Sr-90) and Krypton-85 (Kr-85) effluents presumably released from the reactor hall to the surroundings and the consequential emission radiation to the working area within a 200 m radius were analyzed for a six-month working period. The objective was to estimate specifically the approximate total effective dose equivalent (TEDE) of Sr-90 and Kr-85 by considering a conjectural accident scenario using a well-recognized and user-friendly known atmospheric dispersion model before the preparatory period. The maximum TEDE value recorded at a ground deposition value of 4.6E − 01 kBq/m2 was approximately 1.80E − 02 mSv and 4.90E − 4 mSv for Sr-90 and Kr-85, respectively, at a maximum distance of 0.1 km from the source. The estimated dose values recorded were found to be within the recommended regulatory safety limits of 50 mSv for onsite workers and 1 mSv for the general public. No adverse effect was experienced with respect to human health and the environment.http://dx.doi.org/10.1155/2019/3026046 |
| spellingShingle | S. A. Birikorang R. G. Abrefah H. K. Obeng K. Gyamfi Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario Science and Technology of Nuclear Installations |
| title | Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario |
| title_full | Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario |
| title_fullStr | Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario |
| title_full_unstemmed | Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario |
| title_short | Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario |
| title_sort | impact of strontium and krypton release from ghana s mnsr following a conjectural accident scenario |
| url | http://dx.doi.org/10.1155/2019/3026046 |
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