Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor
In this work a parametric study was carried to increase the production of radioisotopes in the IEA-R1 research reactor. The changes proposed to implement in the IEA-R1 reactor core were the substitution of graphite reflectors by beryllium reflectors, the removal of 4 fuel elements to reduce the core...
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| Format: | Article |
| Language: | English |
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2021-07-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/1516 |
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| author | Giovanni Laranjo Stefani Frederico Antônio Genezini Thiago Augusto Santos João Manoel de Losada Moreira |
| author_facet | Giovanni Laranjo Stefani Frederico Antônio Genezini Thiago Augusto Santos João Manoel de Losada Moreira |
| author_sort | Giovanni Laranjo Stefani |
| collection | DOAJ |
| description | In this work a parametric study was carried to increase the production of radioisotopes in the IEA-R1 research reactor. The changes proposed to implement in the IEA-R1 reactor core were the substitution of graphite reflectors by beryllium reflectors, the removal of 4 fuel elements to reduce the core size and make available 4 additional locations to be occupied by radioisotope irradiation devices. The key variable analyzed is the thermal neutron flux in the irradiation devices. The proposed configuration with 20 fuel elements in an approximately cylindrical geometry provided higher average neutron flux (average increment of 12.9 %) allowing higher radioisotope production capability. In addition, it provided 4 more positions to install irradiation devices which allow a larger number of simultaneous irradiations practically doubling the capacity of radioisotope production in the IEA-R1 reactor. The insertion of Be reflector elements in the core has to be studied carefully since it tends to promote strong neutron flux redistribution in the core. A verification of design and safety parameters of the proposed core was carried out. The annual fuel consumption will increase about 17 % and more storage space for spent fuel will be required. |
| format | Article |
| id | doaj-art-af011f2d47614824bf0cf8ccae1b09d9 |
| institution | Kabale University |
| issn | 2319-0612 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-af011f2d47614824bf0cf8ccae1b09d92025-08-20T03:50:50ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122021-07-0192B (Suppl.)10.15392/bjrs.v9i2B.15161173Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactorGiovanni Laranjo Stefani0Frederico Antônio GeneziniThiago Augusto SantosJoão Manoel de Losada MoreiraUniversidade Federal do Rio de Janeiro - UFRJIn this work a parametric study was carried to increase the production of radioisotopes in the IEA-R1 research reactor. The changes proposed to implement in the IEA-R1 reactor core were the substitution of graphite reflectors by beryllium reflectors, the removal of 4 fuel elements to reduce the core size and make available 4 additional locations to be occupied by radioisotope irradiation devices. The key variable analyzed is the thermal neutron flux in the irradiation devices. The proposed configuration with 20 fuel elements in an approximately cylindrical geometry provided higher average neutron flux (average increment of 12.9 %) allowing higher radioisotope production capability. In addition, it provided 4 more positions to install irradiation devices which allow a larger number of simultaneous irradiations practically doubling the capacity of radioisotope production in the IEA-R1 reactor. The insertion of Be reflector elements in the core has to be studied carefully since it tends to promote strong neutron flux redistribution in the core. A verification of design and safety parameters of the proposed core was carried out. The annual fuel consumption will increase about 17 % and more storage space for spent fuel will be required.https://bjrs.org.br/revista/index.php/REVISTA/article/view/1516iea-r1research reactorradioisotope production |
| spellingShingle | Giovanni Laranjo Stefani Frederico Antônio Genezini Thiago Augusto Santos João Manoel de Losada Moreira Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor Brazilian Journal of Radiation Sciences iea-r1 research reactor radioisotope production |
| title | Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor |
| title_full | Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor |
| title_fullStr | Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor |
| title_full_unstemmed | Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor |
| title_short | Core parametric study for enhancing the radioisotope production in the IEA-R1 research reactor |
| title_sort | core parametric study for enhancing the radioisotope production in the iea r1 research reactor |
| topic | iea-r1 research reactor radioisotope production |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/1516 |
| work_keys_str_mv | AT giovannilaranjostefani coreparametricstudyforenhancingtheradioisotopeproductionintheiear1researchreactor AT fredericoantoniogenezini coreparametricstudyforenhancingtheradioisotopeproductionintheiear1researchreactor AT thiagoaugustosantos coreparametricstudyforenhancingtheradioisotopeproductionintheiear1researchreactor AT joaomanoeldelosadamoreira coreparametricstudyforenhancingtheradioisotopeproductionintheiear1researchreactor |