Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent
To calculate radiation fields in the concrete biological shield (CBS) of the VVER-1000 reactor in this work, we have developed and applied the Monte Carlo code Serpent simulation framework based on the variance reduction technique. We have quantified the radial, axial, and azimuthal variation of neu...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute for Nuclear Research, National Academy of Sciences of Ukraine
2023-09-01
|
| Series: | Ядерна фізика та енергетика |
| Subjects: | |
| Online Access: | http://jnpae.kinr.kiev.ua/24.3/Articles_PDF/jnpae-2023-24-0231-Khotiaintseva.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849695595590057984 |
|---|---|
| author | O. M. Khotiaintseva O. R. Trofymenko V. M. Khotiaintsev A. V. Nosovskyi S. E. Sholomytsky V. I. Gulik |
| author_facet | O. M. Khotiaintseva O. R. Trofymenko V. M. Khotiaintsev A. V. Nosovskyi S. E. Sholomytsky V. I. Gulik |
| author_sort | O. M. Khotiaintseva |
| collection | DOAJ |
| description | To calculate radiation fields in the concrete biological shield (CBS) of the VVER-1000 reactor in this work, we have developed and applied the Monte Carlo code Serpent simulation framework based on the variance reduction technique. We have quantified the radial, axial, and azimuthal variation of neutron and gamma-ray fluxes and the absorbed dose rate in the CBS. Using the calculation results, we estimate maximum neutron fluence and maximum absorbed dose in the VVER-1000 CBS over the period of 60 and 80 years of the reactor operation and localize the domains of highest radiation exposure. The obtained results are in good agreement with the available data on the VVER-1000 and other pressurized water reactors. We show that the fluence of neutrons with energy above 0.1 MeV decreases by half at a depth of 4 cm of concrete, and the gamma-ray absorbed dose decreases by 40 % at a depth of 13.5 cm. The outcomes from this research will help to assess the effects of prolonged irradiation of the VVER-1000 CBS, which is required for reliable risk assessment for extended operation of nuclear power plants. |
| format | Article |
| id | doaj-art-d0683a3cf88348369917b8e1f6e2d6be |
| institution | DOAJ |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-d0683a3cf88348369917b8e1f6e2d6be2025-08-20T03:19:43ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652023-09-01243231238https://doi.org/10.15407/jnpae2023.03.231Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code SerpentO. M. Khotiaintseva0O. R. Trofymenko1V. M. Khotiaintsev2A. V. Nosovskyi3S. E. Sholomytsky4V. I. Gulik5Institute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, Kyiv, Ukraine; Limited Liability Company ENERGORISK, Kyiv, UkraineTaras Shevchenko National University of Kyiv, Kyiv, UkraineInstitute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, Kyiv, Ukraine; Limited Liability Company ENERGORISK, Kyiv, UkraineLimited Liability Company ENERGORISK, Kyiv, UkraineInstitute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, Kyiv, Ukraine; Limited Liability Company ENERGORISK, Kyiv, UkraineTo calculate radiation fields in the concrete biological shield (CBS) of the VVER-1000 reactor in this work, we have developed and applied the Monte Carlo code Serpent simulation framework based on the variance reduction technique. We have quantified the radial, axial, and azimuthal variation of neutron and gamma-ray fluxes and the absorbed dose rate in the CBS. Using the calculation results, we estimate maximum neutron fluence and maximum absorbed dose in the VVER-1000 CBS over the period of 60 and 80 years of the reactor operation and localize the domains of highest radiation exposure. The obtained results are in good agreement with the available data on the VVER-1000 and other pressurized water reactors. We show that the fluence of neutrons with energy above 0.1 MeV decreases by half at a depth of 4 cm of concrete, and the gamma-ray absorbed dose decreases by 40 % at a depth of 13.5 cm. The outcomes from this research will help to assess the effects of prolonged irradiation of the VVER-1000 CBS, which is required for reliable risk assessment for extended operation of nuclear power plants.http://jnpae.kinr.kiev.ua/24.3/Articles_PDF/jnpae-2023-24-0231-Khotiaintseva.pdfconcrete biological shieldirradiated concretemonte carlo code serpentvver-1000. |
| spellingShingle | O. M. Khotiaintseva O. R. Trofymenko V. M. Khotiaintsev A. V. Nosovskyi S. E. Sholomytsky V. I. Gulik Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent Ядерна фізика та енергетика concrete biological shield irradiated concrete monte carlo code serpent vver-1000. |
| title | Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent |
| title_full | Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent |
| title_fullStr | Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent |
| title_full_unstemmed | Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent |
| title_short | Calculation of radiation fields in the VVER-1000 concrete biological shield using Monte Carlo code Serpent |
| title_sort | calculation of radiation fields in the vver 1000 concrete biological shield using monte carlo code serpent |
| topic | concrete biological shield irradiated concrete monte carlo code serpent vver-1000. |
| url | http://jnpae.kinr.kiev.ua/24.3/Articles_PDF/jnpae-2023-24-0231-Khotiaintseva.pdf |
| work_keys_str_mv | AT omkhotiaintseva calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent AT ortrofymenko calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent AT vmkhotiaintsev calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent AT avnosovskyi calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent AT sesholomytsky calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent AT vigulik calculationofradiationfieldsinthevver1000concretebiologicalshieldusingmontecarlocodeserpent |