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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">glonucsec</journal-id><journal-title-group><journal-title xml:lang="ru">Глобальная ядерная безопасность</journal-title><trans-title-group xml:lang="en"><trans-title>Global Nuclear Safety</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-414X</issn><issn pub-type="epub">2499-9733</issn><publisher><publisher-name>National Research Nuclear University "MEPhI"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26583/gns-2025-03-03</article-id><article-id custom-type="edn" pub-id-type="custom">HJDXDQ</article-id><article-id custom-type="elpub" pub-id-type="custom">glonucsec-332</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ПРОЕКТИРОВАНИЕ, ИЗГОТОВЛЕНИЕ И ВВОД В ЭКСПЛУАТАЦИЮ ОБОРУДОВАНИЯ ОБЪЕКТОВ АТОМНОЙ ОТРАСЛИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DESIGN, MANUFACTURE AND COMMISSIONING COMMISSIONING OF EQUIPMENT NUCLEAR INDUSTRY FACILITIES</subject></subj-group></article-categories><title-group><article-title>Применение кода OpenMC для бенчмарка ВВЭР-1000 со смешанной загрузкой уранового и МОКС-топлива</article-title><trans-title-group xml:lang="en"><trans-title>Application of OpenMC code to VVER-1000 MOX Сore computational benchmark</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9387-170X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плотников</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Plotnikov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант </p></bio><bio xml:lang="en"><p>Postgraduate</p></bio><email xlink:type="simple">pda1995@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8641-5885</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романенко</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanenko</surname><given-names>V. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер </p></bio><bio xml:lang="en"><p>Engineer</p></bio><email xlink:type="simple">romanenkovli@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0507-0839</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьев</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solovyev</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент </p></bio><bio xml:lang="en"><p>Assistant Professor</p></bio><email xlink:type="simple">vulture@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0334-3741</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зимин</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zimin</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент </p></bio><bio xml:lang="en"><p>Assistant Professor</p></bio><email xlink:type="simple">vgzimin@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7247-3040</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Молев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Molev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер </p></bio><bio xml:lang="en"><p>Engineer</p></bio><email xlink:type="simple">iamolev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-4760-5877</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудратов</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudratov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант </p></bio><bio xml:lang="en"><p>Postgraduate</p></bio><email xlink:type="simple">vkudratov0727@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0320-8950</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ивахин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivaxin</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант </p></bio><bio xml:lang="en"><p>Postgraduate</p></bio><email xlink:type="simple">sergey.ivakhin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1862-8838</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Джарум</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Djaroum</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант </p></bio><bio xml:lang="en"><p>Postgraduate</p></bio><email xlink:type="simple">bel.djar111215@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Национальный исследовательский ядерный университет «МИФИ»<country>Россия</country></aff><aff xml:lang="en">National Research Nuclear University MEPhI<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>09</month><year>2025</year></pub-date><volume>15</volume><issue>3</issue><fpage>26</fpage><lpage>35</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Плотников Д.А., Романенко В.И., Соловьев Д.А., Зимин В.Г., Молев И.А., Кудратов В.Н., Ивахин С.В., Джарум Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Плотников Д.А., Романенко В.И., Соловьев Д.А., Зимин В.Г., Молев И.А., Кудратов В.Н., Ивахин С.В., Джарум Б.</copyright-holder><copyright-holder xml:lang="en">Plotnikov D.A., Romanenko V.L., Solovyev D.A., Zimin V.G., Molev I.A., Kudratov V.N., Ivaxin S.I., Djaroum B.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://glonucsec.elpub.ru/jour/article/view/332">https://glonucsec.elpub.ru/jour/article/view/332</self-uri><abstract><p>В данной работе представлены результаты численного моделирования бенчмарка реактора ВВЭР-1000 со смешанной загрузкой уранового и МОКС-топлива, разработанного Агентством по Ядерной Энергии при Организации Экономического Сотрудничества и Развития (АЯЭ ОЭСР), с помощью программного комплекса OpenMC. OpenMC предназначен для моделирования процессов переноса нейтронов методом Монте-Карло и использует в качестве программного интерфейса язык программирования Python. Нейтронные сечения для различных нуклидов, необходимые для проведения расчетов, были получены с помощью баз оцененных ядерных данных ENDF/B-VII.1 и ENDF/B-VIII.0. Использование двух версий библиотек позволили провести оценку влияния выбора базы ядерных данных на ключевые нейтронно-физические параметры ВВЭР-1000. Рассчитанные значения эффективного коэффициента размножения и скорости реакции деления в тепловыделяющих сборках для различных стационарных состояний реактора ВВЭР-1000 были сопоставлены с результатами, полученными с помощью кодов MCU, RADAR и MCNP (опубликованными АЯЭ ОЭСР и, в частности, сотрудниками Агентства по Атомной Энергии Турции). Дополнительно была проведена кросс-верификация полученных результатов, для чего была построена расчетная модель бенчмарка ВВЭР-1000 с помощью кода Serpent. Полученные результаты демонстрируют хорошую сходимость с результатами других прецизионных кодов и подтверждают корректность построенных в OpenMC и Serpent расчетных моделей. Работа подтверждает возможность использования OpenMC для точного моделирования нейтронно-физических характеристик ВВЭР-1000, что актуально для задач проектирования и анализа безопасности современных ядерных энергетических установок. Методология, реализованная в данной работе, может быть использована для последующего моделирования и анализа новых конфигураций активных зон различных реакторных установок.</p></abstract><trans-abstract xml:lang="en"><p>This paper presents the results of numerical modeling of the VVER-1000 benchmark with a mixed loading of uranium and MOX fuel, developed by the Nuclear Energy Agency of the Organisation for Economic Co-operation and Development (NEA OECD), using the OpenMC code. OpenMC is a Monte Carlo-based neutron transport simulation code that employs Python as a user interface. The neutron cross sections for various nuclides required for the calculations are obtained from the ENDF/B-VII.1 and ENDF/B-VIII.0 evaluated nuclear data libraries. The use of two different nuclear data versions made it possible to assess the sensitivity of key neutronic parameters of the VVER-1000 reactor to the choice of cross-section libraries. Calculated values of the effective multiplication factor and fission reaction rates in the fuel assemblies for several stationary reactor states are compared with benchmark results obtained using MCU, RADAR, and MCNP codes (published by the NEA OECD and, in particular, by researchers from the Turkish Atomic Energy Authority). Additionally, a cross-verification of the results is carried out using an independent model of the VVER-1000 benchmark developed in the Serpent code. The results demonstrate good agreement with other high-precision codes and confirm the correctness of the OpenMC and Serpent models. The presented methodology is applicable for further modeling and analysis of new core configurations in various reactor systems</p></trans-abstract><kwd-group xml:lang="ru"><kwd>OpenMC</kwd><kwd>Serpent</kwd><kwd>ВВЭР-1000</kwd><kwd>метод Монте-Карло</kwd><kwd>моделирование</kwd><kwd>перенос нейтронов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>OpenMC</kwd><kwd>Serpent</kwd><kwd>VVER-1000</kwd><kwd>Monte Carlo method</kwd><kwd>modeling</kwd><kwd>neutron transport</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kalugin M.A., Oleinik D.S., Shkarovsky D.A. Overview of the MCU Monte Carlo Software Package. Annals of nuclear energy. 2015;82:54–62. https://doi.org/10.1016/j.anucene.2014.08.032</mixed-citation><mixed-citation xml:lang="en">Kalugin M.A., Oleinik D.S., Shkarovsky D.A. Overview of the MCU Monte Carlo Software Package. 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