nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2026-3-63-70nuc-1068Research ArticleСтатьиНЕЙТРОННАЯ АКТИВАЦИЯ И ГАЗООБРАЗОВАНИЕ В БЕРИЛЛИДАХ ТИТАНА И ХРОМА В НЕЙТРОННЫХ ПОЛЯХ РЕАКТОРОВ ДЕЛЕНИЯ И ТЕРМОЯДЕРНОГО СИНТЕЗАNEUTRON ACTIVATION AND GAS PRODUCTION IN TITANIUM AND CHROMIUM BERYLLIDES IN FISSION AND FUSION NEUTRON FIELDShttps://orcid.org/0000-0001-7587-3461СайранбаевД.SairanbayevD.

Старший научный сотрудник.

Алматы

Darkhan Sairanbayev - Senior Researcher.

Almaty

d.sairanbayev@inp.kzhttps://orcid.org/0000-0003-0304-2049ШаймерденовА.ShaimerdenovA.

Алматы

Asset Shaimerdenov - Head of Laboratory of Atomic Energy Safety Problems.

Almaty

ashaimerdenov@inp.kzhttps://orcid.org/0000-0002-9089-3409АйткуловМ.AitkulovM.

Алматы

Magzhan Aitkulov

Almaty

maitkulov@inp.kzhttps://orcid.org/0000-0003-3890-8172КульсартовТимурKulsartovT.

Алматы

Timur Kulsartov - Leading Researcher.

Almaty

tima@physics.kzhttps://orcid.org/0000-0001-6598-9305ПодойниковМ.PodoinikovM.

Усть-Каменогорск

Mikhail Podoinikov

Kazatomprom, Oskemen

PodoinikovMA@ulba.kzИнститут ядерной физикиКазахстанInstitute of Nuclear PhysicsKazakhstanУльбинский металлургический заводКазахстанUlba Metallurgical PlantKazakhstan202616102026036370Copyright © Сайранбаев Д., Шаймерденов А., Айткулов М., Кульсартов Т., Подойников М., 20262026Сайранбаев Д., Шаймерденов А., Айткулов М., Кульсартов Т., Подойников М.Sairanbayev D., Shaimerdenov A., Aitkulov M., Kulsartov T., Podoinikov M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/1068

Интерметаллидные соединения на основе бериллия рассматриваются как перспективные функциональные и конструкционные материалы для ядерных систем нового поколения. В работе исследованы нейтронно-индуцированная активация и образование газовых продуктов в титановых и хромовых бериллидах Be12Ti и Be12Cr с учетом технологических примесей. Экспериментальные гамма-спектрометрические измерения образцов, облученных в реакторе ВВР-К, сопоставлены с расчетами методом Монте-Карло. Для основных продуктов активации Sc-46, Mn-54, Fe-59 и Cr-51 получено удовлетворительное согласие расчета и эксперимента. Дополнительно выполнена расчетная оценка образования He-4, He-3, T и Li-6 в спектре D-T-нейтронов, характерном для ITER, при одинаковом интегральном флюенсе. Показано, что нейтронный спектр существенно изменяет профиль активации и газообразования, что необходимо учитывать при переносе данных реакторных испытаний на условия термоядерных установок.

Beryllium-based intermetallic compounds are considered promising functional and structural materials for advanced nuclear systems due to their favorable neutronic, thermal and activation characteristics. In this work, neutron-induced activation in titanium and chromium beryllides (Be12Ti and Be12Cr) containing technological impurities was investigated under fission and fusion neutron environments. Experimental gamma-spectrometric measurements and Monte Carlo calculations were performed for specimens irradiated in the WWR-K research reactor. Agreement between calculated and measured specific activities for the dominant activation products Sc-46, Mn-54, Fe-59 and Cr-51 confirms the applicability of the neutronics approach. Neutron-induced gas production (He-4, He-3, T and Li-6) was additionally evaluated for an ITER-relevant D-T spectrum under fixed-fluence conditions. The results demonstrate pronounced spectrum-dependent differences in activation and transmutation behaviour and provide a basis for extrapolating fission-irradiation data to fusion-relevant conditions.

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The authors declare that there are no conflicts of interest present.