Персона: Жаворонкова, Ирина Андреевна
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Жаворонкова
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Ирина Андреевна
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- ПубликацияОткрытый доступThe BM@N spectrometer at the NICA accelerator complex(2024) Afanasiev, S.; Atkin, E.; Barbashina, N.; Bolozdynya, A.; Demanov, A.; Galavanov, A.; Golosov, O.; Idrisov, D.; Mamaev, M.; Parfenov, P.; Segal, I.; Shumikhin, V.; Sosnovtsev, V.; Strikhanov, M.; Taranenko, A.; Troshin, V.; Truttse, A.; Zhavoronkova, I.; Аткин, Эдуард Викторович; Барбашина, Наталья Сергеевна; Болоздыня, Александр Иванович; Деманов, Александр Евгеньевич; Галаванов, Андрей Владиевич; Голосов, Олег Владимирович; Идрисов, Дим Маратович; Мамаев, Михаил Валерьевич; Парфенов, Петр Евгеньевич; Сегаль, Илья Вадимович; Сосновцев, Валерий Витальевич; Стриханов, Михаил Николаевич; Тараненко, Аркадий Владимирович; Трошин, Валерий Владимирович; Трутце, Антон Андреевич; Жаворонкова, Ирина АндреевнаBM@N (Baryonic Matter at Nuclotron) is the first experiment operating and taking data at the Nuclotron/NICA ion-accelerating complex. The aim of the BM@N experiment is to study interactions of relativistic heavy-ion beams with fixed targets. We present a technical description of the BM@N spectrometer including all its subsystems.
- ПубликацияТолько метаданныеAlignment of the TOF-400 Detector at the BM@N Experiment(2024) Zhavoronkova, I. A.; Rumyantsev, M. M.; Жаворонкова, Ирина Андреевна
- ПубликацияТолько метаданныеEffect of the burnable absorber arrangement on the VVER-1200 fuel assembly neutronic performance ВЛИЯНИЕ РАЗМЕЩЕНИЯ ВЫГОРАЮЩЕГО ПОГЛОТИТЕЛЯ НА НЕИТРОННО-ФИЗИЧЕСКИЕ ХАРАКТЕРИСТИКИ ТЕПЛОВЫДЕЛЯЮЩЕИ СБОРКИ ВВЭР-1200(2021) Aleksandrovich, K. Y.; Adhamovich, V. R.; Vasilievich, K. V.; Andreevna, Z. I.; Rana, P. M. M.; Жаворонкова, Ирина Андреевна© 2021 Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University 'MEPhI'. All rights reserved.Optimizing the use of fuel in a power reactor is a task of current concern. However, little attention has been given to investigating the dependences among the enrichment used, the content of gadolinium oxide in fuel rods, and the life time in combination with evaluating the efficiency of using Gd loaded fuel elements with different Gd2O3 contents. The paper considers fuel assembly versions for VVER-1200 reactors having different enrichments for fuel elements, including those with Gd, and different contents of gadolinium oxide in fuel. A comparative analysis is presented for assemblies with homogeneous Gd2O3 arrangements in each fuel element and with profiled Gd2O3 arrangements. In the latter case, profiling depends on the neutron flux density in the layer which includes fuel elements with Gd. This suggests that the arrangement of gadolinium oxide proportionally to the neutron flux density will improve the FA neutronic performance. The results were obtained using SERPENT (a continuous-energy multi-purpose three- dimensional Monte Carlo particle transport code). The assemblies with the used parameters for a 12-month fuel cycle have shown the method under consideration to be inefficient for a period of over 300 eff. days. With an increased enrichment of the gadolinium oxide contained, the use of profiled versions has turned out to be more rational for longer periods (up to 900 eff. days). Therefore, this phenomenon is relevant for the reactor life whereas it proves to be insignificant for the fuel life. It is emphasized that the complex relationship between the content of gadolinium and uranium in the assembly and the effective multiplication factor for the profiled assembly and the initial assembly should be considered in detail.
- ПубликацияТолько метаданныеEffect of the burnable absorber arrangement on the VVER-1200 fuel assembly neutronic performance(2021) Vnukov, R. A.; Kolesov, V. V.; Zhavoronkova, I. A.; Kotov, Y. A.; Md Masum Rana Pramanik.; Жаворонкова, Ирина Андреевна
- ПубликацияТолько метаданныеResearch of the optimal placement of a burnable absorber in fuel assembly of a WWER-1200(2022) Vnukov, R. A.; Kotov, Y. A.; Kolesov, V. V.; Zhavoronkova, I. A.; Жаворонкова, Ирина Андреевна© 2022 Author(s).Optimization of fuel usage in a commercial fission reactor is an urgent problem at present. Meanwhile, very little effort is being made to set equations linking enrichment used, gadolinium oxide content, and the campaign length along with assessments of the efficiency of a fuel rod with gadolinium with various Gd2O3 content. In the present work, options of fuel assemblies for VVER-l200 are being considered. These fuel assemblies have different fuel rods and fuel rods with gadolinium enrichment and different total quantities of Gd203 in.fuel rods with gadolinium. Assemblies with the equal placement of Gd2O3 in.each fuel rod with gadolinium and assemblies with profiled ones were analyzed and compared, the results are given in this work. In the case of profiled rods, the profiling is performed depending on the neutron flux density in the ring where the fuel rods are located. Thus neutron-physical characteristics of fuel assembly are supposed to improve due to the gadolinium oxide placement in proportion to the neutron flux density.
- ПубликацияТолько метаданныеВыпускная квалификационная работа(2024) Жаворонкова, И. А.; Жаворонкова, Ирина Андреевна; Тараненко А.В.
- ПубликацияТолько метаданныеEffect of gadolinium absorber radial profiling in fuel pins on VVER-1000 assembly neutron-physical characteristics(2020) Vnukov, R. A.; Zhavoronkova, I. A.; Kolesov, V. V.; Karpovich, G. V.; Teplyakova, A. R.; Жаворонкова, Ирина Андреевна© Published under licence by IOP Publishing Ltd.The paper raises the problem of non-optimal use of resources. The purpose is to extend the fuel campaign. An alternative task is to increase the duration of the reactor campaign to increase the flexibility of decision-making during the operation of a nuclear reactor. The paper presents calculations of the profiling of a burnable absorber in fuel assemblies for VVER-1000 reactors. A quantitative assessment of the effect of alternative placement of gadolinium in fuel elements is made. Changes in the burnup of fuel elements in fuel assemblies are noted, as well as an advantage expressed in a change in the kinf. The results showed a strong dependence of the isotopic composition of the peripheral layer on the neutron flux density and a weak dependence of the isotopic composition of the central fuel element with gadolinium layers on the neutron flux density. The burnup when using the iterative process turned out to be impossible to align along the radius presumably due to the production of plutonium. A significant advantage of profiling a fuel cell with gadolinium is expressed in the period before the first overload, with each subsequent overload the efficiency of the technology decreases. However, kinf of the profiled assembly throughout the entire fuel campaign exceeds the kinf of the standard assembly, which indicates the efficient use of a burnable absorber.