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Щербаков, Александр Антонович

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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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Александр Антонович
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Автор: Dashanova, E. A. × Start date: 2020 ×

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  • Миниатюра недоступна
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    Adaptation of the model method for estimating sample uncertainty
    (2020) Dashanova, E. A.; Shcherbakov, A. A.; Дашанова, Екатерина Александровна; Щербаков, Александр Антонович
    © Published under licence by IOP Publishing Ltd.This approach to assessing the uncertainty of measurements of sample activity was developed taking into account the requirements of the laboratory for dosimetry of incorporated radionuclides within the framework of the Methodology for measuring the activity of uranium isotopes by the spectrometric method after extraction-chromatographic isolation from urine samples. A detailed analysis of the sources of uncertainties in the activity of the sample was carried out: the uncertainty of the chemical yield, the uncertainties in the measurements of the activity of the sample, the working radioactive solution (WRS), and the uncertainty in the volume. All uncertainties are divided into two types: type A and type B. Estimation of measurement uncertainty is based on a model approach. The procedure for estimating the uncertainty of the activity of the sample was successfully verified using the specialized software GUM Workbench Pro during their construction.
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    Development of virtual analogues of nuclear facilities in virtual reality
    (2020) Dashanova, E. A.; Zadeba, E. A.; Kiryukhin, P. K.; Pugachev, P. A.; Romanenko, V. I.; Tikhomirov, G. V.; Khomyakov, D. A.; Shcherbakov, A. A.; Yushin, I. M.; Дашанова, Екатерина Александровна; Задеба, Егор Александрович; Кирюхин, Павел Константинович; Пугачев, Павел Александрович; Романенко, Владислав Игоревич; Тихомиров, Георгий Валентинович; Хомяков, Дмитрий Андреевич; Щербаков, Александр Антонович
    © Published under licence by IOP Publishing Ltd.Using virtual reality technology - a modern trend. The nuclear industry is no exception. This article provides an overview of mathematical models used to create virtual analogue of critical assembly Godiva in virtual reality. Godiva - there is a simple example that allows to hone techniques for creating more complex virtual analogues of nuclear reactors and nuclear facilities. Mathematical models include stationary and dynamic ones. The stationary model is based on data from calculations carried out using Monte Carlo programs such as MCU, Serpent and Geant4. An approach is also described that makes it possible to calculate the reverse multiplication from the values of the effective multiplication factor for various states of the subcritical assembly. The dynamic model allows one to calculate the neutron-physical characteristics of the supercritical assembly during fast processes such as a neutron burst. In conclusion, there are other examples of virtual analogs created using similar approaches.