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Миронов, Владимир Дмитриевич

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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Миронов
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Владимир Дмитриевич
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2019 - 20202
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  • Уменьшенное изображение
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    Vacuum Chamber of the MEPhIST-1 Tokamak
    (2020) Vorobyov, G. M.; Krat, S. A.; Mironov, V. D.; Kurnaev, V. A.; Крат, Степан Андреевич; Миронов, Владимир Дмитриевич
    One of the most important structural elements of a tokamak is a vacuum discharge chamber, which satisfies specific requirements concerning the induction method of plasma generation and, accordingly, the presence of alternating magnetic fields additionally acting on the chamber. Moreover, the chamber should not only be able to create and confine a current plasma but also be able to diagnose its parameters through appropriate pipes. The small spherical tokamak being created at MEPhI for both educational and research purposes has an extensive program of such studies; therefore, the discharge chamber should not only allow fast evacuation and withstand alternating magnetic fields but also be convenient for measuring its parameters, using various diagnostics, as well as allow quick replacement of internal elements and introduction of additional power into the chamber. The paper describes the design of the vacuum chamber of the MEPhIST-1 tokamak, which meets these requirements, and presents calculations to justify the choice of material and the thickness of the characteristic elements of the chamber, and also presents the test results of the finished chamber.
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    Anomalous Electrical Conductivity and Magnetization in Fe-Cr-Ni Austenite-Martensite Alloys
    (2019) Protasov, E. A.; Petrovskii, V. N.; Mironov, V. D.; Протасов, Евгений Александрович; Петровский, Анатолий Николаевич; Миронов, Владимир Дмитриевич
    We have measured the temperature dependence of the resistivity and magnetization of a special steel of the Fe-Cr-Ni austenite-martensite class in a wide temperature range (77-1100 K). It is found that at temperatures 77-170 K, the resistivity of the material almost remains unchanged, but upon a further increase in temperature, the resistivity sharply increases, which is probably a result of disordering. In addition, anomalous behavior of resistivity with vanishing spontaneous magnetization is observed at 910 K, which is associated with the ferromagnet-paramagnet phase transition. Comparison of the measured (T) dependence with the analogous dependence for 12Kh18N10T austenite stainless steel has not revealed features typical of Fe-Cr-Ni steel.