Персона: Губский, Константин Леонидович
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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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- ПубликацияОткрытый доступDiagnostic system for shock processes investigation in matter under the influence of intense laser pulses(2019) Alekseev, V. V.; Derkach, V. N.; Mikhaylyuk, A. V.; Gubskiy, K. L.; Pikalova, M. A.; Kuznetsov, A. P.; Михайлюк, Андрей Владимирович; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© 2019 Published under licence by IOP Publishing Ltd. The paper presents the diagnostic system for velocity measurements of reflecting objects in high energy physics experiments. The principle of continuous velocity measurements based on the Doppler frequency shift analysis of a probe monochromatic wave reflected by the moving surface of the sample. System is designed to measure velocity in the interval of 5-50 km/s. Powerful laser pulses expose the target and generate shock waves inside it. The back side of target is illuminated by probe laser beam at a wavelength of 660 nm. Scattered probe light collected by a lens and injected into the optical system. Two Mach-Zehnder interferometers with different reference delay etalons form a vernier measuring system. A passive channel records luminescence in the shock wave front. Spatial resolution of the optical layout is about 3 μm.
- ПубликацияОткрытый доступMultichannel laser radiation collection and transport system for particle velocity measurements in shock wave experiments(2019) Tishenko, I. Y.; Gubskiy, K. L.; Pirog, V. A.; Kazieva, T. V.; Lukyanov, K. S.; Morozov, A. A.; Kuznetsov, A. P.; Тищенко, Илья Юрьевич; Губский, Константин Леонидович; Пирог, Владимир Андреевич; Казиева, Татьяна Вадимовна; Лукьянов, Константин Сергеевич; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.VISAR type measuring laser systems are used for the determination of surface velocities in high-speed processes. Their operational characteristics mostly depends on the efficiency of collection of scattered radiation. In this paper we present results of the comparative analysis of several radiation collection schemes along with experimentally obtained data on the scheme parameters effect on collection efficiency and recording length.
- ПубликацияОткрытый доступTwo-channel interferometer system of direct optical heterodining for destruction by shock waves processes studying(2019) Gorbashova, M. A.; Gubskiy, K. L.; Glukhov, R. G.; Dyagileva, D. V.; Kuznetsov, A. P.; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.The article describes a multichannel modular system for velocity measuremens in shock physics. The two-channel time compression system is based on PDV method. It was tested in lead dusting experiments.
- ПубликацияОткрытый доступOn the proton radiography of magnetic fields in targets irradiated by intense picosecond laser pulses(2020) Ehret, M.; Santos, J. J.; Zielbauer, B.; Abe, Y.; Bukharskii, N. D.; Kochetkov, Y. V.; Gubskiy, K. L.; Kuznetsov, A. P.; Korneev, P. A.; Бухарский, Николай Дмитриевич; Кочетков, Юрий Владимирович; Губский, Константин Леонидович; Кузнецов, Андрей Петрович; Корнеев, Филипп Александрович© Published under licence by IOP Publishing Ltd.Proton radiography is a common diagnostic technique in laser-driven magnetic field generation studies. It is based on measuring proton beam deflection in electromagnetic fields induced around the target with the help of radiochromic film stacks. Unraveling information recorded in experimental radiographs and extracting the field profiles is not always a straightforward task. In this paper, some aspects of data analysis by reproducing experimental radiographs in numerical simulations are described. The approach allows determining the field strength and structure in the target area for various target geometries.
- ПубликацияОткрытый доступMetrological method for determining the surface area function of the nanohardness testers tips(2020) Kazieva, T. V.; Gubskiy, K. L.; Reshetov, V. N.; Kuznetsov, A. P.; Казиева, Татьяна Вадимовна; Губский, Константин Леонидович; Решетов, Владимир Николаевич; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.The paper describes a method for measuring the surface area function of the tips of the probes of nanohardness testers using a laser interferometer. The features of the developed system provide traceability of measurements to the standard of length through the wavelength of a stabilized source of laser radiation. In addition, it is possible to measure the parameters of the probe tip without removing it from the nanohardness tester, which allows the device not to be taken out of working condition and provides unambiguous measurements.
- ПубликацияОткрытый доступCombination of the velocity interferometer system for any reflector and the photon Doppler velocimetry methods to study transparent and absorbing condensed matter(2020) Ananev, S. Yu.; Grishin, L. I.; Kazieva, T. V.; Gubskiy, K. L.; Kuznetsov, A. P.; Tishchenko, I. Yu.; Glukhov, R. D.; Pirog, V. A.; Казиева, Татьяна Вадимовна; Губский, Константин Леонидович; Кузнецов, Андрей Петрович; Тищенко, Илья Юрьевич; Пирог, Владимир Андреевич© Published under licence by IOP Publishing Ltd.The paper proposes a method for combining photon Doppler velocimetry and a system of speed interferometers for any reflective systems, which allows one to study the behavior of transparent media under the action of powerful shock waves without the use of additional reflective surfaces. The paper presents the results of an experiment on the propagation of a shock wave in water. In this experiment, water was an absorber; however, the proposed method would also work provided that the test material is transparent and provides reflection.
- ПубликацияОткрытый доступVernier laser diagnostic system for velocity measurements at Angara-5-1 facility(2020) Laukhin, Ya. N.; Frolov, I. N.; Branitskii, A. V.; Pirog, V. A.; Tishchenko, I. Yu.; Gubskiy, K. L.; Kuznetsov, A. P.; Пирог, Владимир Андреевич; Тищенко, Илья Юрьевич; Губский, Константин Леонидович; Кузнецов, Андрей Петрович© Published under licence by IOP Publishing Ltd.The report presents a laser diagnostic system designed to analyze the behavior of a matter in extreme states and the propagation of shock waves. The research system consists of a pair of velocity interferometer systems for any reflector (VISAR), push pull and conventional VISARs, forming a vernier scheme. This configuration was designed for Angara-5-1 facility. Test experiments of metal plate acceleration using magnetic field were carried out. The velocities up to 6 km/s were obtained.