Персона: Агейченков, Дмитрий Григорьевич
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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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Агейченков
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Дмитрий Григорьевич
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- ПубликацияТолько метаданныеDiagnostics of ion fluxes in low-temperature laboratory and industrial plasmas(2019) Kolodko, D, V.; Ageychenkov, D. G.; Kaziev, A, V.; Leonova, K. A.; Kharkov, M. M.; Tumarkin, A. V.; Колодко, Добрыня Вячеславич; Агейченков, Дмитрий Григорьевич; Казиев, Андрей Викторович; Харьков, Максим Михайлович; Тумаркин, Александр ВладимировичWe studied the ion fluxes on metal surfaces in the inductively coupled plasma reactor as a test facility. The gas mixture of argon and nitrogen was used, with 0.44 Pa total pressure. The radiofrequency power was varied in a wide range (250-2000 W). The ion fluxes were sampled in situ using a specially designed electrostatic extractor and then analyzed with a custom-built magnetic sector mass-separator. The gas composition was independently monitored by the quadrupole analyzer. All measurements were accompanied by optical emission spectroscopy (OES). The correlations of measured optical and corpuscular data are discussed. The conversion function linking optical and corpuscular intensities for Ar/N-2 radiofrequency discharge was determined.
- ПубликацияТолько метаданныеDirect ion content measurements in a non-sputtering magnetron discharge(2019) Kaziev, A. V.; Kolodko, D. V.; Ageychenkov, D. G.; Tumarkin, A. V.; Kharkov, M. M.; Stepanova, T. V.; Казиев, Андрей Викторович; Колодко, Добрыня Вячеславич; Агейченков, Дмитрий Григорьевич; Тумаркин, Александр Владимирович; Харьков, Максим Михайлович; Степанова, Татьяна ВладимировнаIn present contribution we report the first direct measurements of ion fluxes in a nonsputtering magnetron discharge (NSMD) with Al cathode in Ar/O-2 mixtures. The diagnostic unit comprising three-electrode electrostatic lens ion extractor, magnetic sector mass-analyzer, and a vacuum electron multiplier was calibrated and then used to record the time-resolved ion counts of Al+ and Ar+ both in NSMD and arc regimes. The results clearly indicate that in NSMD the dominant species are Ar ions while Al ion signal is lower than the sensitivity limit due to noise level, in contrast to the arc discharge. The capabilities of the diagnostics setup and its sensitivity limits are discussed.
- ПубликацияТолько метаданныеAdditive production of a material based on an acrylic polymer with a nanoscale layer of zno nanorods deposited using a direct current magnetron discharge: Morphology, photoconversion properties, and biosafety(2021) Burmistrov, D. E.; Yanykin, D. V.; Paskhin, M. O.; Nagaev, E. V.; Kaziev, A. V.; Ageychenkov, D. G.; Казиев, Андрей Викторович; Агейченков, Дмитрий Григорьевич© 2021 by the authors. Licensee MDPI, Basel, Switzerland.On the basis of a direct current magnetron, a technology has been developed for producing nanoscale‐oriented nanorods from zinc oxide on an acrylic polymer. The technology makes it possible to achieve different filling of the surface with zinc oxide nanorods. The nanorods is par-tially fused into the polymer; the cross section of the nanorods is rather close to an elongated ellipse. It is shown that, with intense abrasion, no delamination of the nanorods from the acrylic polymer is observed. The zinc oxide nanorods abrades together with the acrylic polymer. Zinc oxide nano-rods luminesces with the wavelength most preferable for the process of photosynthesis in higher plants. It was shown that plants grown under the obtained material grow faster and gain biomass faster than the control group. In addition, it was found that on surfaces containing zinc oxide nano-rods, a more intense formation of such reactive oxygen species as hydrogen peroxide and hydroxyl radical is observed. Intensive formation of long‐lived, active forms of the protein is observed on the zinc oxide coating. The formation of 8‐oxoguanine in DNA in vitro on a zinc oxide coating was shown using ELISA method. It was found that the multiplication of microorganisms on the developed material is significantly hampered. At the same time, eukaryotic cells of animals grow and develop without hindrance. Thus, the material we have obtained can be used in photonics (photo-conversion material for greenhouses, housings for LEDs), and it is also an affordable and non‐toxic nanomaterial for creating antibacterial coatings.
- ПубликацияТолько метаданныеIon current optimization in a magnetron with tunable magnetic field configuration(2021) Kaziev, A. V.; Ageychenkov, D. G.; Tumarkin, A. V.; Kolodko, D. V.; Sergeev, N. S.; Kharkov, M. M.; Leonova, K. A.; Казиев, Андрей Викторович; Агейченков, Дмитрий Григорьевич; Тумаркин, Александр Владимирович; Колодко, Добрыня Вячеславич; Сергеев, Никита Сергеевич; Харьков, Максим Михайлович© 2021 Institute of Physics Publishing. All rights reserved.The response of the ion current in the substrate region to the magnetic system configuration of a circular magnetron was studied during direct current sputtering of aluminum target. The unbalancing degree induced by changing of magnets’ positions was modelled with finite element methods. The ion saturation current in the substrate region showed more than twofold variation with unbalancing degree in the range 0.6–1.2. The dependence was non-monotonic, and the system was optimized to maximize the substrate ion current. The Langmuir probe diagnostics showed plasma density ~ 1016 m–3 in the optimized magnetic configuration.