Перегляд за автором "Katrechko, V.V."

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Actinides filtering out in the demo-imitation separator with a magnetic field of a given configuration

Yuferov, V.B.; Katrechko, V.V.; Ilichova, V.O.; Khizhnyak, S.N. (Вопросы атомной науки и техники, 2022)

To simulate spent nuclear fuel (SNF) cleaning up from fission products, the concept of a demonstration-imitation separator (DIS) with a plasma rotating in crossed electric and magnetic fields is being clarified. The ...
Delving into some specific features of the magnetic systems used for the plasma recycling of the spent nuclear fuel (SNF)

Yuferov, V.B.; Katrechko, V.V.; Vinnikov, D.V.; Tkachev, V.I.; Sorokina, D.D. (Вопросы атомной науки и техники, 2022)

Consideration was given to some specific issues of the development of magnetic systems intended for the SNF plasma separators to separate, extract and deposit the actinides and also to magnetic systems of a different ...
Experimental testing bench for the diagnostics of plasma generated by pulsed guns with the dielectric surface breakdown

Vinnikov, D.V.; Katrechko, V.V.; Yuferov, V.B.; Tkachev, V.I.; Petrenko, S.A.; Fomin, V.T. (Вопросы атомной науки и техники, 2021)

The experimental testing bench “ETB-PG” was designed to study the operation of plasma guns. The constructional design of plasma guns with replaceable dielectric operating on the surface sparkover basis has been proposed. ...
Features of molecular plasma SNF after heating and ionization

Yuferov, V.B.; Katrechko, V.V.; Mufel, E.V.; Svichkar, A.S.; Ilichova, V.O.; Khizhnyak, S.N.; Shariy, S.V. (Вопросы атомной науки и техники, 2014)

The analysis of the multicomponent composition of spent nuclear fuel (SNF) is presented. The possibility of SNF separation from the fission products (FP) upon heating, evaporation and ionization (at difference of the ...
Features of plasma formation for SNF magnetoplasma reprocessing at ionization stage

Katrechko, V.V.; Yuferov, V.B.; Svichkar, A.S.; Tkachova, T.I.; Shariy, S.V.; Ilichova, V.O. (Вопросы атомной науки и техники, 2016)

Stage ionization is an intermediate stage separation of spent nuclear fuel (SNF) between heating stage and magnetoplasma separation of fission products (FP) and nuclear fuel (NF) in rotating plasma. The process of plasma ...
Formation of light impurities in a hydrogen plasma at initial stage of a discharge

Yuferov, V.B.; Skibenko, E.I.; Tkachov, V.I.; Katrechko, V.V.; Svichkar, A.S. (Вопросы атомной науки и техники, 2019)

Analyzing the dynamics of density for atomic and molecular hydrogen ions, the values of atomic hydrogen and UV radiation fluxes to the walls of the plasma chamber were obtained, resulting in light impurities of carbon and ...
Grinding the spent nuclear fuel simulating materials for the magnetoplasma separation

Vinnikov, D.V.; Shulgin, N.A.; Katrechko, V.V.; Yuferov, V.B.; Sokolenko, V.I.; Tkachev, V.I.; Ponomarev, A.N.; Buravilov, I.V. (Вопросы атомной науки и техники, 2016)

Consideration is given to the three methods used for the grinding of materials simulating spent nuclear fuel, in particular underwater spark discharges, the static compression and the laser sputtering. These methods ...
Influence of the energy parameters of the primary circuit on the current characteristics of the DIN-2K accelerator

Vinnikov, D.V.; Katrechko, V.V.; Ozerov, O.M.; Tkachev, V.I.; Marchenko, S.V.; Yuferov, V.B.; Manuilenko, O.V. (Problems of Atomic Science and Technology, 2023)

Optimal voltage values were established for plasma guns and the pulsed current generator providing maximum break current values. The current values were determined for the plasma jumper formation region. The optimal time ...
Magnetic field influence on the discharge parameters of two-stage gas-metal plasma source

Shariy, S.V.; Yuferov, V.B.; Shvets, M.O.; Tkachov, V.I.; Katrechko, V.V. (Вопросы атомной науки и техники, 2016)

The discharge parameters and vacuum regimes of the two-stage gas-metal plasma source are presented for three configurations of magnetic field. Distributions of deposited flows, current and voltage characteristics of ...
On the possibility of obtaining a beam of heavy ions in the form of an “open umbrella” with subsequent deposition in the separator manifold

Yuferov, V.B.; Katrechko, V.V.; Vinnikov, D.V.; Tkachev, V.I.; Sharyi, S.V.; Ozerov, O.M.; Sorokina, D.D. (Problems of Atomic Science and Technology, 2023)

The study of SNF reprocessing is impossible without obtaining and studying a multicomponent, low-energy and complex ion beam of an “umbrella” shape. The beam is obtained from a plasma flow created in a plasma source (PS) ...
Plasma guns of an erosion type with the pulse-periodic gas-metal injection

Vinnikov, D.V.; Katrechko, V.V.; Yuferov, V.B.; Tkachev, V.I. (Problems of Atomic Science and Technology, 2022)

The design of the modular plasma guns of an erosion type that operate in the pulse-periodic mode has been described. The injection of the electrode and dielectric materials occurs due to the combination of many processes ...
Problems of impurities deducing from multicomponent media at thermal heating, ionization and rotation of plasma in crossed fields

Yuferov, V.B.; Katrechko, V.V.; Svichkar, A.S.; Shariy, S.V.; Tkachova, T.I.; Mufel, E.V.; Ilichova, V.О.; Pakhomov, А.Yu. (Вопросы атомной науки и техники, 2016)

The possibility of multicomponent mixtures separation at thermal heating, ionization and plasma rotation in relation to the spent nuclear fuel (SNF) is shown. At thermal heating it is possible to allocate up to 75% of ...
Research of the thermal desorption processes in oxide mixtures at laser effect

Katrechko, V.V.; Vinnikov, D.V.; Yuferov, V.B.; Ilichova, V.O.; Svichkar, A.S.; Buravilov, I.V.; Timofeev, V.D.; Bobrov, O.G. (Вопросы атомной науки и техники, 2020)

To investigate the physical-chemical processes occurring during the heating stage of spent nuclear fuel magneto plasma reprocessing a study of thermal desorption of oxides and oxide mixtures as SNF simulators under the ...
Small size “DI-2” accelerator with the plasma current switch and inductive energy accum ulator as a material irradiation test rig

Yuferov, V.B.; Skibenko, E.I.; Buravilov, I.V.; Svichkar, А.S.; Ponamoriev, А.N.; Katrechko, V.V.; Nikulshina, V.V. (Вопросы атомной науки и техники, 2022)

This scientific paper delves into the basic characteristics of the updated “DI-2” accelerator, i.e., currents, voltages and pulse duration as a function of a delay time between the pulses generated by the major pulse current ...
Some questions of SNF reprocessing at the stages of ionization and magnetoplasma separation in crossed fields

Yuferov, V.B.; Katrechko, V.V.; Tkachova, T.I.; Shariy, S.V.; Svichkar, A.S.; Mufel, E.V.; Ilichova, V.О.; Shvets, M.O. (Вопросы атомной науки и техники, 2015)

Possible composition of spent nuclear fuel (SNF) before and after the thermal separation stage is shown. The possibility of SNF purification from fission products (FP) at the ionization stage is analyzed. Trajectories of ...
Spatial separation of ions of a given mass range in the demo-imitation separator at the first turn of ionic trajectory

Katrechko, V.V.; Yuferov, V.B.; Ilichova, V.O.; Khizhnyak, S.N. (Вопросы атомной науки и техники, 2021)

Plasma methods, where only electricity is required, are an alternative to the PUREX process used in industry for spent nuclear fuel reprocessing. It is considered the possibility of filtering out the target ions (М = ...
The atomic-molecular processes in a hydrogen plasma at initial stage of a discharge

Yuferov, V.B.; Skibenko, E.I.; Tkachov, V.I.; Katrechko, V.V.; Svichkar, A.S. (Вопросы атомной науки и техники, 2019)

For 0-dimensional the task of a hydrogen plasma formation at initial stage of a charge is considered. For these conditions the dynamics of atomic and molecular ions density and energy balance in a hydrogen plasma are considered.
The calculations of uranium and lanthanum oxides trajectories at magnetoplasma separation stage

Yuferov, V.B.; Tkachova, T.I.; Katrechko, V.V.; Svichkar, A.S.; Ilichova, V.O.; Shariy, S.V. (Вопросы атомной науки и техники, 2017)

Trajectories of charged particles (UO₂ and La₂O₃) at magnetoplasma separation stage – in system of crossed electric and magnetic fields – are calculated. The possibilities of UO₂ separation from La₂O₃ by changes in magnetic ...
The conceptual design of a demo-imitation separatorthe model of a plasma mass filter for irradiated oxide uranium fuel

Yuferov, V.B.; Ilichova, V.O.; Katrechko, V.V.; Shariy, S.V.; Svichkar, A.S.; Shvets, M.O.; Tkachov, V.I.; Vinnikov, D.V.; Ozerov, A.N. (Вопросы атомной науки и техники, 2018)

The design of a demo-imitation separator is presented which is the model of a plasma filter for the masses of irradiated oxide uranium fuel. Expected setup productivity is ~15…20 tons/year of the material – imitator, that ...
The formation of complex chemical compounds in the spent fuel and their influence on separation processes

Yuferov, V.B.; Katrechko, V.V.; Ilichova, V.O.; Shariy, S.V.; Svichkar, A.S.; Shvets, M.O.; Buravilov, I.V.; Khizhnyak, S.N. (Вопросы атомной науки и техники, 2017)

Some problems on formation of the complex chemical compounds (uranate, zirconate, etc.) in the fuel rods during irradiation and in oxidative reactions are considered. Complex compounds in uence the separation processes at ...

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