Перегляд за автором "Fedorovich, O.A."

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About influence of energy of electrons and ions on speed of electron- and ion-stimulated plasmachemical etching of silicon

Fedorovich, O.A.; Kruglenko, M.P.; Polozov, B.P. (2010)

The experimental dependence of the etching rate monosilicon of self-bias voltages on the active electrode at other constant conditions in the discharge is shows. With increasing negative bias potential monosilicon etching ...
About peculiarities of self-bias voltage formation in plasma-chemical reactors with controlled magnetic fields

Hladkovskiy, V.V.; Fedorovich, O.A.; Polozov, B.P.; Kruglenko, M.P. (Вопросы атомной науки и техники, 2015)

The peculiarities of self-bias voltage formation in plasma-chemical reactors (PCR) with controlled magnetic fields have been investigated. The dependences of self-bias voltages on the values and configurations of magnetic ...
About unrealization of tungsten lines up to the ground state in the nonideal plasma of pulse discharges in water

Fedorovich, O.A. (Вопросы атомной науки и техники, 2009)

The paper considers the dynamics of tungsten impurity absorption line appearance in the plasma channel of the pulse discharge in water (PDW) during the plasma relaxation process. In the initial stage of discharge (3 µs) ...
Dependence of nonequilibrium of radiation of a pulsed discharge in water in the visible range on the electric field strength

Fedorovich, O.A. (Вопросы атомной науки и техники, 2017)

The results of experimental studies of nonequilibrium of radiation in the visible range of a nonideal plasma (NP) are presented. The plasma was produced in pulsed discharges in water (PDW) with minimum amount of impurities. ...
Dynamics of the emission spectrum of the hydrogenoxygen plasma of pulsed discharge in water in the range of the Balmer series with a minimum of impurities

Fedorovich, O.A.; Voitenko, L.M. (Вопросы атомной науки и техники, 2015)

The results of experimental investigations of the spectral distribution of radiation of hydrogen - oxygen plasma pulsed discharges in water in a minimum difference of radiation from the blackbody radiation (BBR) are given. ...
Features of plasma chemical etching of lithium tantalate substrate (LiTaO₃)

Fedorovich, O.A.; Hladkovska, O.V.; Hladkovskyi, V.V.; Nedybaliuk, A.F. (Вопросы атомной науки и техники, 2021)

The results of researches of plasma chemical treatment of lithium monocrystalline tantalate (LiTaO₃) from gas type, bias voltage (energy of chemically active ions) and from current of additional bias generator are given. ...
Features of the low energy protons interaction with molibden surface

Fedorovich, O.A.; Hladkovskyi, V.V.; Polozov, B.P.; Voitenko, L.M.; Kostin, E.G.; Rokitskyi, А.A.; Oberemok, А.S. (Вопросы атомной науки и техники, 2019)

The surface of molybdenum changes significantly after the proton irradiation process. The sputtering of the surface leads to a substantial cleaning of oxides. It is also possible to reduce oxides in a hydrogen plasma. The ...
Interaction of low-energy protons with aluminum surface

Fedorovich, O.A.; Hladkovskyi, V.V.; Polozov, B.P.; Voitenko, L.M.; Kostin, E.G.; Rokitskyi, А.A.; Nedybaliuk, A.F.; Oberemok, А.S.; Burdin, V.V. (Вопросы атомной науки и техники, 2019)

The article presents the results of researches on the protons interaction with energy of 260 eV with a surface of aluminum foil at the temperature of 300 °C, ion current density of ~ 1.5 mA/cm² with an exposure of 11 hours. ...
Modernized equipment for plasmachemical etching of insulation of p-n transition of photoelectric converters

Fedorovich, O.A.; Kruglenko, M.P.; Lukomskij, D.V.; Marinenko, A.A.; Polozov, B.P. (Вопросы атомной науки и техники, 2007)

Basic problems arising at the processing of the insulation of p-n transition of photo converters at the conditions of batch production with the use of the industrial plant "Carter" are determined. The way of elimination ...
Non-self-sustained arc discharge in vapors of constructional materials of nuclear power engineering

Borisenko, A.G.; Kostin, E.G.; Rokytskyi, O.А.; Fedorovich, O.A. (Вопросы атомной науки и техники, 2018)

The paper presents the results of experimental studies of the conditions of ignition and burning for non-selfsustained arc discharges in nickel and tantalum vapors. The investigations were carried out with the aim ...
On features of the radiation from pulsed discharges initiated by thick wires in water

Fedorovich, O.A.; Voitenko, L.M. (Вопросы атомной науки и техники, 2015)

The investigation results on the distribution of the plasma channel radiance intensity in the visible spectral region are reported. The pulsed discharge in water is initiated by the Tungsten wire (Ø 300 μm) explosion under ...
Plasma technologies for manufacturing of micro-strip metal detectors of ionizing radiation

Pugatch, V.M.; Perevertaylo, V.L.; Fedorovich, O.A.; Borisenko, A.G.; Kostin, E.G.; Kruglenko, M.P.; Polozov, B.P.; Tarasenko, L.I. (Вопросы атомной науки и техники, 2007)

The manufacturing of elements of micro-strip metal detectors (MSMD) for ionizing radiation applying plasma-chemistry technologies for etching of multilayer structures is described in details. Results obtained by using ...
Properties of the pulsed plasma-liquid systems with acoustic waves focusing

Sidoruk, S.M.; Yukhymenko, V.V.; Chernyak, V.Ya.; Marchuk, V.E.; Gavrylyuk, E.Yu.; Martysh, E.V.; Fedorovich, O.A. (Вопросы атомной науки и техники, 2012)

The plasma-liquid system with cylindrical geometry and electric pulse discharge less than 10 microseconds duration was created. The influence of plasma treatment to water pH value was investigated. Dependences of the phenol ...
Researching of acoustic waves in plasma-liquid system with pulsed discharge

Iukhymenko, V.V.; Shapoval, V.O.; Chernyak, V.Ya.; Martysh, E.V.; Fedorovich, O.A.; Tolstyh, M.Yu. (Вопросы атомной науки и техники, 2015)

The research results of acoustic signals generation by microsecond pulse discharger in cylindrical plasma-liquid system are presented. It was investigated that the gas dissolved in liquid and the duration of electrolysis ...
Source of drops-free plasma flows of monocristaline zirconium

Borisenko, A.G.; Kostin, E.G.; Rokytskyi, O.A.; Fedorovich, O.A. (Вопросы атомной науки и техники, 2019)

In experiments, the characteristics of a non-self-sustained arc discharge in pure vapors of monocrystalline zirconium were investigated. The minimum ignition power of the discharge in zirconium vapor was determined for ...
Technological studies of the plasmachemical reactor with сlosed electron drift

Fedorovich, O.A.; Kruglenko, M.P.; Polozov, B.P. (Вопросы атомной науки и техники, 2009)

Наведено результати технологічних випробувань плазмохімічного реактора (ПХР) з замкнутим дрейфом електронів, розробленого в ІЯД НАНУ. Досліджена залежність швидкості травлення монокремнію від робочого тиску в ПХР. ...
The empirical formula of dependence of factor of disintegration of nonideal plasma from electrons concentration

Fedorovich, O.A.; Voitenko, L.M. (Вопросы атомной науки и техники, 2011)

Empirical formula of the coefficient decay dependence of strongly coupled plasma from the electron density in the range from 10¹⁷ to 10²² cm⁻³ is given. The dependence of the coefficients of the decay of NP from the ...
The obtaining and properties investigation of plasma formation at pulse discharge in water aerosol

Iukhymenko, V.V.; Fedirchyk, I.I.; Chernyak, V.Ya.; Martysh, E.V.; Fedorovich, O.A.; Lisitchenko, T.E.; Belenok, N.V. (Вопросы атомной науки и техники, 2013)

The results of investigation of electro-physical and spectral properties of the impulse discharge plasma in aerosol were represented in work. The discharge current, voltage and integral spectrum of plasma were measured. ...
The qualitative analysis of the composition of the RF discharge plasma by means of mass-spectrometry

Hladkovskiy, V.V.; Polozov, B.P.; Fedorovich, O.A. (Вопросы атомной науки и техники, 2016)

In this paper presents the research results of mass-spectroscopy of the RF discharge plasma in the controlled magnetic fields. The discharge was conducted in the gases containing halogens and mixtures with the oxygen. ...
The research of double-pulse discharge in a plasma-liquid system with cylindrical geometry

Chernyak, V.Ya.; Sidoruk, S.M.; Yukhymenko, V.V.; Marchuk, V.E.; Martysh, E.V.; Fedorovich, O.A.; Andryuschenko, V.О. (Вопросы атомной науки и техники, 2012)

The results of acoustic signals generation by two consistent dischargers of microsecond duration in a cylindrical liquid system are presented. The radius/height ratio of the cylinder, made of stainless steel, is ~ 13.5. ...

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