Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets
The interaction of high-current REВ with the surface of solid targets was investigated. The target material was stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas. The optical diagnostic methods were used to determine the space-time characteristics of a gas-plasma torch (GPT), formed as a re...
Saved in:
| Published in: | Вопросы атомной науки и техники |
|---|---|
| Date: | 2009 |
| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2009
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/88314 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets / V.F. Klepikov, V.V. Lytvynenko, Yu.F. Lonin, A.G. Ponomarev, O.G. Tolstolutskiy, V.V. Uvarov, V.T.Uvarov // Вопросы атомной науки и техники. — 2009. — № 1. — С. 119-121. — Бібліогр.: 6 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859775486365794304 |
|---|---|
| author | Klepikov, V.F. Lytvynenko, V.V. Lonin, Yu.F. Ponomarev, A.G. Tolstolutskiy, O.G. Uvarov, V.V. Uvarov, V.T. |
| author_facet | Klepikov, V.F. Lytvynenko, V.V. Lonin, Yu.F. Ponomarev, A.G. Tolstolutskiy, O.G. Uvarov, V.V. Uvarov, V.T. |
| citation_txt | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets / V.F. Klepikov, V.V. Lytvynenko, Yu.F. Lonin, A.G. Ponomarev, O.G. Tolstolutskiy, V.V. Uvarov, V.T.Uvarov // Вопросы атомной науки и техники. — 2009. — № 1. — С. 119-121. — Бібліогр.: 6 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | The interaction of high-current REВ with the surface of solid targets was investigated. The target material was
stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas. The optical diagnostic methods were used to determine the
space-time characteristics of a gas-plasma torch (GPT), formed as a result of the tubular microsecond REB action on the
surface of solid targets. The times of GPT formation and its spread velocity (transverse and longitudinal) for different
materials were determined. An axial focus of GPT, moving towards the beam, was found.
Досліджувалась взаємодія сильнострумового РЕП з поверхнею твердотільних мішеней, в якості котрих були
нержавіюча сталь 12Х18Н10Т, графіт, вольфрам та органічне скло. За допомогою оптичних методів діагностики
отримано просторово-часові характеристики газоплазмового факела (ГПФ), який утворювався при дії
трубчастих РЕП мікросекундної тривалості на поверхню твердотільних мішеней. Отримано час утворення
газоплазмового факела, поперечна і повздовжня швидкість його розльоту для різних матеріалів. Виявлено
утворення осьового фокуса ГПФ, який рухається назустріч пучку
Исследовалось взаимодействие сильноточного РЭП с поверхностью твердотельных мишеней, в качестве
которых служили нержавеющая сталь 12Х18Н10Т, графит, вольфрам, оргстекло. С помощью оптических
методов диагностики получены пространственно-временные характеристики газоплазменного факела (ГПФ),
образованного при воздействии трубчатых релятивистских электронных пучков микросекундной длительности
на поверхность твердотельных мишеней. Определены времена образования ГПФ, поперечная и продольная
скорости его разлета для различных материалов. Обнаружено образование осевого фокуса ГПФ, который
распространяется навстречу пучку.
|
| first_indexed | 2025-12-02T09:02:07Z |
| format | Article |
| fulltext |
DYNAMICS OF THE GAS-PLASMA TORCH FORMED BY THE HIGH-
CURRENT ELECTRON BEAM ACTION ON SOLID TARGETS
V.F. Klepikov∗, V.V. Lytvynenko∗, Yu.F. Lonin, A.G. Ponomarev,
O.G. Tolstolutskiy, V.V. Uvarov, V.T.Uvarov
NSC “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine;
∗Institute of Electrophysics and Radiation Technologies of NASU,
Kharkov, Ukraine
The interaction of high-current REВ with the surface of solid targets was investigated. The target material was
stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas. The optical diagnostic methods were used to determine the
space-time characteristics of a gas-plasma torch (GPT), formed as a result of the tubular microsecond REB action on the
surface of solid targets. The times of GPT formation and its spread velocity (transverse and longitudinal) for different
materials were determined. An axial focus of GPT, moving towards the beam, was found.
РACS: 79.20.Kz
INTRODUCTION
Interaction between the concentrated energy fluxes
and the material is accompanied by many physical
phenomena: material heating and evaporation, gas-plasma
torch (GPT) [1] formation and expansion, vapor
condensation, chemical transformations, phase
composition change, radiation defect formation, shock
wave arising, high pressure appearance etc [2,3]. This
wide range of phenomena is extending due to the factors
influencing on the energy transport to the target material.
Application of diagnostic optical methods at the
accelerator MIG-1 [4] has provided the most complete
information about the GPT spread dynamics under action
of tubular REB on the solid targets. The research data can
be useful for investigations on the interaction of
concentrated plasma flows and charged particles with
first-wall materials and divertor plates.
1. RESEARCH TECHNIQUE
AND EXPERIMENTAL PROCEDURE
To investigate the space-time characteristics of GPT
we used the field density visualization method on the base
of geometrical deviations of parallel light beams on
optical inhomogeneities – schlieren method [5] and the
method of high-speed/fast photographing.
Fig.1 presents the diagram of the experiment on the
optical diagnostics of the gas-plasma torch obtained by
these methods. In the experiment both the disk target and
the combined target were irradiated with the tubular high-
current REB having the following parameters: energy ~
0.5 MeV, current ~ to 4 kA, current pulse duration of (2…
5)·10-6 s. The followings samples were investigated:
stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas.
The velocities of GPT and target material liquid
phase spread in the longitudinal and transverse directions
were determined from the shadow photographs by
measuring the opacity zone boundary displacement for a
laser probe radiation with a wave length of 0.53 µm and
an exposure time of 20 s. The radiation of a laser
LTI-PCH was transformed by the optical system
(telescopes with a focal distance of 750 mm), so that the
space before the target be illuminated by the parallel
luminous flux, and the interaction space image be
projected onto the recording element (photographic film).
1
––
6
2
2
5
5 4 4
3
3
1 2
1 3
1 1
1 0 9
6
7
8
Fig.1. Scheme of optical diagnostics: 1 – SPhR-2М;
2 – mirror; 3 – Rogowski loop; 4 – solenoid; 5 – window;
6 – telescope; 7 – laser LTI-PCH -5; 8 – target-collector;
9 – tubular insertion; 10 – cathode; 11 – anode;
12 – high-voltage generator; 13 – voltage divider
The delay time of light radiation generation in relation
to the time of REB-target interaction beginning was
varying to obtain the pictures of zones, opaque to a light
probe radiation in different instants of time.
The space-time characteristics of GPT, formed as a
result of the high-current REB action onto the solid
targets were also measured by means of a high-speed
photorecorder SPhR-2М, working in the mode of
continuous scan.
The optical radiation output from the interaction
volume has been carried out through the slits of 1.5 cm
width and 8.0 cm height, located on the opposite sides of
a vacuum chamber. The magnetic field is weighted down
in the area of slits was insignificant (to 10 %), that
practically has no influence on the quality of the
transported high-current REB [6].
Thus, the electron beam was reliably closed on the
grounded anode without distortions of current
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2009. № 1. 119
Series: Plasma Physics (15), p. 119-121.
characteristics. And the character of the tubular high-
current REB interaction with combined targets and disk
targets was almost unchangeable.
2. EXPERIMENTAL RESULTS
2.1. GPT SPREAD FROM GRAPHITE
The shadowgraphs of the tubular high-current REB
interaction with graphite targets, made in the form of disk,
and as a combined target, are shown in Fig.2a. It is seen
that GPT forming and its spread begins only 5·10-6 s after
the collector current pulse start (beam arrival on the
target) and continues during long time > 1.5·10-5 s after
the pulse ceasing. The measured longitudinal velocity of
GPT spread from the graphite target was (0.44…
1.0)·105 cm/s, and the transverse velocity was measured
by shadowgraphs on the combined target (Fig.2b) as it
can not be estimated on the disk target because its central
area is shaded for observation by the ring GPT. The
graphite strip of 5 mm width was fastened at a distance of
50 mm from the disk
Fig.2. Flying away of GPT from a graphite target:
a− disk; b − strip
In the point of REB impact on the graphite strip-target
(Fig.2b), 3.7 µs after, one can observe a brightly glowing
heat-penetration zone having a depth of 0.7 mm and a
width of 1.8 mm (the width of the tubular beam ring is
1.0 mm).
2.2. GPT SPREAD FROM STEEL 12Х18Н10Т
Shadowgraphs obtained for the tubular REB
interaction with a target made from steel 12Х18Н10Т
(Fig. 3) differ sharply from the shadowgraphs obtained on
graphite. There is no a brightly glowing heat-penetration
zone in the point of beam impact on the stainless steel,
and the GPT formation and spread occurs much more
earlier than in 2·10-6 s after the REB current pulse start
and continues more than 3.5·10-5 s.
Fig.3. GPT spread from steel 12Х18Н10Т (strip target)
As is seen from the shadow photographs in Fig. 3, the
measured spread velocities of GPT made of 12Х18Н10Т
steel are several times higher than the spread velocities of
GPT from graphite. So, the longitudinal spread velocity
of GPT from steel 12Х18Н10Т is in the range (0.8…
4.0)·105 cm/s, and the transverse one is in the range
(1.25…2.15)·105 cm/s.
However, the main difference in the shadowgraphs,
obtained on irradiated steel 12Х18Н10Т under irradiation,
consists in the following: 8 µs after the current pulse start
in the central axial zone, where the beam has no effect on
the target, a zone arises being first narrow and
subsequently expanding (GPT axial focus) and, also,
opaque to the laser probe radiation(λ = 0.53 µm), which
exists during long time ~ 2·10-5 s.
The shadowgraphs in Fig. 4 represent the front part of
GPT from the target of steel 12Х18Н10Т (in the form of a
strip) and the rear part of the central axial GPT. It is seen,
that the central axial GPT, at the beginning of GPT is a
very heated gas of a high density and partially ionized
with atoms of target material. As a result, the GPT spread
occurs with high velocities, and due to the recoil
momentum a powerful cylindrical shock wave arises. The
shock wave front propagates from the REB impact point
on the target with velocities of (0.5…4)·105 cm/s.
Z, mm
Fig.4. Leading edge of flying away of GPT from steel of
12Х18Н10Т time of delay of tз = 8.5 µs:
a- 5 mm, b -10 mm, c-15 mm, d -16.5 mm
The measured velocities of longitudinal and lateral
expansion of this axial zone were (5…7)·105 cm/s and
(1…2)·105 cm/s respectively.
Similar shadowgraphs with an opaque zone in the
near-axial area of the beam at the target surface were also
obtained for the interaction between the tubular REB and
the tungsten targets and plexiglas targets.
2.3. SCANNING PHOTOGRAPHIC RECORDS OF
THE GLOW FROM STEEL 12Х18Н10Т
The dynamics of GPT forming and spreading was
determined from the scanning photographic records
(SPhR) obtained during the tubular REB action on the
disk targets and combined targets of (1…10) mm
thickness.
Photographic scans obtained at different distances of
the recorder limiting slit from the strip-target made from
steel 12Х18Н10Т are shown in Fig.5.
Fig.5. Photographic scans of GPT glowing from steel
12Х18Н10Т at different distances of the recorder slit
from the strip- target surface: a) z=0 mm,
b) z = 7.5 mm, c) z = 15 mm (1 div = 2 µs)
The GPT glow arises at the target surface in the point
of tubular REB action. After 7·10-6 s (for steel
12Х18Н10Т), i.e. simultaneously with formation of a
120
ba
zone, opaque to the laser probing radiation (λ = 0.53 µm),
in the central axial part, that is seen in the shadow
photographic scans, a bright glow is recorded which is
continues during about 2·10-5 s and expands in the
transverse direction with a velocity of 1.2·105 m/s.
Displacement of the limiting slit of the photorecorder
SPhR-2М to different distances from the target surface
has shown that at the beginning of forming (in the
moment of time 7·10-6 s) the glow area of the central axial
GPT has a diameter equal to ~ 10 mm, and it is limited to
25 mm. in the longitudinal direction. The diameter of the
tubular REB is equal to 30 mm.
3. CONCLUSIONS
The diagnostic optical methods were applied to
investigate the processes of microsecond REB interaction
with the surface of solid targets. The longitudinal and
transverse velocities of GPT spread are determined. It is
shown that the velocities of GPT spread from steel
12Х18Н10Т are several times higher than the GPT spread
velocities for graphite, the REB parameters being
unchangeable.
The mechanism of GPT generation and expansion
under action of a tubular high-current REB (the power
density equals to ~ 108…1010 W/cm2) on the surface of
solid targets is involved by the irradiated surface ablation
due to its superheating, melting and evaporation and by
the formation of powerful cylindrical shock waves, the
fronts of which are converging on the drift chamber axis
and form a gas-plasma focus.
The glow, recorded in SPR records, is a very heated
gas and plasma with excited and partially ionized atoms
of the target material. The GPT focus also is a heated gas-
plasma but with higher values of density and temperature,
as compared to the near-target GPT. A maximum of the
GPT focus beginning from 8 µs after its formation and
during all the time of existence (to 1.5·10-5 s) does not
change its position and is at a distance of (2…3) mm from
the surface of the target (12Х18Н10Т) under irradiation
up to the spread start with a velocity of ~ 4·105 cm/s. The
brightest glow arises on the drift chamber axis where the
beam in the form of cylinder is absent.
It has been established that the GPT spread from steel
12Х18Н10Т begins ~ 2 µs after the current pulse start.
Just this time determines the lifetime of the metastable
state as an ablation precursor.
REFERENCES
1.J. Dudertstadt, G. Moses. Inertial nuclear fusion. М.:
“Energoatomizdat”, 1984, p.141–142 (in Russian).
2.Ya.B. Zeldovich, Yu.R. Rayzer. Physics of shock waves
and high-temperature hydrodynamic phenomena. М.:
“Nauka”, 1966 (in Russian).
3.B.А. Demidov, А.I. Martynov. Experimental
investigation of shock waves excited by high-current
relativistic electron beam in metals // Zhurnal
Ehksperimental’noj i Tekhnicheskoj Fiziki. 1981, N2,
p.729–744 (in Russian).
4.V.Т. Uvarov, Yu.V. Tkach, N.P. Gadetsky et al.
Production of microsecond high-current beams of a
high efficiency: Preprint. Kharkov: Institute of Physics
and Technology, М.: “TsNII AtomInform”, 1984 (in
Russian).
5.D. Holder, D. Nort. Shadow methods in aerodynamics.
М.: “Mir“, 1966 (in Russian).
6.А.М. Egorov, V.F. Klepikov, А.G. Ponomaryov,
А.G. Tolstolutsky, V.V. Uvarov, V.Т. Uvarov. Optical
diagnostics of the collector plasma // Visnyk
Kharkivs’kogo Natsionalnogo Universitetu. Series:
Physics:”Nuclei, particle, fields”. 2001, N 510, Part
1(13), p.62–67 (in Ukrainian).
Article received 2.10.08
ДИНАМИКА ГАЗОПЛАЗМЕННОГО ФАКЕЛА ПРИ ВОЗДЕЙСТВИИ
СИЛЬНОТОЧНЫХ РЭП НА ТВЕРДОТЕЛЬНЫЕ МИШЕНИ
В.Ф. Клепиков, В.В. Литвиненко, Ю.Ф. Лонин, А.Г. Пономарев,
А.Г. Толстолуцкий, В.В. Уваров, В.Т. Уваров
Исследовалось взаимодействие сильноточного РЭП с поверхностью твердотельных мишеней, в качестве
которых служили нержавеющая сталь 12Х18Н10Т, графит, вольфрам, оргстекло. С помощью оптических
методов диагностики получены пространственно-временные характеристики газоплазменного факела (ГПФ),
образованного при воздействии трубчатых релятивистских электронных пучков микросекундной длительности
на поверхность твердотельных мишеней. Определены времена образования ГПФ, поперечная и продольная
скорости его разлета для различных материалов. Обнаружено образование осевого фокуса ГПФ, который
распространяется навстречу пучку.
ДИНАМІКА ГАЗОПЛАЗМОВОГО ФАКЕЛА ПРИ ВПЛИВІ
СИЛЬНОСТРУМОВИХ РЕП НА ТВЕРДОТІЛЬНІ МІШЕНІ
В.Ф. Клепіков, В.В. Литвиненкo, Ю.Ф. Лонін, А.Г. Пономарьов,
О.Г. Толстолуцький, В.В. Уваров, В.Т. Уваров
Досліджувалась взаємодія сильнострумового РЕП з поверхнею твердотільних мішеней, в якості котрих були
нержавіюча сталь 12Х18Н10Т, графіт, вольфрам та органічне скло. За допомогою оптичних методів діагностики
отримано просторово-часові характеристики газоплазмового факела (ГПФ), який утворювався при дії
трубчастих РЕП мікросекундної тривалості на поверхню твердотільних мішеней. Отримано час утворення
газоплазмового факела, поперечна і повздовжня швидкість його розльоту для різних матеріалів. Виявлено
утворення осьового фокуса ГПФ, який рухається назустріч пучку.
121
DYNAMICS OF THE GAS-PLASMA TORCH FORMED BY THE HIGH-CURRENT ELECTRON BEAM ACTION ON SOLID TARGETS
2. EXPERIMENTAL RESULTS
3. CONCLUSIONS
REFERENCES
|
| id | nasplib_isofts_kiev_ua-123456789-88314 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-12-02T09:02:07Z |
| publishDate | 2009 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Klepikov, V.F. Lytvynenko, V.V. Lonin, Yu.F. Ponomarev, A.G. Tolstolutskiy, O.G. Uvarov, V.V. Uvarov, V.T. 2015-11-11T19:54:15Z 2015-11-11T19:54:15Z 2009 Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets / V.F. Klepikov, V.V. Lytvynenko, Yu.F. Lonin, A.G. Ponomarev, O.G. Tolstolutskiy, V.V. Uvarov, V.T.Uvarov // Вопросы атомной науки и техники. — 2009. — № 1. — С. 119-121. — Бібліогр.: 6 назв. — англ. 1562-6016 РACS: 79.20.Kz https://nasplib.isofts.kiev.ua/handle/123456789/88314 The interaction of high-current REВ with the surface of solid targets was investigated. The target material was stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas. The optical diagnostic methods were used to determine the space-time characteristics of a gas-plasma torch (GPT), formed as a result of the tubular microsecond REB action on the surface of solid targets. The times of GPT formation and its spread velocity (transverse and longitudinal) for different materials were determined. An axial focus of GPT, moving towards the beam, was found. Досліджувалась взаємодія сильнострумового РЕП з поверхнею твердотільних мішеней, в якості котрих були нержавіюча сталь 12Х18Н10Т, графіт, вольфрам та органічне скло. За допомогою оптичних методів діагностики отримано просторово-часові характеристики газоплазмового факела (ГПФ), який утворювався при дії трубчастих РЕП мікросекундної тривалості на поверхню твердотільних мішеней. Отримано час утворення газоплазмового факела, поперечна і повздовжня швидкість його розльоту для різних матеріалів. Виявлено утворення осьового фокуса ГПФ, який рухається назустріч пучку Исследовалось взаимодействие сильноточного РЭП с поверхностью твердотельных мишеней, в качестве которых служили нержавеющая сталь 12Х18Н10Т, графит, вольфрам, оргстекло. С помощью оптических методов диагностики получены пространственно-временные характеристики газоплазменного факела (ГПФ), образованного при воздействии трубчатых релятивистских электронных пучков микросекундной длительности на поверхность твердотельных мишеней. Определены времена образования ГПФ, поперечная и продольная скорости его разлета для различных материалов. Обнаружено образование осевого фокуса ГПФ, который распространяется навстречу пучку. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Плазменная электроника Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets Динаміка газоплазмового факела при впливі сильнострумових РЕП на твердотільні мішені Динамика газоплазменного факела при воздействии сильноточных РЭП на твердотельные мишени Article published earlier |
| spellingShingle | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets Klepikov, V.F. Lytvynenko, V.V. Lonin, Yu.F. Ponomarev, A.G. Tolstolutskiy, O.G. Uvarov, V.V. Uvarov, V.T. Плазменная электроника |
| title | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| title_alt | Динаміка газоплазмового факела при впливі сильнострумових РЕП на твердотільні мішені Динамика газоплазменного факела при воздействии сильноточных РЭП на твердотельные мишени |
| title_full | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| title_fullStr | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| title_full_unstemmed | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| title_short | Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| title_sort | dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets |
| topic | Плазменная электроника |
| topic_facet | Плазменная электроника |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/88314 |
| work_keys_str_mv | AT klepikovvf dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT lytvynenkovv dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT loninyuf dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT ponomarevag dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT tolstolutskiyog dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT uvarovvv dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT uvarovvt dynamicsofthegasplasmatorchformedbythehighcurrentelectronbeamactiononsolidtargets AT klepikovvf dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT lytvynenkovv dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT loninyuf dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT ponomarevag dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT tolstolutskiyog dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT uvarovvv dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT uvarovvt dinamíkagazoplazmovogofakelaprivplivísilʹnostrumovihrepnatverdotílʹnímíšení AT klepikovvf dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT lytvynenkovv dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT loninyuf dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT ponomarevag dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT tolstolutskiyog dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT uvarovvv dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni AT uvarovvt dinamikagazoplazmennogofakelaprivozdeistviisilʹnotočnyhrépnatverdotelʹnyemišeni |