The particularities of the high current relativistic electron beams influence on construction materials targets
Possible approaches to practical application of observed effects at intense relativistic electron beam interaction with solids with particles energy about 0.5 MeV are discusses in the article. Physical actions leading to transformations in irradiated targets are analyzed. The classifications of poss...
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| Опубліковано в: : | Вопросы атомной науки и техники |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2013
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The particularities of the high current relativistic electron beams influence on construction materials targets / А.B. Batracov, M.I. Bazaleev, S.E. Donets, V.F. Klepikov, Yu.F. Lonin, V.V. Lytvynenko, А.G. Ponomarev, V.V. Uvarov, V.T. Uvarov, V.N. Robuk // Вопросы атомной науки и техники. — 2013. — № 6. — С. 225-229. — Бібліогр.: 7 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859667485267066880 |
|---|---|
| author | Batracov, А.B. Bazaleev, M.I. Donets, S.E. Klepikov, V.F. Lonin, Yu.F. Lytvynenko, V.V. Ponomarev, А.G. Uvarov, V.V. Uvarov, V.T. Robuk, V.N. |
| author_facet | Batracov, А.B. Bazaleev, M.I. Donets, S.E. Klepikov, V.F. Lonin, Yu.F. Lytvynenko, V.V. Ponomarev, А.G. Uvarov, V.V. Uvarov, V.T. Robuk, V.N. |
| citation_txt | The particularities of the high current relativistic electron beams influence on construction materials targets / А.B. Batracov, M.I. Bazaleev, S.E. Donets, V.F. Klepikov, Yu.F. Lonin, V.V. Lytvynenko, А.G. Ponomarev, V.V. Uvarov, V.T. Uvarov, V.N. Robuk // Вопросы атомной науки и техники. — 2013. — № 6. — С. 225-229. — Бібліогр.: 7 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | Possible approaches to practical application of observed effects at intense relativistic electron beam interaction with solids with particles energy about 0.5 MeV are discusses in the article. Physical actions leading to transformations in irradiated targets are analyzed. The classifications of possible techniques of target irradiation (such as direct irradiation, exposure to an intermediate target to remote welding, irradiation of the target to condense backscattering evaporation products on the substrate) are presented. The results of modification impacts of various materials are submitted.
Вивчаються вірогідні підходи щодо практичного використання ефектів, які спостерігаються при взаємодії потужнострумового електронного пучка з енергією частинок порядку 0,5 МеВ з твердими тілами. Проаналізовано фізичні механізми, які призводять до перетворень в опромінених мішенях. Наведено класифікацію ймовірних методів технологічного опромінення поверхонь матеріалів: безпосереднього опромінення, впливу на проміжну мішень з метою дистанційного наплавлення матеріалу, опромінення для конденсації зворотньорозсіяних продуктів випаровування на підкладку. Наведено результати досліджень для різних матеріалів.
Рассматриваются возможные подходы к практическому использованию эффектов, наблюдаемых при воздействии сильноточного электронного пучка с энергией частиц порядка 0,5 МэВ на твердые тела. Проанализированы физические механизмы, приводящие к превращениям в облучаемых мишенях. Приведена классификация возможных способов технологического облучения поверхностей материалов: непосредственного облучения, воздействия на промежуточную мишень с целью дистанционной наплавки, облучения мишени с целью конденсации обратнорассеяных продуктов испарения на подложку. Представлены результаты исследований модифицирующих воздействий на различные материалы.
|
| first_indexed | 2025-11-30T12:11:37Z |
| format | Article |
| fulltext |
ISSN 1562-6016. ВАНТ. 2013. №6(88) 225
THE PARTICULARITIES OF THE HIGH CURRENT RELATIVISTIC
ELECTRON BEAMS INFLUENCE ON CONSTRUCTION MATERIALS
TARGETS
А.B. Batracov, M.I. Bazaleev*, S.E. Donets*, V.F. Klepikov*, Yu.F. Lonin, V.V. Lytvynenko*,
А.G. Ponomarev, V.V. Uvarov, V.T. Uvarov, V.N. Robuk**
National Science Center “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine;
*Institute of Electrophysics and Radiation Technologies NAS of Ukraine, Kharkov, Ukraine;
**Joint Institute for Nuclear Research, Dubna, Russia
Possible approaches to practical application of observed effects at intense relativistic electron beam interaction
with solids with particles energy about 0.5 MeV are discusses in the article. Physical actions leading to transfor-
mations in irradiated targets are analyzed. The classifications of possible techniques of target irradiation (such as
direct irradiation, exposure to an intermediate target to remote welding, irradiation of the target to condense
backscattering evaporation products on the substrate) are presented. The results of modification impacts of various
materials are submitted.
PACS: 61.80.Fe, 61.82.Bg, 81.40.Wx
INTRODUCTION
Results of the study of interaction processes of high-
current electron beams (HCEB) with condensed materi-
als finding increasing application in various practical
applications, which can be divided into two groups: the
modifying and test impacts.
The modifying impacts involve the receipt of mate-
rials with desired properties as a result of irradiation by
electron beams (surface remelting, remote welding, ob-
taining of disperse materials). The test impacts perform
the simulation of extreme natural and man-made factors
(meteor strike, lightning, earthquake impact) influences
on materials.
Activisation of researches in this field is validated
by increase of publications which is explained by sever-
al factors:
- increasing requirements to operating conditions of
construction materials, such as in the manufacture of
nuclear radiation converters;
- advent of affordable high-current switches provid-
ing high pulse repetition rate and, therefore, the imple-
mentation of technological modes of accelerators opera-
tion;
- the possibility of a complex reproducing of the
physical mechanisms that are the basis for of advanced
technologies for new materials synthesis.
Known examples of the successful application of
HCEB in various technologies are generally limited to
low-energy beams up to 20…30 keV. An example of
the frequency mode source of irradiation is described
in [1], with beam current of the order of 150 A at energy
of 150 keV.
However despite the quite broad list of applied exam-
ples of observation of the interaction between HCEB and
matter, necessary to dwell on more detailed examination
of technological features of the interaction of high-current
relativistic electron beams (HCREB) with targets. As well
as to investigate the influence of HCREB generated by
accelerators of the NSC KIPT on construction material that
are used in nuclear technologies and to establish possible
areas of technological use of the observed effects.
ANALYSIS OF THE TECHNOLOGICAL
FEATURES OF THE INTERACTION
OF THE HCREB WITH TARGETS
In order to understand the technological prospects
for HCREB in materials science necessary to compare
the physical processes inherent in alternative technolog-
ical approaches with those, that accompany the interac-
tion of intense beams with solid targets.
As an example, consider a list of the basic processes
that underlie the explanation of the effect of solid-phase
metal compounds and technologies for producing com-
posite materials based on it. These processes include:
local heating, dynamic pressure, the activation of the
atoms of the surfaces, the formation of juvenile surfac-
es. And, as a result – obtaining bimetallic compounds
with unique properties.
Closer to the physical principles is electron beam
remelting refining, allows to achieve the granular struc-
ture milling on the surface, removing impurities segre-
gation of alloying elements in the grain boundaries.
It is known that the interaction HCREB with the tar-
get is accompanied by the influence of a number of fac-
tors: radiation, thermal, mechanical, electromagnet-
ic [2, 3]. Features of afield of action formation for each
of these factors, determined by the parameters of the
beam: the energy of the particle, current, current densi-
ty, pulse duration. Obviously that the free path of the
particles in a target, and hence the depth of the modified
layer is determined by the energy of the beam.
The mean free path of the beam determined from the
expression [4]
5
3
116,67 10 ,Ed
ρ
−= ⋅
where E is the energy of the particles, ρ is the density
of the target material.
If the flux density greater than 1010 W·cm2, irradia-
tion leads to a melt of metal surface layer and the emis-
sion of the ablation plasma. Moreover, the interaction of
the beam with the plasma can lead to a change in the
distribution of the absorbed dose in the irradiated object
[5]. In addition to changed physicomechanical proper-
ties of the observed remelted layer the adjacent to it
ISSN 1562-6016. ВАНТ. 2013. №6(88) 226
layer corresponding to the heat affected zone. It should
be noted, that the zone of thermal influence is a qualita-
tive characteristic, which defines the upper limit of the
temperature range of the melting point and lower as the
temperature corresponding to the possible occurrence
thermal transformations (phase transformations, recrys-
tallization annealing, etc.). In this respect, the relativ-
istic beams have the peculiarity that the thickness of the
modified layer may be about 100 microns - value is
sufficient to remote welding technology, hardening of
friction pairs, the manufacture of cutting tools.
High current pulsed electron beam irradiation is
characterized by the fact that in some cases the region of
radiation-induced transformations that consist in the
change of the grain structure, changes in the density and
orientation of dislocations, etc. exceeds the melting
depth of the target and, in some cases, the depth of the
temperature action region, which has been called the
effect of action at a distance [2]. The physical nature of
this effect is explained by the formation of elastic and
shock waves in the target volume.
Shock-wave impacts arising in the target volume af-
ter a single exposure, consists of two components:
1 = ,t jσ σ σ+ (1)
where tσ - component caused by thermoelastic mecha-
nism, jσ - amplitude of the stress caused by reactive
impact due to the ablative ejection of matter.
The value of the stress caused by thermoelastic
mechanism is given by [6]:
( ) ( ), = , ,t r t r tσ εΓ ⋅ (2)
where ( ),r tε - density of the absorbed radiation energy
in the medium, Γ - Gruneisen parameter of matter
= ,
k c
α
ρ
Γ
⋅ ⋅
(3)
where , , ,k cα ρ - coefficient of the thermal expansion,
compressibility, density and specific heat of matter,
respectively.
Assess the magnitude of the mechanical impact
caused by ablation ejection can be made by the pressure
of produced plasma in the energy absorption region of
the electron beam [5]
( 1) ,j eff= − ⋅σ γ ω (4)
where 1.2eff =γ - ratio of the specific heats of solid and
plasma; ω – volumetric energy density of input radia-
tion to the target, J/cm3.
According to the paper [2], the condition of for-
mation of shock waves is the fulfillment of ratio
4
0 ,LC R
I
S
ρ τ
≥ (5)
where I - intensity of the beam, LC - longitudinal veloc-
ity of sound in the target material, ρ - density, 0R - path
of electrons in the target, S - area of the irradiated sur-
face, τ - pulse duration.
THE EXPERIMENTAL TECHNIQUE
Currently, there is a tendency of development of sci-
entific bases of radiation technologies based on HCREB
using the existing accelerator base, created earlier for
special applications. The experiments were carried out
on pulsed electron accelerators NSC KIPT [6] TEMP-A
(2 kA current, electron energy of 0.3 MeV, the pulse
duration is 5 ms) shown on Fig. 1, and TEMP-B (5 kA
current, electron energy of 0.5 MeV, the pulse duration
is 1.5 ms), total energy of the beam ~ 5.3 kJ, shown of
Fig. 2.
3
Fig. 1. Accelerator TEMP-A
Fig. 2. Accelerator TEMP-B
Tubular relativistic electron beam is formed in the
vacuum diode as a result of explosive emission on the
edge of a cylindrical stainless steel cathode feeding it a
large negative potential. To reduce the length of the
cathode stem the driving magnetic field solenoid struc-
turally incorporated within the accelerating column.
Moreover, the magnetic flux lines extending from the
end of the solenoid, closes the high-voltage electrode of
the accelerating column. Such decision has allowed
drastically reduce leakage currents from the cathode
holder, remove the vacuum electron bombardment of
the surface of the accelerating tube and increase the
efficiency of energy transfer from the power source into
a beam. Electron accelerators are magnetically insulated
diodes with "reversed" magnetic field.
In order to increase the density of the energy re-
leased at the surface, was formed a tubular beam with a
diameter of 60…70 mm and wall thickness of the beam
ISSN 1562-6016. ВАНТ. 2013. №6(88) 227
– 2 mm. Energy density released at the surface of the
irradiated target was ~ 1 kJ/cm2. The intensity of irra-
diation was about 109 W/cm2. Targets of tungsten, tanta-
lum, copper, aluminum and molybdenum were irradiat-
ed.
Fractographic studies were performed using scan-
ning electron microscope JEOL JSM-840 and SEM-10,
metallurgical studies were performed using a micro-
scope MIM-10.Fracture of the first part of samples was
carried out in liquid nitrogen, the second part of samples
subjected to fracture at room temperature. The testing
on the cavitation resistance is mounted on the basis of
the ultrasonic generator UZDN-22T, the frequency of
20 kHz, power of 400 W.
TECHNOLOGICAL APPROACHES
TO THE USE OF HCREB
As noted above, HCREB can be used for modifying
and testing impacts. At the same time modifying im-
pacts may involve the direct irradiation of material sur-
faces, impacts to an intermediate target to remote weld-
ing, irradiation of the target to condense backscattered
evaporation products onto the substrate.
In this regard, it was carried out irradiation of mate-
rials that can be used in nuclear power plants in the
conditions of high-intensity radiation and temperature
impacts. Molybdenum targets thickness of 0.3 mm have
been irradiated at the accelerator TEMP-B.
Fig. 3. The target of molybdenum irradiated and
HCREB - general view of the target;
fractogramm of destruction area
As seen from Fig. 3, the irradiation with such values
of intensity targets is destroyed, simultaneously from
fraсtogramm it should be noted that irradiation remelted
layer has a continuous structure, whereas the source has
a characteristic of molybdenum layered structure.
Caused by irradiation mechanical effects have resulted
to the bundle of the target. At the same time, for exam-
ple, when solving the problem of remote welding possi-
ble to have data on the recommended thickness of the
applied foil.
Welding is one of the ways of modifying the surface
properties of metal products, used as a cutting tool oper-
ating in conditions of cavitation wear undergoing shock
loads and others [1]. Usage for material welding pulsed
high-current relativistic electron beams enables to reach
a number of positive effects in perspective. This is due
to the fact that when electrons beam to the elements
pulsed is a sequence of processes: melting of the coating
material, the messages melt pulse movement in the di-
rection of the substrate and the activation of the elec-
tronic and ionic systems at high pressures and high tem-
peratures. Specified method combines the elements of
the process of electron beam welding, explosion weld-
ing, plasma and induction welding.
Considering the nature of the pulse impacts such
traditionally problematic stages of welding as a prefer-
ential evaporation of the fusible elements that causes the
occurrence of slag inclusions in the transition region
coating-substrate cracking, discontinuities, and others
require a separate study.
Ongoing studies of aluminum welding on tungsten
substrate are of practical interest for the production in
the surface region of the alloy of tungsten and alumi-
num, characterized by high-temperature strength and
oxidation resistance. Due to significantly different val-
ues of the melting temperature of both materials, the
mechanism of contact consisted in the diffusion penetra-
tion of molten aluminum into the surface region of
tungsten. Upon placement in cavitation field coating
was easily removed from the surface, and low-
temperature fracture coating material shows peeling
from the substrate, as can be seen in Fig. 4.
Fig. 4. Fracture surface of the tungsten weld
aluminum layer
However, a more detailed examination reveals that
the aluminum coating has a uniform fine-grained struc-
ture. Fusing is possible to be achieved if duplex treat-
ment consisting in repeated irradiation coating deposited
on the surface [5].
Sufficiently good quality of adhesion been observed
in surfacing of tantalum on Steel 45. These coatings
were investigated in more detail. Inflicted coating char-
acterized by islet nature of contact with the substrate,
and the presence of slag inclusions caused by higher
volatility fusible element by beam evaporation and their
deposition of on the product. In order to determine the
specific values of the effective grasping area with a sub-
strate, the applied coating were tested in cavitation. This
kind of impact was selected as test by the fact that it
provides preferential removal of slag, as well as those
fragments of coatings that at condensing had not suffi-
cient energy to create an adhesive bond. As already not-
ed, this welding method has common features with oth-
er electron beams and others methods of welding, but as
for quantitative estimation is appropriate to address to
the geometrical criteria that characterize the stage of the
process. Described in [1] on page 366 form factor in this
case is
,o
ï
S
h
χ = (6)
ISSN 1562-6016. ВАНТ. 2013. №6(88) 228
where oS - area of solid (non-removable during the cavi-
tation process) contact coating to the substrate, пh - pen-
etration depth into the substrate. These values were de-
termined by comparing the initial weld surfaces
(Fig. 5,a) to the surfaces after cavitation treatment
(Fig. 5,b). Since the surface of the coating contains a
condensed product, volatile elements with low atomic
weight, contained as an impurity, and the natural unre-
paired pollution for their removal product was exposed
of cavitation processing. Surface after cavitation treat-
ment shown in Fig. 5,b.
a b
Fig. 5. Steel 45 with the surface of the weld layer of
tantalum: a) – original; b) - after cavitation processed
Images of the same surface, subjected to bending,
obtained by a scanning electron microscope at different
magnification, shown in Fig. 6. As can be seen in the
coating is present drip component and surface fracture
occurs on the line of separation regions that have adhe-
sion to the substrate.
Fig. 6. The surface of the Steel 45 weld with a layer
of tantalum
The depth of penetration was determined by manu-
facturing microsections perpendicular inflicted layer
and measuring the penetration depth in the material.
Also introduced such as the estimated value of the
coefficient of the effective area of contact:
0 ,
S
S
γ = (7)
where S - total area of the source of the coating. By the
results of the observations, it was found that the opti-
mum thickness of the foil, which provides preferential
melting of substrate side.
This mode of melting provides the maximum accel-
eration of the melt particles and hence possibility of
sufficiently complete coverage. As another obvious
criterion that allows you to perform optimization of
surfacing technology using the high-current relativistic
electron beams is the utilization factor of the material
,f
s
d
d
α = (8)
defined as the ratio of the thickness fd of the evapo-
rated layers of foil to the thickness sd of the coating.
This parameter allows evaluating the use efficiency of
the coating material, correctness of the choice of foil
thickness, the distance from the foil to the substrate.
It should be noted that in the case of thin foils hav-
ing a thickness comparable to the mean free path of
electrons nature of material evaporation significantly
depends on the spatial distribution of the absorbed dose.
Is obvious that for a more efficient ejection of molten
coating material and to achieve its maximum pulse is
preferred to melt started on the side facing the target.
Therefore, metallurgical studies of tantalum foil ir-
radiated by high-current pulsed electron beam have
been carried out. In particular, the low-temperature frac-
ture was examined of the foil thinned due to exposure to
the of initial thickness 50 microns to 30 microns in or-
der to establish the zone of maximum energy release on
structural changes along the path of the electrons
(Fig. 7). As can be seen, after irradiation structure be-
comes more uniform, and although in both cases the
fracture occurs by a viscous mechanism to the original
sample a large fragility, is inherent which resulted in
fracture to appearance of pit fracture fragments having a
long shape.
a b
Fig. 7. The fracture in the tantalum foil: irradiated
sample (a); non-irradiated sample (b)
Tantalum foil placed at different distances from the
substrate d . The results of these studies are summa-
rized in Table.
The dependence of the characteristics
of the tantalum welded layer on the substrate
of Steel 45 of the distance (foil-substrate)
d , mm α γ χ, mm
5 0.9 0.7 7
10 0.85 0.8 9
15 0.6 0.5 11
As can be seen from the table, better value for the
most important specifications - coefficient effective
contact area is achieved when the distance from the foil
to the substrate of 10 mm.
The next direction of technological use of HCREB is
irradiation and subsequent condensation products
formed by the target ablation. At the accelerator
TEMP -A copper target was irradiated using the near
target equipment, allowing condensation to position the
substrate ablation products (Fig. 8).
ISSN 1562-6016. ВАНТ. 2013. №6(88) 229
Fig. 8. Products of copper condensation
CONCLUSIONS
The direction of the possible use of high-current ac-
celerators for material applications is determined. Irra-
diation of metals and alloys by high-current relativistic
electron beams with energies of particle 0.3…0.8 MeV
can reproduce the set of effects: obtaining the fine-
grained structure as a result of remelting of the surface,
generation of the shock waves causing creation of sof-
tening layers deep inside the target as well as the de-
struction of the target. This opens up new prospects for
the development of radiation technologies:
- aimed achievement of the gradient operational
characteristics in the volume of solid irradiated target;
- testing of the operating characteristics stability of
the nuclear installations materials by modeling the radi-
ation, temperature and shock-wave influences;
- remote welding of protective coatings and coating
by condensation of backscattered ablation products on
the surface of construction materials.
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Article received 02.10.2013
ОСОБЕННОСТИ ВОЗДЕЙСТВИЯ СИЛЬНОТОЧНЫХ РЕЛЯТИВИСТСКИХ ЭЛЕКТРОННЫХ
ПУЧКОВ НА МИШЕНИ ИЗ КОНСТРУКЦИОННЫХ МАТЕРИАЛОВ
А.Б. Батраков, Н.И. Базалеев, С.Е. Донец, В.Ф. Клепиков, Ю.Ф. Лонин, В.В. Литвиненко,
А.Г. Пономарёв, В.В. Уваров, В.Т. Уваров, В.Н. Робук
Рассматриваются возможные подходы к практическому использованию эффектов, наблюдаемых при
воздействии сильноточного электронного пучка с энергией частиц порядка 0,5 МэВ на твердые тела. Про-
анализированы физические механизмы, приводящие к превращениям в облучаемых мишенях. Приведена
классификация возможных способов технологического облучения поверхностей материалов: непосред-
ственного облучения, воздействия на промежуточную мишень с целью дистанционной наплавки, облучения
мишени с целью конденсации обратнорассеяных продуктов испарения на подложку. Представлены резуль-
таты исследований модифицирующих воздействий на различные материалы.
ОСОБЛИВОСТІ ВПЛИВУ ПОТУЖНОСТРУМОВИХ РЕЛЯТИВІСТСЬКИХ ЕЛЕКТРОННИХ
ПУЧКІВ НА МІШЕНІ З КОНСТРУКЦІЙНИХ МАТЕРІАЛІВ
А.Б. Батраков, М.І. Базалеєв, С.Є. Донець, В.Ф. Клепіков,
Ю.Ф. Лонін, В.В. Литвиненко, А.Г. Пономарьов, В.В. Уваров, В.Т. Уваров, В.М. Робук
Вивчаються вірогідні підходи щодо практичного використання ефектів, які спостерігаються при взаємо-
дії потужнострумового електронного пучка з енергією частинок порядку 0,5 МеВ з твердими тілами. Про-
аналізовано фізичні механізми, які призводять до перетворень в опромінених мішенях. Наведено класифіка-
цію ймовірних методів технологічного опромінення поверхонь матеріалів: безпосереднього опромінення,
впливу на проміжну мішень з метою дистанційного наплавлення матеріалу, опромінення для конденсації
зворотньорозсіяних продуктів випаровування на підкладку. Наведено результати досліджень для різних ма-
теріалів.
Introduction
Analysis of the technological features of the interaction of the HCREB with targets
The experimental technique
Technological approaches to the use of HCREB
Conclusions
References
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| id | nasplib_isofts_kiev_ua-123456789-112081 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-11-30T12:11:37Z |
| publishDate | 2013 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Batracov, А.B. Bazaleev, M.I. Donets, S.E. Klepikov, V.F. Lonin, Yu.F. Lytvynenko, V.V. Ponomarev, А.G. Uvarov, V.V. Uvarov, V.T. Robuk, V.N. 2017-01-17T14:38:18Z 2017-01-17T14:38:18Z 2013 The particularities of the high current relativistic electron beams influence on construction materials targets / А.B. Batracov, M.I. Bazaleev, S.E. Donets, V.F. Klepikov, Yu.F. Lonin, V.V. Lytvynenko, А.G. Ponomarev, V.V. Uvarov, V.T. Uvarov, V.N. Robuk // Вопросы атомной науки и техники. — 2013. — № 6. — С. 225-229. — Бібліогр.: 7 назв. — англ. 1562-6016 PACS: 61.80.Fe, 61.82.Bg, 81.40.Wx https://nasplib.isofts.kiev.ua/handle/123456789/112081 Possible approaches to practical application of observed effects at intense relativistic electron beam interaction with solids with particles energy about 0.5 MeV are discusses in the article. Physical actions leading to transformations in irradiated targets are analyzed. The classifications of possible techniques of target irradiation (such as direct irradiation, exposure to an intermediate target to remote welding, irradiation of the target to condense backscattering evaporation products on the substrate) are presented. The results of modification impacts of various materials are submitted. Вивчаються вірогідні підходи щодо практичного використання ефектів, які спостерігаються при взаємодії потужнострумового електронного пучка з енергією частинок порядку 0,5 МеВ з твердими тілами. Проаналізовано фізичні механізми, які призводять до перетворень в опромінених мішенях. Наведено класифікацію ймовірних методів технологічного опромінення поверхонь матеріалів: безпосереднього опромінення, впливу на проміжну мішень з метою дистанційного наплавлення матеріалу, опромінення для конденсації зворотньорозсіяних продуктів випаровування на підкладку. Наведено результати досліджень для різних матеріалів. Рассматриваются возможные подходы к практическому использованию эффектов, наблюдаемых при воздействии сильноточного электронного пучка с энергией частиц порядка 0,5 МэВ на твердые тела. Проанализированы физические механизмы, приводящие к превращениям в облучаемых мишенях. Приведена классификация возможных способов технологического облучения поверхностей материалов: непосредственного облучения, воздействия на промежуточную мишень с целью дистанционной наплавки, облучения мишени с целью конденсации обратнорассеяных продуктов испарения на подложку. Представлены результаты исследований модифицирующих воздействий на различные материалы. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Применение ускоренных пучков. Детекторы и детектирование ядерных излучений The particularities of the high current relativistic electron beams influence on construction materials targets Особливості впливу потужнострумових релятивістських електронних пучків на мішені з конструкційних матеріалів Особенности воздействия сильноточных релятивистских электронных пучков на мишени из конструкционных материалов Article published earlier |
| spellingShingle | The particularities of the high current relativistic electron beams influence on construction materials targets Batracov, А.B. Bazaleev, M.I. Donets, S.E. Klepikov, V.F. Lonin, Yu.F. Lytvynenko, V.V. Ponomarev, А.G. Uvarov, V.V. Uvarov, V.T. Robuk, V.N. Применение ускоренных пучков. Детекторы и детектирование ядерных излучений |
| title | The particularities of the high current relativistic electron beams influence on construction materials targets |
| title_alt | Особливості впливу потужнострумових релятивістських електронних пучків на мішені з конструкційних матеріалів Особенности воздействия сильноточных релятивистских электронных пучков на мишени из конструкционных материалов |
| title_full | The particularities of the high current relativistic electron beams influence on construction materials targets |
| title_fullStr | The particularities of the high current relativistic electron beams influence on construction materials targets |
| title_full_unstemmed | The particularities of the high current relativistic electron beams influence on construction materials targets |
| title_short | The particularities of the high current relativistic electron beams influence on construction materials targets |
| title_sort | particularities of the high current relativistic electron beams influence on construction materials targets |
| topic | Применение ускоренных пучков. Детекторы и детектирование ядерных излучений |
| topic_facet | Применение ускоренных пучков. Детекторы и детектирование ядерных излучений |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/112081 |
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