Перегляд за темою "Interaction of relativistic particles with crystals and matter"

Результати 1-20 з 21

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Changes of the radiation characteristics of surface of tungsten as a result of influence of helium ion beams

Manuilenko, O.V.; Prokhorenko, E.M.; Pavlii, K.V.; Zajtsev, B.V.; Dubniuk, S.N.; Lytvynenko, V.V.; Prokhorenko, T.G. (Вопросы атомной науки и техники, 2022)

The change in the radiation characteristics of the surface of tungsten was studied. Helium ions beams with energies of 0.12 and 4 MeV were used. Curves of ionization and damage are got on length of free run of ions of ...
Composite scintillators based on organic grains and their pulse shape discrimination capability

Khromiuk, I.F.; Karavaeva, N.L.; Krech, А.V.; Lazarev, І.V.; Martynenko, Ye.V.; Tarasenko, О.А.; Khabuseva, S.U. (Problems of Atomic Science and Technology, 2022)

Studies of photoluminescence, relative light output and optical transmission of organic single-layer composite scintillators with different grain sizes have been carried out. The paper presents the dependences of these ...
Development of radiation resistant scintillators based on rare-earth aluminates

Krech, A.V.; Kofanov, D.O.; Khromiuk, I.F.; Okrushko, O.M.; Karavaeva, N.L.; Khabuseva, S.U. (Problems of Atomic Science and Technology, 2022)

LuYAG∶Ce and YAG∶Ce,Ca crystals were obtained by the Czochralski method using tungsten crucibles in reducing surroundings. Crystals (LuₓY₁₋ₓ)₃Al₅O₁₂∶1%Ce and crystals of YAG:Ce,Ca with different concentrations of Ce and ...
Effect of electron irradiation conditions on the efficiency of defect formation in MgAl₂O₄ spinel

Kazarinov, Yu.H.; Pop, O.M.; Megela, I.G.; Popov, A.I. (Problems of Atomic Science and Technology, 2022)

The efficiency of defect formation in spinel ceramics of magnesium aluminate (MgAl₂O₄) under electron irradiation has been determined. A strong effect of cooling on the concentration of residual defects was revealed. When ...
Facility and researches results of the frictional characteristics of metal – irradiated - ceramics pair

Butenko, V.I.; Dubniuk, S.N.; Dyachenko, A.F.; Manuilenko, O.V.; Pavlii, K.V.; Zajtsev, B.V. (Вопросы атомной науки и техники, 2022)

The technique and facility for studying of frictional characteristics of metal – ceramics pair are presented. Parameters of samples irradiation on the helium ions linear accelerator with 0.12 and 4 MeV energies are resulted. ...
IAP triple-beam facility for simulation studies of radiation damage of materials

Baturin, V.A.; Yeryomin, S.A.; Litvinov, P.A.; Pustovoitov, S.A.; Roenko, O.Yu.; Storizhko, V.E. (Вопросы атомной науки и техники, 2022)

The project of ion irradiation facility for in-situ studies of radiation damage being developed in IAP NAS of Ukraine is presented. The platform comprises 300 kV heavy ion implanter, 50 kV collinear dual-beam light ion ...
Influence of radiation conditions on cracking of composite scintillators

Krech, A.V.; Boyarintsev, A.Yu.; Galunov, N.Z.; Karavaeva, N.L.; Gorbacheva, T.E.; Khromiuk, I.F.; Levchuk, L.G.; Popov, V.F. (Вопросы атомной науки и техники, 2021)

The article analyzes two main hypotheses describing the cracking of a composite scintillator in the irradiation zone. This is the "temperature" and "radiation-chemical" hypothesis of cracking. The analysis is based on ...
Modeling and experimental research of the processes of formation of radiation damage in the interaction of gamma quantum flows and relativistic electron beams with solutions of organic dyes

Gokov, S.P.; Kazarinov, Yu.G.; Kalenik, S.A.; Kasilov, V.Y.; Kantemirov, V.V.; Mazilov, O.O.; Malykhina, T.V.; Tsiats’ko, V.V.; Tsiats’ko, E.V. (Вопросы атомной науки и техники, 2021)

The processes of interaction of an aqueous solution of an organic dye: methylene blue (MB) - C¹⁶H¹⁸N³SCl with gamma quanta and electrons were investigated. A model has been developed and the passage of electrons with an ...
On coherent and incoherent scattering of fast charged particles in ultrathin crystals

Shulga, N.F.; Koriukina, V.D. (Вопросы атомной науки и техники, 2020)

We consider the fast charged particles scattering in ultrathin crystals on the base of the Born approximation of quantum electrodynamics. The main attention is paid to the question of the scattering cross section splitting ...
Peculiarities of channeling and generated radiation of relativistic electrons in the main charged axes of lithium hydride crystal

Maksyuta, N.V.; Vysotskii, V.I.; Efimenko, S.V.; Slinchenko, Yu.A. (Вопросы атомной науки и техники, 2021)

The paper deals with the calculation of electron interaction potentials with the main charged [110] axes in a lithium hydride crystal at T = 300, 600, and 900 K temperatures. For relativistic electrons with Lorentz factors ...
Possible reasons for cracking of composite scintillators after irradiation in an electron accelerator at a high dose rate

Krech, A.V.; Boyarintsev, A.Yu.; Gerasymov, Ia.V.; Gorbacheva, T.E.; Karavaeva, N.L.; Levchuk, L.G.; Popov, V.F. (Problems of Atomic Science and Technology, 2022)

Possible reasons for cracking of composite scintillators after irradiation in an electron accelerator at a high dose rate are proposed. The main causes of cracking of composite scintillators, such as ionizing radiation and ...
Radiation damage in tungsten target of the "KIPT Neutron Source"

Gann, V.V.; Gann, A.V.; Borts, B.V.; Karnaukhov, I.M.; Gladkikh, P.I.; Parkhomenko, A.A. (Вопросы атомной науки и техники, 2021)

In this work, mathematical modeling of a complex of processes occurring in a tungsten target under irradiation with high-energy electrons with an energy of 100 MeV: an electromagnetic shower, the production of photo-neutrons, ...
Radiation induced softening of crystals

Dubinko, V.I.; Borysenko, V.N.; Kushnir, V.A.; Khodak, I.V.; Mytrochenko, V.V.; Gamov, V.O. (Вопросы атомной науки и техники, 2021)

Under irradiation of crystals, atomic vibrations of the lattice that are large enough in amplitude so that the linear approximation and therefore the conventional phonon description of the lattice is not enough. At the ...
Radiation stimulation of the catalytic activity of zirconium dioxide nanoparticles during the conversion of hydrocarbons

Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V. (Вопросы атомной науки и техники, 2021)

The comparison of the catalytic activity of the initial and activated by bremsstrahlung γ-radiation on a high-current electron accelerator of zirconium dioxide nanoparticles on the nature of the conversion of ethanol. The ...
Secondary electron emission from thin aluminum foils produced by high-energy electron beams

Karpus, S.H.; Kovalenko, G.D.; Kazarinov, Yu.H.; Dubina, V.M.; Kasilov, V.Y.; Kochetov, S.S.; Shopen, O.O.; Shliakhov, I.N. (Вопросы атомной науки и техники, 2021)

The description of the experimental equipment and technique for measuring the secondary emission of electrons (SEE) with application of accelerated electrons at the linear accelerator of the IHEPNP NSC KIPT with energies ...
Spectra of low-energy secondary electrons in the interaction of relativistic electrons with aluminum foil

Vit’ko, V.; Kovalenko, G.; Karpus, S.; Semisalov, I.; Shopen, O. (Problems of Atomic Science and Technology, 2022)

The integral yields of secondary low-energy electrons (with energies up to 50 eV) in the interaction of primary electrons 10…30 MeV with 50 μm aluminum foil have been studied. It is shown that the proposed method for ...
Stochastic mechanism of broadening spectral density of synchrotron radiation of relativistic electron

Mazmanishvili, A.S. (Вопросы атомной науки и техники, 2021)

The consideration is based on the study of the spectral profile of the synchrotron radiation (SR) line of a relativistic electron orbiting in a circular orbit in the uniform magnetic field. Fast stochastic fluctuations ...
Thermal annealing effects on microstructure and mechanical properties of the Ta-W-Ta solid phase joints for neutron producing targets of the research nuclear facility “Source of Neutrons”

Lopata, A.A.; Domnich, M.P.; Borts, B.V.; Zelinsky, A.Yu.; Parkhomenko, A.A.; Sytin, V.I.; Tkachenko, V.I.; Vorobyov, I.A.; Pidlisnyi, A.D.; Patochkin, I.V.; Gluschenko, L.I. (Вопросы атомной науки и техники, 2022)

The paper considers the neutron-producing tantalum-tungsten-tantalum target using a niobium interlayer manu-facturing variant by means of vacuum hot roll bonding for the research nuclear facility “Source of Neutrons”. The ...
Two-parametric beam model for dosimetry of the process of electron irradiation of materials with low density and atomic number

Lazurik, V.T.; Lazurik, V.M.; Popov, G.; Zimek, Z. (Вопросы атомной науки и техники, 2021)

The work is devoted to studying the possibility of using a two-parametric model of an electron beam to describe the depth distributions of the electron dose in materials with a low density and an effective atomic number. ...
Universal experimental facility of IHEPNP NSC KIPT for research of high-energy electron beam interaction with thin amorphous and single-crystal structures

Kovalenko, G.D.; Kasilov, V.Y.; Kazarinov, Yu.H.; Karpus, S.H.; Semisalov, I.L.; Kochetov, S.S.; Shopen, O.O.; Shliakhov, I.M. (Вопросы атомной науки и техники, 2022)

The description and bench test results of the developed universal experimental facility [1] are presented. It mounted at the direct beam line of IHEPNP NSC KIPT 30 MeV Linac for the fundamental and applied research of high ...

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Перегляд за темою "Interaction of relativistic particles with crystals and matter"

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