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Articles 1 - 30 of 35
Full-Text Articles in Physical Sciences and Mathematics
Neutron Pick-Up Reactions In 18o (10 Mev/Nucleon) + Ta, S. Lukyanov, T. Issatayev, B. M. Hue, V. Maslov, K. Mendibayev, S. S. Stukalov, D. Aznabayev, A. Shakhov, K. A. Kuterbekov, A. M. Kabyshev
Neutron Pick-Up Reactions In 18o (10 Mev/Nucleon) + Ta, S. Lukyanov, T. Issatayev, B. M. Hue, V. Maslov, K. Mendibayev, S. S. Stukalov, D. Aznabayev, A. Shakhov, K. A. Kuterbekov, A. M. Kabyshev
Eurasian Journal of Physics and Functional Materials
The availability of new radioactive ion beams has broadened the study of nuclear reactions and nuclear structure. The main mechanism to produce the secondary beams is the fragmentation of the projectile. An alternative method for the production of the exotic nuclei is the multinucleon transfer. We measured production cross section for the B, C, N and O isotopes in the reaction18O + Ta and the beam energy at 10 MeV/nucleon. The cross sections were obtained by integrating the momentum distributions of the isotopes. It was shown that in deep inelastic processes the production yields of different isotopes could …
Determination Of The Response Function Of The Nai Detector For Γ-Quanta With An Energy Of 4.43 Mev, Formed During Inelastic Scattering Of Neutrons With An Energy Of 14.1 Mev On Carbon Nuclei, S. B. Dabylova, Yu. N. Kopach, S. K. Sakhiyev, D. N. Grozdanov, N. A. Fedorov
Determination Of The Response Function Of The Nai Detector For Γ-Quanta With An Energy Of 4.43 Mev, Formed During Inelastic Scattering Of Neutrons With An Energy Of 14.1 Mev On Carbon Nuclei, S. B. Dabylova, Yu. N. Kopach, S. K. Sakhiyev, D. N. Grozdanov, N. A. Fedorov
Eurasian Journal of Physics and Functional Materials
The work is devoted to determining the response function of the detector NaI(Tl) for γ-quanta with energy of 4.43 MeV, formed during inelastic scattering of neutrons with energy of 14.1 MeV on the nuclei 12 C. In gamma spectrometry, output pulses are recorded, the amplitudes of which are proportional to the energy lost in the detection medium by incident photons. One of the main tasks of radiation detection is to restore radiation characteristics from signals measured at the outputs of detectors. For this, it is necessary to know, first of all, the general characteristics of detectors as converters of radiation …
Influence Of Electrolytic-Plasma Hardening Modes On Structure And Hardness Of 0.34cr-1ni-Mo-Fe Steel, B. K. Rakhadilov, Z. A. Satbayeva, R. S. Kozhanova, D. R. Baizhan, M. K. Rakhadilov, G. B. Botabayeva
Influence Of Electrolytic-Plasma Hardening Modes On Structure And Hardness Of 0.34cr-1ni-Mo-Fe Steel, B. K. Rakhadilov, Z. A. Satbayeva, R. S. Kozhanova, D. R. Baizhan, M. K. Rakhadilov, G. B. Botabayeva
Eurasian Journal of Physics and Functional Materials
The article presents the results of studying the process of electrolytic-plasma hardening of 0.34Cr-1NiMo- Fe steel by surface hardening, as well as the results of the current-voltage characteristics of the cathodic electrolytic-plasma process depending on the composition of the electrolyte. Temperature-time and special modes of electrolytic-plasma hardening of steel 0.34Cr-1Ni-Mo-Fe were determined. The optimal composition of the electrolyte for electrolytic-plasma hardening has been determined, providing a relatively high heating rate and high hardness of the steel surface. It has been determined that after the electrolytic-plasma hardening, the microhardness of 34KhN1M steel increases 2.9 times due to the formation of fine …
Study Of The Influence Of The Phase Composition And Crystal Structure Of Fexni100-X Nanostructures On The Efficiency Of Using Lithium Ion Batteries As Anode Materials, D. B. Borgekov, N. A. Hlebnikov, D. I. Shlimas, A. L. Kozlovskiy
Study Of The Influence Of The Phase Composition And Crystal Structure Of Fexni100-X Nanostructures On The Efficiency Of Using Lithium Ion Batteries As Anode Materials, D. B. Borgekov, N. A. Hlebnikov, D. I. Shlimas, A. L. Kozlovskiy
Eurasian Journal of Physics and Functional Materials
The results of the efficiency of using Fe x Ni 100��x nanotubes as anode materials for lithium-ion batteries have been obtained. In the course of research, it was found that an increase in the concentration of nickel in the structure to 40 and 60 at.% leads to a sharp increase in the resource number of cycles by more than two times in comparison with iron nanotubes. Such a difference in the resource lifetime is due to the higher stability of Fe x Ni 100��x nanotubes with a nickel concentration of more than 40 at.% to destruction, as well as resistance …
Determination Of Radon Levels In Dwellings And Social Objects And Evaluation Annual Effective Dose From Inhalation Of Radon In Stepnogorsk Area Northern Kazakhstan, D. S. Ibrayeva, M. N. Aumalikova, K. B. Ilbekova, M. M. Bakhtin, P. K. Kazymbet
Determination Of Radon Levels In Dwellings And Social Objects And Evaluation Annual Effective Dose From Inhalation Of Radon In Stepnogorsk Area Northern Kazakhstan, D. S. Ibrayeva, M. N. Aumalikova, K. B. Ilbekova, M. M. Bakhtin, P. K. Kazymbet
Eurasian Journal of Physics and Functional Materials
Radon is a noble gas that is one of the natural radioactive decay products of radium resulting from the disintegration of uranium. Humans are exposed to sources of natural radiation activity, being radon and its progeny breathing air responsible for more than 50% of the annual dose received from natural radiation. The aim of this study was to determine the radon concentration in the air in settlements’ dwellings and social objects and calculate the annual effective dose of population from radon on the territory mining activities in Stepnogorsk area. The study has shown that activity concentrations of indoor radon in …
Assessment Of The Dose Burden And Health Status Of The Uranium Processing Workers Of The Republic Of Kazakhstan, M. N. Aumalikova, D. S. Ibrayeva, K. Ilbekova, P. K. Kazymbet, M. M. Bakhtin, D. D. Janabaev, N. Z. Altaeva
Assessment Of The Dose Burden And Health Status Of The Uranium Processing Workers Of The Republic Of Kazakhstan, M. N. Aumalikova, D. S. Ibrayeva, K. Ilbekova, P. K. Kazymbet, M. M. Bakhtin, D. D. Janabaev, N. Z. Altaeva
Eurasian Journal of Physics and Functional Materials
The main objective of current study is to assess the dose burden and health status of workers at the uranium processing hydrometallurgical plant in order to develop measures aimed at reducing their incidence. This article presents the results of radiation monitoring and data on the health status of workers at the hydrometallurgical plant of the Stepnogorsk Mining and Chemical Combine (SMCC). The data of the accumulated effective dose for the entire length of service, as well as data on the incidence rate for the period 2013-2019, obtained from the base of the Industrial Radiation and Epidemiological Register, have been analyzed. …
Changes In The Structure And Properties Of Zro2 Detonation Coatings During Annealing, B. K. Rakhadilov, D. N. Kakimzhanov, G. Botabaeva, D. B. Buitkenov, N. Kantai, L. B. Bayatanova
Changes In The Structure And Properties Of Zro2 Detonation Coatings During Annealing, B. K. Rakhadilov, D. N. Kakimzhanov, G. Botabaeva, D. B. Buitkenov, N. Kantai, L. B. Bayatanova
Eurasian Journal of Physics and Functional Materials
The article studied the effect of annealing on the structure and properties of zirconium dioxide coatings obtained by detonation spraying. Detonation spraying was realized on a computerized detonation spray ing complex of the new generation CCDS2000. Determined that coatings made of zirconium dioxide are characterized by high adhesive strength of adherence to the substrate. Thermal annealing of coated samples was performed at temperatures of 900-1200◦C. It was determined that the microhardness of zir conium dioxide coatings increases by 10-25% depending on the annealing temperature after annealing. The results of nanoindentation showed that the nanohardness of the coatings after …
Investigation Of The Applicability Of Post-Irradiation Annealing To Reduce The Degree Of Disorder In Aln Ceramic To Proton Irradiation, A. L. Kozlovskiy
Investigation Of The Applicability Of Post-Irradiation Annealing To Reduce The Degree Of Disorder In Aln Ceramic To Proton Irradiation, A. L. Kozlovskiy
Eurasian Journal of Physics and Functional Materials
The work presents study results of the applicability of high-temperature heat treatment (500-700°C) of nitride ceramics irradiated with protons with an energy of 1.5 MeV and a dose of 10 16 cm ��2 . It was found that heat treatment for 60 minutes at a temperature of 700°C allows us to significantly reduce the density of radiation-induced defects and distortions in ceramics structure due to partial annihilation and relaxation of point defects. Dependences of changes in the strength and mechanical characteristics of ceramics on the temperature of post-irradiation annealing are shown. Based on the data obtained, a conclusion was made …
Ome Aspects Related To The Transformation Of The Three Body Wave Function Built On The Gaussian Basis, B. A. Urazbekov, A. S. Denikin, N. Itaco, N. T. Tursunbayev
Ome Aspects Related To The Transformation Of The Three Body Wave Function Built On The Gaussian Basis, B. A. Urazbekov, A. S. Denikin, N. Itaco, N. T. Tursunbayev
Eurasian Journal of Physics and Functional Materials
The three-body wave function built on the basis of the Gaussian function, calculated using the three-body Hamiltonian with the Pauli blocking operator is studied. As an example, the wave function of the ground state of the 9 Be was taken. Analytical expressions are presented for the overlap matrix elements of the basis function for both basic and alternative set of relative Jacobi coordinates. The correlation densities of the wave function are calculated and illustrated depending on the set of orbital quantum numbers.
Study Of The Strength Characteristics And Radiation Resistance Of Thin-Film Coatings Based On Cux (X=Bi, Mg, Ni), D. I. Shlimas, A. L. Kozlovskiy, M. E. Kaliekperov, K. K. Kadyrzhanov, V. V. Uglov
Study Of The Strength Characteristics And Radiation Resistance Of Thin-Film Coatings Based On Cux (X=Bi, Mg, Ni), D. I. Shlimas, A. L. Kozlovskiy, M. E. Kaliekperov, K. K. Kadyrzhanov, V. V. Uglov
Eurasian Journal of Physics and Functional Materials
The paper presents the results of changes in the strength characteristics of thin film coatings based on compounds of copper-bismuth, copper-magnesium, copper-nickel. The dependences of the influence of the phase composition on the strength characteristics, such as the coefficient of friction, bending strength and impact coefficient, are established. The effect of irradiation with helium ions with a high radiation dose of 1015-1017 ion/cm2 on the strength characteristics is evaluated. It is shown that an increase in the radiation dose leads to a decrease in strength properties due to the appearance of a large concentration of defects …
Photoelectric Properties Of Tio2-Go+Ag Ternary Nanocomposite Material, N. Kh. Ibrayev, A. Zh. Zhumabekov, E. V. Seliverstova
Photoelectric Properties Of Tio2-Go+Ag Ternary Nanocomposite Material, N. Kh. Ibrayev, A. Zh. Zhumabekov, E. V. Seliverstova
Eurasian Journal of Physics and Functional Materials
A ternary nanocomposite material based on TiO 2 , graphene oxide and core-shell nanostructures of Ag/TiO2 composition was obtained by a two-step hydrothermal method. The formation of a dual TiO2-GO nanocomposite was confirmed by Raman spectroscopy data, where the nanocomposite spec- tra contain peaks characteristic of both TiO 2 and graphene oxide. Studies of electrophysical character- istics have shown that the addition of plasmon nanoparticles leads to an improvement in the charge-transfer characteristics of the synthesized material. This is due to the fact that the charge transfer resistance of a ternary nanocomposite material TiO2-GO-Ag is …
Nuclei Near The Boundary Of Neutron Stability, Yu. E. Penionzhkevich
Nuclei Near The Boundary Of Neutron Stability, Yu. E. Penionzhkevich
Eurasian Journal of Physics and Functional Materials
This article is devoted to the description of the properties of the lightest nuclei with a large excess of neutrons. Light nuclei have always attracted attention due to the wide variety of their properties. While the structural characteristics of medium and heavy nuclei vary fairly smoothly, only single deviations are observed, the structure of light nuclei varies sharply, two neighboring light nuclei are often completely different from each other. This, on the one hand, makes their study a very interesting task, and on the other hand it makes it difficult to identify common trends. Our interest in light neutron-rich nuclei …
Obtained Of Powder Coatings By Detonation Spraying, D. B. Buitkenov, B. K. Rakhadilov, Zh. B. Sagdoldina, M. Maulet
Obtained Of Powder Coatings By Detonation Spraying, D. B. Buitkenov, B. K. Rakhadilov, Zh. B. Sagdoldina, M. Maulet
Eurasian Journal of Physics and Functional Materials
In this work, consider the aspects of obtaining powder coatings that possessing certain working properties obtained by detonation spraying. Experimental research were carried on the effect of technological parameters of the detonation spraying process on the phase composition and properties of Ti-Si-C coatings. It is determined that when the volume of filling the detonation barrel with an explosive mixture increases to 70% in the detonation wave flow, the Ti3SiC2 powder partially decomposes into TiC consequently the high-speed shock interaction of heated to high temperatures. Installed that when filling the barrel with an explosive mixture of 50% and …
Comparison Of Calculated By Dftb Electronic Excitation Energies Of Cds Nanosized Clusters With Dft Results, A. A. Aldongarov, A. M. Assilbekova, I. S. Irgibaeva, A. I. Mantel
Comparison Of Calculated By Dftb Electronic Excitation Energies Of Cds Nanosized Clusters With Dft Results, A. A. Aldongarov, A. M. Assilbekova, I. S. Irgibaeva, A. I. Mantel
Eurasian Journal of Physics and Functional Materials
Nano-dimensional crystalline cadmium sulfide is a semiconductor that exhibits size-dependent opto-electronic properties, determined by the effects of quantum confinement. Due to these effects, it is possible to adjust the optical properties of the final cadmium sulfide clusters by varying their size. In this work we report the results of a theoretical study of CdS nanoparticles with the methods of the density functional tight-binding (DFTB) and the time-dependent density functional theory TD DFT. The calculations of the electronic absorption spectra of CdS crystals were performed on cadmium sulfide nanoparticles with an amount of from 5 to 137 atoms. The DFTB method …
Testing And Modeling Hpge Detector With Anti-Compton Shield, N. T. Tursunbayev, B. A. Urazbekov
Testing And Modeling Hpge Detector With Anti-Compton Shield, N. T. Tursunbayev, B. A. Urazbekov
Eurasian Journal of Physics and Functional Materials
Simulating with GEANT4 of anti-Compton shield containing eight BGO scintillators that works on anti-coincidence with HpGe detector was presented. The coefficient value of Compton tail suppression on 60Co spectrum was taken by simulating and from experiment. Comparing results of experimental data with simulating were presented. The influence of anti-coincidence inclusion on the detector efficiency was determined with simulation.
Influence Of The Detonation-Spraying Mode On The Phase Composition And Properties Of Ni-Cr Coatings, M. Maulet, B. K. Rakhadilov, Zh. B. Sagdoldina, A. B. Kassymov, D. N. Kakimzhanov
Influence Of The Detonation-Spraying Mode On The Phase Composition And Properties Of Ni-Cr Coatings, M. Maulet, B. K. Rakhadilov, Zh. B. Sagdoldina, A. B. Kassymov, D. N. Kakimzhanov
Eurasian Journal of Physics and Functional Materials
In work considers the results of studies of the phase composition and mechanical-tribological properties of Ni-Cr detonation coatings obtained at different values of the volume of filling the detonation barrel with an explosive acetylene-oxygen mixture. Analysis of the obtained experimental results indicates that the phase composition and properties of detonation coatings strongly depend on the technological parameters of spraying. When the barrel is filled with an explosive gas mixture of 40%, the coating is not dense enough, with noticeable boundaries between individual particles, which may be the result of insufficient heating and acceleration of the particles of the sprayed powder. …
Determination Of The Target Parameters Using The Monte Carlo Method For An Experiment On Inelastic Neutron Scattering In Different Samples At The "Tangra" Installation, S. B. Dabylova, Yu. N. Kopatch, S. K. Sakhiev, D. N. Grozdanov, N. A. Fedorov
Determination Of The Target Parameters Using The Monte Carlo Method For An Experiment On Inelastic Neutron Scattering In Different Samples At The "Tangra" Installation, S. B. Dabylova, Yu. N. Kopatch, S. K. Sakhiev, D. N. Grozdanov, N. A. Fedorov
Eurasian Journal of Physics and Functional Materials
Using the tagged neutron method at the "TANGRA" facility at Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research based on the ING-27 standard neutron generator, a study of the 14.1 MeV inelastic neutron scattering reaction on different nuclei was carried out. The angular distributions of g-quanta accompanying inelastic neutron scattering on atomic nuclei were measured. This article presents a GEANT4-based program that allows calculating the interaction of fast neutrons with matter and simulating the experiment and also presenting the results of the experiment in a convenient and visual form. Using the written program, optimal target parameters …
A Spatial Localization Of Structural Degradation Areas In The Single Crystal Turbine Blades By Means Of A Neutron Tomography Method, K. M. Nazarov, S. E. Kichanov, E. V. Lukin, A. V. Rutkauskas, B. N. Savenko
A Spatial Localization Of Structural Degradation Areas In The Single Crystal Turbine Blades By Means Of A Neutron Tomography Method, K. M. Nazarov, S. E. Kichanov, E. V. Lukin, A. V. Rutkauskas, B. N. Savenko
Eurasian Journal of Physics and Functional Materials
The single crystal nickel-based superalloy turbine blades have been studied by means of a neutron tomography method as a non-destructive structural probe. Di erences in neutron attenuation coe cients inside volume of metal bodies of the turbine blades have been found. Those observed di erences could be associated with inner structural incoherence areas arising in the process of operation of the turbine blades. Applications of special algorithms for a three-dimensional imaging data analysis allow obtaining a spatial distribution of those areas inside the turbine blades and estimate those volumes. To study a temperature evolution of structural incoherence areas, the additional …
Calculation Of Proton Transfer Cross Sections In The 14n + 12c Reaction At 116 Mev Using The Dwba Method, A. K. Azhibekov, K. A. Kuterbekov, A. M. Kabyshev, A. M. Mukhambetzhan
Calculation Of Proton Transfer Cross Sections In The 14n + 12c Reaction At 116 Mev Using The Dwba Method, A. K. Azhibekov, K. A. Kuterbekov, A. M. Kabyshev, A. M. Mukhambetzhan
Eurasian Journal of Physics and Functional Materials
Calculations of level energies in the shell model of deformed and spherical nuclei are performed for 14N nuclei. The present theoretical analysis of the 12C(14N,13 C)13N reaction at 116 MeV was performed by means of the FRESCO code. Our theoretically calculated di erential cross sections give a fair description of the experimental data for the proton transfer reaction. Based on calculation for 116 MeV predicted calculations for region from Coulomb barrier to a maximum energy available at the DC-60 heavy ion accelerator were made.
A Root-Based Program For Analysing T-Odd Asymmetry Results Of The Neutron-Induced Fission Of Heavy Nuclei, D. B. Berikov, G. S. Ahmadov, Yu. N. Kopatch, K. Sh. Zhumadilov
A Root-Based Program For Analysing T-Odd Asymmetry Results Of The Neutron-Induced Fission Of Heavy Nuclei, D. B. Berikov, G. S. Ahmadov, Yu. N. Kopatch, K. Sh. Zhumadilov
Eurasian Journal of Physics and Functional Materials
This paper presents a ROOT based program that allows processing the experimental data on the study of ROT-asymmetry in the angular distribution of fission products and present the results of the experiment in a convenient and visual form. The program can work with huge data sets and detect very subtle e ects. The algorithm used by the program is given in this work. The overall description of the experimental setup, as well as data acquisition and processing systems, are presented, too.
Evolution Of Structural And Magnetic Parameters Of Nickel Nanotubes Under Irradiation Of Fe7+ Ions, A. Shumskaya, E. Kaniukov, D. Shlimas, M. Zdorovets, A. Kozlovskiy
Evolution Of Structural And Magnetic Parameters Of Nickel Nanotubes Under Irradiation Of Fe7+ Ions, A. Shumskaya, E. Kaniukov, D. Shlimas, M. Zdorovets, A. Kozlovskiy
Eurasian Journal of Physics and Functional Materials
This work is devoted to investigations of nickel nanotubes behavior under influence of swift heavy ion irradiation. High-energy irradiation initiates damage process inside nanostructures and can cause the appearance of new phases with interesting properties. To understand the basic principles of the evolution of structural and magnetic parameters of nanostructures under the influence of high-energy processes, detailed study of nickel nanotubes irradiated with various fluences of Fe 7+ ions was carried out.
Influence Of Electrolytic-Plasma Surface Quenching On The Structure And Strength Properties Of Ferritic-Pearlite Class Wheel Steel, B. K. Rakhadilov, Y. Y. Tabiyeva, G. K. Uazyrkhanova, L. G. Zhurerova, D. Baizhan
Influence Of Electrolytic-Plasma Surface Quenching On The Structure And Strength Properties Of Ferritic-Pearlite Class Wheel Steel, B. K. Rakhadilov, Y. Y. Tabiyeva, G. K. Uazyrkhanova, L. G. Zhurerova, D. Baizhan
Eurasian Journal of Physics and Functional Materials
This paper examines the influence of electrolyte-plasma surface hardening on the structure and micro hardness of wheel steel mark 2. In the work electrolyte-plasma surface quenching was carried out in an electrolyte made from an aqueous solution of 10% carbamide (NH 2 ) 2 CO+20% sodium carbon ate Na 2 CO 3 . The work investigated the strength limit, fluidity and wear intensity of the wheeled steel after electrolyte-plasma surface quenching. After electrolytic-plasma surface quenching, a batch, high-temperature plate and low-temperature plate martensit is formed on the surface of the sample. Investigations have been carried out on microhardness determination on …
The Effect Of Detonation Spraying On The Phase Composition And Hardness Of Al2o3 Coatings, B. K. Rakhadilov, D. B. Buytkenov, D. Kakimzhanov, R. S. Kozhanova, G. S. Bektasova
The Effect Of Detonation Spraying On The Phase Composition And Hardness Of Al2o3 Coatings, B. K. Rakhadilov, D. B. Buytkenov, D. Kakimzhanov, R. S. Kozhanova, G. S. Bektasova
Eurasian Journal of Physics and Functional Materials
The article were studied the e ect of detonation spraying on the structure and properties of Al 2 O 3 coatings. It was determined that reducing the delay time between shots is leading to increase the hardness and elastic module of Al 2 O 3 coatings. It was found on the basis of X-ray di raction analysis that the main reason for the increasing in hardness with a decreasing in the delay time between shots is associated with increasing in the volume fraction of α -Al 2 O 3 phase. The studies of X-ray di raction presented that the highest …
Suitability Testing Of Polyethylene Terephthalate Film As A Solid-State Nuclear Track Detector For Using In Radon Studies, D. Yerimbetova, V. Stepanenko, A. Kozlovskiy, K. Zhumadilov
Suitability Testing Of Polyethylene Terephthalate Film As A Solid-State Nuclear Track Detector For Using In Radon Studies, D. Yerimbetova, V. Stepanenko, A. Kozlovskiy, K. Zhumadilov
Eurasian Journal of Physics and Functional Materials
The present work describes the procedure for testing the suitability of a polyethylene terephthalate film (after irradiation with heavy ions it is widely used in various fields) as an alpha-track detector. The test was carried out in order to determine the prospects for the use of this film in studies evaluating the indoor and outdoor radon concentrations. The study was conducted using a radionuclide source of alpha particles Am-241. Irradiated film samples were chemically treated. In order to further compare the results, unirradiated film samples were also chemically etched under the same conditions. To determine the presence of tracks, compare …
The Study Of The Applicability Of Invar Nanostructures For The Reduction Of P-Nitrophenyl Compounds, D. B. Borgekov, M. V. Zdorovets, D. I. Shlimas, A. L. Kozlovskiy, N. A. Khlebnikov, E. Yu. Kaniukov
The Study Of The Applicability Of Invar Nanostructures For The Reduction Of P-Nitrophenyl Compounds, D. B. Borgekov, M. V. Zdorovets, D. I. Shlimas, A. L. Kozlovskiy, N. A. Khlebnikov, E. Yu. Kaniukov
Eurasian Journal of Physics and Functional Materials
The results of the study of the phase composition of iron-nickel nanostructures susceptible to electron irradiation on the catalytic reduction of p-nitrophenyl compounds are presented. In the course of the studies, it was found that the nanostructures irradiated with a dose of 250 kGy, which are characterized by the presence of two phases, with the domination of the FeNi phase, have the highest recovery rate. In this case, nanostructures irradiated with a dose of 250 kGy, which showed the highest catalytic reaction rate, have a fairly short lifetime, which may be due to the rapid degradation of the surface of …
Spin Effects In The Process Of Associative Production Of The Higgs Boson And W± Boson, M. A. Manashova, F. N. Ahmadov
Spin Effects In The Process Of Associative Production Of The Higgs Boson And W± Boson, M. A. Manashova, F. N. Ahmadov
Eurasian Journal of Physics and Functional Materials
In this paper, we study the angular features of the signal and background processes of the associated production of the Higgs boson with W boson. Signal and background processes are generated using the CompHEP generator. Monte Carlo data is processed in ROOT software. In the course of studying the basic kinematic properties it was found that the shape of the distributions of the angular variables di ers for the signal and background processes. The presence of the spin e ect makes it possible to consider the di erence between the distributions of angular variables. The observed deviations can potentially reduce …
Investigation Of 244cm Dynamics Production In A Wwer-1200 Reactor For Fuel Based On 235u And Mox Fuel, A. M. Petrovski, K. I. Usheva, T. N. Korbut, E. A. Rudak, M. O. Kravchenko, L. F. Babichev
Investigation Of 244cm Dynamics Production In A Wwer-1200 Reactor For Fuel Based On 235u And Mox Fuel, A. M. Petrovski, K. I. Usheva, T. N. Korbut, E. A. Rudak, M. O. Kravchenko, L. F. Babichev
Eurasian Journal of Physics and Functional Materials
244Cm is a very important nuclide due to the high specific heat release and it may become reasonable to recycle the spent nuclear fuel to extract this isotope. In this work, the dynamics of 244Cm isotope production for the fuel assembly of the WWER-1200 reactor with an enrichment of 4.95% and burnup up to 70 MW · day/kg was calculated using Serpent Monte Carlo code. A similar calculations was performed for MOX-based fuel assembly with the same irradiation characteristics. It has been shown that production of 244Cm in high burnup uranium dioxide fuel, and especially in MOX fuel, reaches a …
Neutron Transfer And Nuclear Breakup In 208pb(11li, 9li) Reaction, A. K. Azhibekov, V. V. Samarin, K. A. Kuterbekov
Neutron Transfer And Nuclear Breakup In 208pb(11li, 9li) Reaction, A. K. Azhibekov, V. V. Samarin, K. A. Kuterbekov
Eurasian Journal of Physics and Functional Materials
Neutron transfer and nuclear breakup processes in reaction with weakly bound nucleus 11Li at energies near the Coulomb barrier are investigated in the framework of the time-dependent Schrödinger equation. The evolution of probability density of outer weakly bound neutrons of 11Li in the collision with 208Pb was studied. The probabilities and cross sections of outer neutrons removal (breakup processes and transfer to target nucleus) were calculated. Theoretical predictions of the two-neutron removal probability values were obtained for angles from 140◦ to 180◦ . The theoretical results have close similarity with experimental data for the two-neutron removal in reaction 208Pb(11Li,9 Li).
Influence Of Nanoparticle Weight Fraction On Morphology And Thermal Properties Of Hdpe/Sio2 Composite Films, A. A. Nabiyev
Influence Of Nanoparticle Weight Fraction On Morphology And Thermal Properties Of Hdpe/Sio2 Composite Films, A. A. Nabiyev
Eurasian Journal of Physics and Functional Materials
High-density polyethylene (HDPE) composite films with di erent amounts of SiO 2 nanoparticles ( 1 - 20 % vol.) were prepared by melt blending using a high-pressure thermal pressing technique. The morphological characterization, surface topology and distribution of nanoparticles in polymer matrix of nanocomposites were investigated by using Scanning electron microscopy (SEM) and atomic force microscopy (AFM). The thermal characterization of the nanocomposites were investigated by di erential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). SEM and AFM results revealed that silica nanoparticles aggregates were distributed mainly homogeneously. The nano-fillers change supramolecular structure and surface morphology of HDPE strongly. DSC …
Phase Composition And Thermoelectric Properties Of The Nanocomposite Alloys Naxcu2-X-Ys, M. M. Kubenova, M. Kh. Balapanov, K. A. Kuterbekov, R. Kh. Ishembetov, A. M. Kabyshev, Y. Kh. Yulaeva
Phase Composition And Thermoelectric Properties Of The Nanocomposite Alloys Naxcu2-X-Ys, M. M. Kubenova, M. Kh. Balapanov, K. A. Kuterbekov, R. Kh. Ishembetov, A. M. Kabyshev, Y. Kh. Yulaeva
Eurasian Journal of Physics and Functional Materials
Nanocrystalline alloys of the compositions Na 0.05 Cu 1.95 S, Na 0.075 Cu 1.925 S, Na 0.10 Cu 1.90 S, Na 0.125 Cu 1.750 S, Na 0.15 Cu 1.85 S, Na 0.17 Cu 1.80 S, Na 0.20 Cu 1.77 S were synthesized in a melt medium mixtures of hydroxides NaOH and KOH at a temperature of about 165 ◦ C. X-ray phase analysis showed that the alloys are heterophasic and consist of phases of Cu 9 S 5 digenite, CuS 2 copper disulfide, Covellite CuS, Cu 7 S 4 anilite in various combinations. The crystallite sizes range from 16 to …