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- Keyword
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- Luminescence (5)
- Crystals (4)
- Detonation spraying (4)
- Electron (4)
- Hardness (4)
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- Hole (4)
- Sulfates (4)
- Trap centers (4)
- Coating (3)
- Phase (2)
- Phase composition (2)
- Roughness (2)
- -Bi (1)
- -WO (1)
- Al2O3 (1)
- AlS (1)
- Alkali metal sulfates (1)
- Angular distribution (1)
- Beams of radioactive nuclei (1)
- Bosonic Cooper pairs (1)
- CZAS (1)
- Ceramics (1)
- Corrosion (1)
- Critical group (1)
- Crystal framework (1)
- CuZn (1)
- Cuprate high-temperature superconductors (1)
- DFT (1)
- Density Functional Theory (1)
- Density of states (1)
Articles 1 - 25 of 25
Full-Text Articles in Physical Sciences and Mathematics
Assessment Of The Radiation Situation In The Territory Of The Saumalkol Village, Located Near The Mothballed Uranium Mine Of The North Kazakhstan Region, A. S. Nygymanova, K. A. Kuterbekov, M. M. Bakhtin, E. I. Karpenko, A. M. Kabyshev
Assessment Of The Radiation Situation In The Territory Of The Saumalkol Village, Located Near The Mothballed Uranium Mine Of The North Kazakhstan Region, A. S. Nygymanova, K. A. Kuterbekov, M. M. Bakhtin, E. I. Karpenko, A. M. Kabyshev
Eurasian Journal of Physics and Functional Materials
For the first time after the mothballing of the uranium mine, comprehensive studies were carried out to assess the radiation situation in the territory of the Saumalkol settlement in the North Kazakhstan region. On the territory of the Saumalkol settlement, pedestrian and automobile gamma surveys were carried out, the rates of the ambient equivalent dose of gamma radiation, the flux density of . and . 220Rn particles and the equivalent equilibrium volumetric activity of daughter products of 222Rn and isotopes in residential premises were measured. Samples of soil, water and bottom sediments were taken for laboratory radio spectrometric and radiochemical …
Unusual Metallic Conductivity Of High-Tc Cuprates, S. Dzhumanov, Sh. R. Malikov, Sh. S. Djumanov
Unusual Metallic Conductivity Of High-Tc Cuprates, S. Dzhumanov, Sh. R. Malikov, Sh. S. Djumanov
Eurasian Journal of Physics and Functional Materials
The intrinsic mechanisms of the unusual metallic transports of three types of relevant charge carriers (large polarons, excited (dissociated) polaronic components of bosonic Cooper pairs and bosonic Cooper pairs themselves) along the CuO2 layers of high-Tc cuprates are identified and the new features of metallic conductivity in the CuO2 layers (i.e. ab -planes) of underdoped and optimally doped cuprates are explained. The in-plane conductivity of high-Tc cuprates is associated with the metallic transports of such charge carriers at their scatteringbylattice vibrations in thin CuO2 layers. The proposed charge transport theory in high-Tc cuprates allows to explain consistently the distinctive features …
Conducting And Dielectric Properties Of Na3fe2(Po4)3 And Na2fepo4f, A. A. Nogai, Zh. M. Salikhodzha, A. S. Nogai, D. E. Uskenbaev
Conducting And Dielectric Properties Of Na3fe2(Po4)3 And Na2fepo4f, A. A. Nogai, Zh. M. Salikhodzha, A. S. Nogai, D. E. Uskenbaev
Eurasian Journal of Physics and Functional Materials
In this research, the structure parameters, conducting and dielectric properties of Na3Fe2(PO4)3 and Na2FePO4F polycrystals were studied obtained by solid-phase synthesis. The phase transition temperatures, conducting and dielectric parameters of Na3Fe2(PO4)3 and Na2FePO4F polycrystals were refined. A comparative evaluation of the conductive properties of Na3Fe2(PO4)3 and Na2FePO4F polycrystals is given in this article. The prospects of using of Na3Fe2(PO4)3 and Na2FePO4F are justified as electrode materials in sodium ion batteries.
Study Of Change In Beryllium Oxide Strength Properties As A Result Of Irradiation With Heavy Ions, M. V. Zdorovets, A. L. Kozlovskiy, D. B. Borgekov, D. I. Shlimas
Study Of Change In Beryllium Oxide Strength Properties As A Result Of Irradiation With Heavy Ions, M. V. Zdorovets, A. L. Kozlovskiy, D. B. Borgekov, D. I. Shlimas
Eurasian Journal of Physics and Functional Materials
The paper presents data on changes in strength properties, including data on microhardness, crack resistance, bending strength and wear of BeO ceramics as a result of irradiation with heavy accelerated ions. O2+ Kr15+ The following types of ions were selected as heavy ions: (28 MeV), Ar8+ (70 MeV), (147 MeV), Xe22+ (230 MeV). Radiation doses were 10 13 -10 15 ion/cm2 , which make it possible to assess the effect of both single defects arising from radiation, and cluster overlapping defective areas occurring at large radiation doses. During the studies carried out, it was found that an increase in the …
Influence Of Cu+ Impurity On The Efficiency Of Creation Of Electron Hole Trapping Centers In Irradiated Na2so4-Cu Crystals, T. N. Nurakhmetov, B. N. Yussupbekova, A. M. Zhunusbekov, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Influence Of Cu+ Impurity On The Efficiency Of Creation Of Electron Hole Trapping Centers In Irradiated Na2so4-Cu Crystals, T. N. Nurakhmetov, B. N. Yussupbekova, A. M. Zhunusbekov, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
The mechanisms of creation of impurity and intrinsic electron-hole trapping centers in Na2SO4 . Cu crystals have been investigated by spectroscopic methods. It is shown that impurity and intrinsic electron-hole trapping centers in the crystal lattice Na2SO4 . Cu are created in the same energy distances approximately 3.87-4.0 eV and 4.43-4.5 eV. During the annealing of electron-hole trapping centers, the energy of the re combination processes is transferred to impurities.
Influence Of Plasma Electrolytic Hardening Modes On The Structure And Properties Of 65g Steel, B. K. Rakhadilov, R. S. Kozhanova, D. Baizhan, L. G. Zhurerova, G. U. Yerbolatova, A. A. Kalitova, L. N. Zhanuzakova
Influence Of Plasma Electrolytic Hardening Modes On The Structure And Properties Of 65g Steel, B. K. Rakhadilov, R. S. Kozhanova, D. Baizhan, L. G. Zhurerova, G. U. Yerbolatova, A. A. Kalitova, L. N. Zhanuzakova
Eurasian Journal of Physics and Functional Materials
This work presented a study of the structure, hardness and wear resistance of 65G steel treated with electrolyte-plasma hardening under different conditions. The electrolyte-plasma hardening technology and a laboratoryinstallation for the realisation of electrolyte-plasma hardening are also described. After electrolyte-plasmahardening,wehave established thata modifiedlayer consistsofthe a-phase (martensite) and M3C cementite. The study results showed that electrolyte-plasma hardening makes it possible to obtainlayersonthe65G steel surface thatprovidesan increasein microhardnessby2.6 times,wear resistanceby two times,resistance to abrasivewearby1.7 times compared to the original samples. In addition, local hardening ensures the achievement of technical and economic effects due to the absence of the need to isolate an …
Hyper Ne Structure S State Ofmuonic Helium Atom, D. T. Aznabayev, A. K. Bekbaev, V. I. Korobov
Hyper Ne Structure S State Ofmuonic Helium Atom, D. T. Aznabayev, A. K. Bekbaev, V. I. Korobov
Eurasian Journal of Physics and Functional Materials
In this work the nonrelativistic ionization energies3He2+µ-e-and4He2+µ-e-of helium-muonicatoms are calculated for S states.The estimates are based on the variational principle of exponentialexpansion. Convergence of the numerical values of variational energies is studied by increasing anumber of the basis functions N. That allows to claim that the obtained energy values have 30-33signi cant digits for S states
Mechanisms For The Creation Of Intrinsic Electron-Hole Trapping Centers In A Caso4 Crystal, T. N. Nurakhmetov, K. B. Zhangylyssov, A. M. Zhunusbekov, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, B. N. Yussupbekova, D. A. Tolekov
Mechanisms For The Creation Of Intrinsic Electron-Hole Trapping Centers In A Caso4 Crystal, T. N. Nurakhmetov, K. B. Zhangylyssov, A. M. Zhunusbekov, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, B. N. Yussupbekova, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
The mechanism of creation of electron-hole trapping centers in CaSO4 at 15-300 K was investigated by the methods of vacuum-ultraviolet and thermoactivation spectroscopy. It is shown that electron-hole trapping centers are formed upon trap of electrons in the anionic complexes SO2. and localization 4 of holes in the form of SO. radical. Based on the measurement of the spectrum of excitation of 4 long-wavelength recombination emission at 3.0-3.1 eV and 2.7 eV, the energy distance of the formed electron-hole trapping centers was estimated (4.43 eV and 3.87 eV).
Features Of Model Thin-Film Solar Cells Photoelectric Characteristics Based On A Non-Toxic Multi-Component Connection Cuzn₂Als₄, D. Sergeyev, K. Shunkeyev, B. Kuatov, N. Zhanturina
Features Of Model Thin-Film Solar Cells Photoelectric Characteristics Based On A Non-Toxic Multi-Component Connection Cuzn₂Als₄, D. Sergeyev, K. Shunkeyev, B. Kuatov, N. Zhanturina
Eurasian Journal of Physics and Functional Materials
In this paper, the features of the characteristics of model thin-film solar cells based on the non-toxic multicomponent compound CuZn2AlS4(CZAS) are considered. The main parameters (open-circuit voltage, short-circuit current, fill factor, efficiency) and characteristics (quantum efficiency, current-voltage characteristic) of thin-film solar cells based on CZAS have been determined. The minimum optimal thickness of the CZAS absorber is found (1-1.25 microns). Deterioration of the performance of solar cells with an increase in operating temperature (280-400 K) is shown. It is revealed that in the wavelength range of 390-500 nm CZAS has a high external quantum efficiency, which …
The Nature Of Intrinsic Recombination Emission In Srso4 Irradiated With Ultraviolet Photons, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva, B. Adil
The Nature Of Intrinsic Recombination Emission In Srso4 Irradiated With Ultraviolet Photons, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva, B. Adil
Eurasian Journal of Physics and Functional Materials
The synthesized SrSO4 crystalline powders were irradiated at photon energies from 6 . 12 eV, in the temperature range from 15 . 300K. The investigationwas carried outbythe methodsof atomic absorp tion, luminescence and vacuum ultraviolet spectroscopy. Intrinsic emissions were found at 3.7-3.8 eV, 4.2-4.6 eV and 4.9-5 eV, and long-wavelength recombination emissions at 2.6-2.7 eV and 2.9-3.0 eV.The synthesized SrSO4 crystalline powders were irradiated at photon energies from 6 . 12 eV, in the tem perature range from 15 . 300K. The investigationwas carried outbythe methodsof atomic absorption, luminescence and vacuum ultraviolet spectroscopy. Intrinsic emissions were found at 3.7-3.8 eV, …
An Overwiew On Corrosion Behavior Of Steels In Factory, H. Demiroren
An Overwiew On Corrosion Behavior Of Steels In Factory, H. Demiroren
Eurasian Journal of Physics and Functional Materials
In this study, corrosion behaviors of diffuser unit solutionbywhich raw sugar is produced from minced sugar beets in sugar factories on St-37 low alloy steel and AISI 304, 304L, 316 austenitic stainless steel types were examined. Moreover, influence of heat treatment on corrosion resistance was investigated. Corrosion tests were performed using mass loss method. SEM-EDX, X-rays Diffraction, microhardness and surface hardness analyses of samples were carried out. As a result, it was determined that AISI 304L and 316 steels have better corrosive resistance and heat treatment improves corrosion resistance.
Study Of Structural And Electronic Properties Of Intercalated Crtis2 Compound By Density Functional Theory, V. B. Parmar, A. M. Vora
Study Of Structural And Electronic Properties Of Intercalated Crtis2 Compound By Density Functional Theory, V. B. Parmar, A. M. Vora
Eurasian Journal of Physics and Functional Materials
In the present paper,we report the structural optimization of intercalated CrTiS2 compound by using Density Functional Theory (DFT) with Generalized Gradient Approximation (GGA) through Quantum ESPRESSO code. All the computations are carried out by using an ultra soft pseudopotential. The effect of charge transfer from guest 3d transition metal Cr-atom to self-intercalated compound TiS2 has been studied. In electronic properties, the energy band structure, total density of states (TDOS), partial density of states (PDOS) and Fermi surface have carried out. From the energy band structure, we conclude that the TiS2 intercalated compound hasa small bandgap while the …
The Influence Of Pulse-Plasma Treatment On The Phase Composition And Hardness Of Fe-Tib2-Crb2 Coatings, A. B. Kengesbekov, B. K. Rakhadilov, Yu. N. Tyurin, N. M. Magazov, M. K. Kylyshkanov, Zh. B. Sagdoldina
The Influence Of Pulse-Plasma Treatment On The Phase Composition And Hardness Of Fe-Tib2-Crb2 Coatings, A. B. Kengesbekov, B. K. Rakhadilov, Yu. N. Tyurin, N. M. Magazov, M. K. Kylyshkanov, Zh. B. Sagdoldina
Eurasian Journal of Physics and Functional Materials
This work are presented the research results of pulse plasma treatment influence on the phase composition, hardness, roughness and element composition of coatings on the bases of Fe-TiB2-CrB2. The Fe-TiB2-CrB2 coatingwas depositedby detonation method. The following pulse-plasmatreatment was used to modify the structure and properties of the surface layers of the sprayed coating. The results of mechanical experiments showed that the hardness of Fe-TiB2-CrB2 coating increased after the treatment. On the basis of the X-ray analysis, it has been established that the increase of coating hardness is connected with phase transformations in a surface layer, in particular, with formation of …
Study Of Gamma Radiation Shielding Efficiency By 0.5teo2-(0.5-X)Bi2o3-Xwo3 Glasses, A. Temir, K. Sh. Zhumadilov, A. Kozlovskiy, A. Smagulova, D. I. Shlimas, A. V. Trukhanov
Study Of Gamma Radiation Shielding Efficiency By 0.5teo2-(0.5-X)Bi2o3-Xwo3 Glasses, A. Temir, K. Sh. Zhumadilov, A. Kozlovskiy, A. Smagulova, D. I. Shlimas, A. V. Trukhanov
Eurasian Journal of Physics and Functional Materials
This article is devoted to the study of determination of gamma radiation shielding efficiency by new radiation-resistant glasses of the 0.5TeO2-(0.5-x)Bi2O3-xWO3 type. Asa method of obtaining glasses, the method of solid-phase synthesis combined with thermal annealing and subsequent hardening was used. The amorphous nature of the synthesized samples was confirmed by X-ray phase analysis. Determination of the shielding ef ficiency, as well as the effect of Bi2O3 and WO3 content in the glass composition on the attenuation efficiency was carried out by evaluation of gamma radiation intensi 137Cs ties from the source, with a gamma ray energy of 661 keV. …
Synthesis Reactions Of Neutron-Rich Isotopes Of Light Elements, Yu. E. Penionzhkevich
Synthesis Reactions Of Neutron-Rich Isotopes Of Light Elements, Yu. E. Penionzhkevich
Eurasian Journal of Physics and Functional Materials
One of the most complicated problems of experimental nuclear physics is the synthesis of exotic nuclei near the boundaries of stability. These nuclei, as a rule, are 10 or more neutrons awayfrom stable nuclei, have a short lifetime (less than 1 ms) and low binding energy. All this determines special requirements to the choice of reactions for the synthesis of such nuclei and the method of their transportation and registration. Mainly, for the synthesis of exotic nuclei, reactions of fragmentation of the bombarding heavy ion, direct reactions of the types ( p,d) , (d, p) , (d,n) ,( d , …
Intrinsic Emission And Electron-Hole Trapping Centers In Li2so4-Cu Crystals, T. N. Nurakhmetov, Zh. M. Salikhodzha, M. Y. Dolomatov, B. N. Yussupbekova, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Intrinsic Emission And Electron-Hole Trapping Centers In Li2so4-Cu Crystals, T. N. Nurakhmetov, Zh. M. Salikhodzha, M. Y. Dolomatov, B. N. Yussupbekova, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
In thepresent work, the emission and excitation spectrain Li2SO4-Cu crystalshave been obtainedby the methods of vacuum-ultraviolet and thermoactivation spectroscopy. We have studied the nature of emission from a pressed and annealed sample of Li2SO4-Cu powders. It has been revealed that at low temperatures Cu0-SO. -centers are formed during the trap of electrons by Cu+ -centers and during 4 localization of SO. 4 -radicals in the form of localized hole centers.
Time-Of-Flight Fission Fragment Spectrometer Of The Mavr Facility, D. Aznabayev, S. M. Lukyanov, Zh. Zeinulla, T. Issatayev, V. A. Maslov, K. Mendibayev, E. V. Melnik, V. I. Smirnov, S. S. Stukalov, A. V. Shakhov
Time-Of-Flight Fission Fragment Spectrometer Of The Mavr Facility, D. Aznabayev, S. M. Lukyanov, Zh. Zeinulla, T. Issatayev, V. A. Maslov, K. Mendibayev, E. V. Melnik, V. I. Smirnov, S. S. Stukalov, A. V. Shakhov
Eurasian Journal of Physics and Functional Materials
A time-of-flight system was created to register the reaction products and perform correlation measurements on a high-resolution magnetic analyzer (MAVR). The facility is located on the channel of the extracted beam of the U-400 cyclotron at the Laboratory of Nuclear Reactions JINR. The results of measuring the parameters of the time-of-flight spectrometer obtained on the basis of measuring the spontaneous fission fragments velocities of 252Cf are described. In addition, the results of the measurement of fission fragments in the 48Ca+238U reaction are presented. In this case, two time-of-flight arms were used, with the help of it is planned to carry …
Obtaining Multilayer Coatings By The Detonation Spraying Method, D. N. Kakimzhanov, B. K. Rakhadilov, D. B. Buitkenov, L. G. Zhurerova, M. K. Rakhadilov, D. K. Yeskermessov
Obtaining Multilayer Coatings By The Detonation Spraying Method, D. N. Kakimzhanov, B. K. Rakhadilov, D. B. Buitkenov, L. G. Zhurerova, M. K. Rakhadilov, D. K. Yeskermessov
Eurasian Journal of Physics and Functional Materials
This work were studied the effect of technological parameters of detonation spraying on the phase composition and tribological characteristics on the bases of NiCr and Al2O3 coatings. As well as therewas obtained and investigated multilayer coating on the basesof NiCr/NiCr-Al2O3/Al2O3. It was determined that during detonation spraying the phase composition of Al2O3 coatings strongly depends on the degree of filling the borehole with a gas mixture. The . -Al2O3 -phase content in the coatings increases when the degree of filling is 63% and 54%. Only one CrNi3 phase is observed on the diffractograms and only increase of reflex intensity (020) …
Non-Destructive Analysis Of Materials By Neutron Imaging At The Titan Facility, K. M. Nazarov, B. Mukhametuly, S. E. Kichanov, T. K. Zholdybayev, A. A. Shaimerdenov, K. B. Karakozov, D. S. Dyussambayev, M. T. Aitkulov, M. Yerdauletov, P. Napolskiy, M. Kenessarin, E. K. Kalymkhan, N. A. Imamverdiyev, S. H. Jabarov
Non-Destructive Analysis Of Materials By Neutron Imaging At The Titan Facility, K. M. Nazarov, B. Mukhametuly, S. E. Kichanov, T. K. Zholdybayev, A. A. Shaimerdenov, K. B. Karakozov, D. S. Dyussambayev, M. T. Aitkulov, M. Yerdauletov, P. Napolskiy, M. Kenessarin, E. K. Kalymkhan, N. A. Imamverdiyev, S. H. Jabarov
Eurasian Journal of Physics and Functional Materials
Since 2019, the TITAN neutron radiography and tomography facility have been operating at the WWR-K research reactor. The experimental station is intended for a wide range of applications in various fields of science. Since the launch, several interesting works have been carried out to study the internal features of lithium-ion batteries and geophysical materials. The spatial resolution of the detector system was sufficient to visualize the internal elements of the lithium battery and to separate individual grains of thepyrite mineral in the rock sample. This paper presents the technical parameters of the experimental setup and the results of the recent …
Effect Of The Detonation Spraying Mode On The Tribological Properties Of Nicr-Al2o3 Coatings, B. K. Rakhadilov, D. B. Buitkenov, E. Kabdykenova, Zh. B. Sagdoldina, L. G. Zhurerova
Effect Of The Detonation Spraying Mode On The Tribological Properties Of Nicr-Al2o3 Coatings, B. K. Rakhadilov, D. B. Buitkenov, E. Kabdykenova, Zh. B. Sagdoldina, L. G. Zhurerova
Eurasian Journal of Physics and Functional Materials
The article presents the study results of detonation spraying parameters on the phase composition and tribological properties of NiCr-Al 2 O 3 powder coatings. The spraying was carried out at a ratio of the acetylene oxygen mixture O 2 /C 2 H2 =1.856. The detonation barrel filling volume with an explosive gas mixture varied from 30% to 68%. It is determined that the phase composition of the NiCr-Al 2 O 3 coatings varies depending on the degree of detonation barrel filling. With an increase in the detonation barrels filling volume, the intensity of the NiCr diffraction peaks is decreased, and …
Influence Of Pulsed Plasma Treatment On Phase Composition And Hardness Of Cr3c2-Nicr Coatings, D. N. Kakimzhanov, B. K. Rakhadilov, Yu. N. Tyurin, O. V. Kolisnichenko, L. G. Zhurerova, M. K. Dautbekov
Influence Of Pulsed Plasma Treatment On Phase Composition And Hardness Of Cr3c2-Nicr Coatings, D. N. Kakimzhanov, B. K. Rakhadilov, Yu. N. Tyurin, O. V. Kolisnichenko, L. G. Zhurerova, M. K. Dautbekov
Eurasian Journal of Physics and Functional Materials
In this study, the research results of the influence of pulsed plasma treatment on phase composition, hardness, and roughness of Cr 3 C 2 -NiCr coatings are presented. The Cr 3 C2 -NiCr coating was applied to substrate 12Kh18N10T stainless steel by detonation spraying method. To change the physical and mechanical properties of sprayed coating's surface layers, subsequent pulse plasma treatment was used. The pulse plasma treatment leads to changing the roughness of Cr 3 C2 -NiCr coating. The results of mechanical tests showed that after pulsed plasma treatment, the hardness of Cr 3 C 2 -NiCr coating is increased. …
Assessment Of Radiation Exposure In The Settlements Located In Stepnogorsk Area, D. S. Ibrayeva, M. N. Aumalikova, K. B. Ilbekova, M. M. Bakhtin, P. K. Kazymbet, Sh. S. Ibrayeva, K. Sh. Zhumadilov
Assessment Of Radiation Exposure In The Settlements Located In Stepnogorsk Area, D. S. Ibrayeva, M. N. Aumalikova, K. B. Ilbekova, M. M. Bakhtin, P. K. Kazymbet, Sh. S. Ibrayeva, K. Sh. Zhumadilov
Eurasian Journal of Physics and Functional Materials
The Stepnogorsk area Northern Kazakhstan has a long historymining activities. Mining activities have lots of environmental and health impacts. The aims of this study were to characterizing the general radiological situation of the area and evaluate radiation exposure by scenarios in settlements. In this study radiological assessment was performed for critical group living in the territory contaminated with radionuclides; working and studying at school located on territoryformer mining site. The annual dose burden is 2.5 mSv y .1 in Zavodskoy, 1.9 mSv y .1 in Kvartsitka and 3.6 mSv y .1 in Aqsu; and exposure from radon is around 11 …
Mechanisms Of Formation Of Electron Hole Trap Centers In Likso4 Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova, D. A. Tolekov
Mechanisms Of Formation Of Electron Hole Trap Centers In Likso4 Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
The mechanisms of creation of electron-hole trapping centers in LiKSO4 have been investigated by the methods of vacuum and thermal activation spectroscopy. It is shown that electron-hole trapping centers are formed during the trappingof electronsbyanionic complexes and localizationofa holein the lattice in the form of the radical SO. . The appearance of phosphorescence at 3.0-3.1 eV, 2.6-2.7 eV and 2.3-2.4 4 eV confirms the creation of electron-hole trap centers.
Measuring The Yields And Angular Distributions Of Γ-Quanta From The Interaction Between 14.1 Mev Neutrons And Sodium Nuclei, S. B. Dabylova, Yu. N. Kopatch, N. A. Fedorov, D. N. Grozdanov, I. N. Ruskov, V. R. Skoy, K. Hramco, T. Yu. Tretyakova, S. K. Sakhiyev, R. B. Marzhokhov, E. P. Bogolyubov, V. I. Zverev, Yu. N. Barmakov
Measuring The Yields And Angular Distributions Of Γ-Quanta From The Interaction Between 14.1 Mev Neutrons And Sodium Nuclei, S. B. Dabylova, Yu. N. Kopatch, N. A. Fedorov, D. N. Grozdanov, I. N. Ruskov, V. R. Skoy, K. Hramco, T. Yu. Tretyakova, S. K. Sakhiyev, R. B. Marzhokhov, E. P. Bogolyubov, V. I. Zverev, Yu. N. Barmakov
Eurasian Journal of Physics and Functional Materials
A study of the reaction of inelastic scattering of 14.1 MeV neutrons by 23 Na nuclei was carried out at the TANGRA facility using the tagged neutron method. In this work, the energies of visible . transitions are determined, the yields of . -quanta are obtained, the angular distributions of . -quanta for 23 Na are measured. The results obtained are in good agreement with the data of other published experimental works.
Energy Transfer Of Intrinsic Electronic Excitation To Impurities In The Caso4-Mn System, T. N. Nurakhmetov, Zh. M. Salikhodzha, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva
Energy Transfer Of Intrinsic Electronic Excitation To Impurities In The Caso4-Mn System, T. N. Nurakhmetov, Zh. M. Salikhodzha, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva
Eurasian Journal of Physics and Functional Materials
The nature of the impurity emission center and the energy transfer mechanisms from intrinsic electronic excitations to the Mn2+ impurity centers in the CaSO4 . Mn crystal have been investigated. The methods of vacuum ultraviolet, atomic absorption and luminescence spectroscopy are used in a wide temperature range from 5 K to 300 K. The energy transfer of intrinsic electronic excitations to impurity emission centers in CaSO4 . Mn has been detected.