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Articles 1 - 30 of 40
Full-Text Articles in Physics
150 Years Since The Development Of The Periodic System Of Chemical Elements By D.I. Mendeleev, Yu. Ts. Oganesyan, Yu. E. Penionzhkevich
150 Years Since The Development Of The Periodic System Of Chemical Elements By D.I. Mendeleev, Yu. Ts. Oganesyan, Yu. E. Penionzhkevich
Eurasian Journal of Physics and Functional Materials
The year 2019 has been declared by UNESCO as the year of the Periodic Table of Elements. 150 years ago, an outstanding Russian scientist D.I. Mendeleev systematized the chemical elements known at that time by chemical properties and created a table of elements. Since then, almost 60 chemical elements have been added to those known 150 years ago. Now the table has 118 chemical elements, most of which were synthesized artificially, in particular, on charged particle accelerators. Especially vigorous growth in the synthesis and research of new heavy transfermium elements was observed during the last 20 years, when about 20 …
The Effect Of Cupc Nanostructures On The Photo And Electrophysical Characteristics Of The Active Layer P3ht/Pcbm, A. K. Aimukhanov, B. R. Ilyassov, A. K. Zeinidenov, A. V. Zavgorodniy
The Effect Of Cupc Nanostructures On The Photo And Electrophysical Characteristics Of The Active Layer P3ht/Pcbm, A. K. Aimukhanov, B. R. Ilyassov, A. K. Zeinidenov, A. V. Zavgorodniy
Eurasian Journal of Physics and Functional Materials
The paper presents the results of a study of the influence of copper phthalocyanine (CuPc) nanostructures on the generation and transfer of charge carriers in the photoactive P3HT/PCBM layer. It was shown that the observed broadening and the shift in the maxima of the absorption spectra of P3HT/PCBM upon the addition of nanostructures to the polymer are associated with an increase in the degree of crystallization of the film. Using the method of impedance spectroscopy, it was found that CuPc nanostructures enhance the rate of recombination of charge carriers, which is probably due to the formation of surface defects. These …
Methods Of Calculation Of Radiation Protection For Operational Safety Optimization At Working With Radionuclide Photon Radiation Sources, D. S. Kim
Eurasian Journal of Physics and Functional Materials
Operational dosimetry solves the problem of implementing the principle of optimizing radiation safety, which is closely related to regulation and justification and implies a realistic achievable reduction in the dose load on a person when using ionizing radiation sources by reducing operating time, increasing the distance to radioactive material and shielding for attenuation of ionization flux. The article describes two ways of determining the thickness of shielding under necessity of making operational decision to protect a person from radionuclide source of known activity or the dose rate created by it. Based on the required multiplicity of its attenuation, which allows …
Md And Tem Evaluation Of Swift Xe Ion Induced Latent Tracks In Si3n4, R. A. Rymzhanov, A. Zhalmagambetova, A. Ibrayeva, A. Janse Van Vuuren, J. H. O’Connell, V. A. Skuratov
Md And Tem Evaluation Of Swift Xe Ion Induced Latent Tracks In Si3n4, R. A. Rymzhanov, A. Zhalmagambetova, A. Ibrayeva, A. Janse Van Vuuren, J. H. O’Connell, V. A. Skuratov
Eurasian Journal of Physics and Functional Materials
As known silicon nitride ceramics is considered as a candidate material for inert matrix fuel hosts used for transmutation of minor actinides. Unfortunately, by now very limited data is devoted to investigate of its stability under high energy heavy ion irradiation simulating fission fragment impact. Aim of our present study is a comparative analysis of parameters of latent tracks induced with swift Xe ion irradiation in polycrystalline Si3N4 using molecular dynamic (MD) simulation and high resolution transmission electron microscopy (TEM). Silicon nitride samples were irradiated with 220 MeV xenon ions at room temperature to fluence 5 × …
Detailed Study Of Rf And No Isotopes Radioactive Decay Properties, M. S. Tezekbayeva, A. V. Yeremin, O. N. Malyshev, M. L. Chelnokov, V. I. Chepigin, A. V. Isaev, A. V. Karpov, A. A. Kuznetsova, A. G. Popeko, Yu. A. Popov, A. I. Svirikhin, E. A. Sokol, A. Lopez-Martens, K. Hauschild, O. Dorvaux, B. Gall, P. Mosat, B. S. Sailaubekov
Detailed Study Of Rf And No Isotopes Radioactive Decay Properties, M. S. Tezekbayeva, A. V. Yeremin, O. N. Malyshev, M. L. Chelnokov, V. I. Chepigin, A. V. Isaev, A. V. Karpov, A. A. Kuznetsova, A. G. Popeko, Yu. A. Popov, A. I. Svirikhin, E. A. Sokol, A. Lopez-Martens, K. Hauschild, O. Dorvaux, B. Gall, P. Mosat, B. S. Sailaubekov
Eurasian Journal of Physics and Functional Materials
The experiments of detailed study of No and Rf isotopes radioactive decay properties in complete fusion reactions50Ti+208Pb and48Ca+208,206,204Pb with subsequent neutron evaporation from the excited compound nucleus at the kinematic separator SHELS were performed in FLNR JINR. The data of the256Rf decay properties and preliminary data of250No decay properties are presented.
An Analysis Of Cross Sections Of 9be + 28si Interaction In The Framework Of The Double Folding Model, A. M. Kabyshev, K. A. Kuterbekov, A. K. Azhibekov, K. Zh. Bekmyrza, A. M. Mukhambetzhan, M. K. Kenzhebek, Ye. K. Sovetkhanov, Zh. A. Yeltay
An Analysis Of Cross Sections Of 9be + 28si Interaction In The Framework Of The Double Folding Model, A. M. Kabyshev, K. A. Kuterbekov, A. K. Azhibekov, K. Zh. Bekmyrza, A. M. Mukhambetzhan, M. K. Kenzhebek, Ye. K. Sovetkhanov, Zh. A. Yeltay
Eurasian Journal of Physics and Functional Materials
In this paper the experimental data on the differential cross sections for elastic scattering of9Be ions on28Si nucleus at the energies of the incident nucleus ranging from 12 to 201.6 MeV were analyzed in the framework of the double folding model using the Paris NN-potential CDM3Y. A good agreement with the experimental angular distributions of differential cross sections for elastic scattering was obtained and the values of the total reaction cross sections were calculated. When the double folding potential was used as real and imaginary parts, no manifestation of the threshold anomaly was detected. The reason …
Electron Hole Capture Centers In An Irradiated K2so4-Cu Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova
Electron Hole Capture Centers In An Irradiated K2so4-Cu Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova
Eurasian Journal of Physics and Functional Materials
The methods of vacuum ultraviolet and thermal activation spectroscopy were used to measure the excitation spectra of impurity radiation in the fundamental absorption band of K2SO4-Cu crystals at 15 K and 300 K. An energy transfer was detected from the base to Cu+ impurities. The band gap of crystals K2SO4 was estimated. In K2SO4-Cu crystals, recombination radiation bands were detected at 2.95 ÷ 3.0 eV corresponding to electron hole capture centers.
Surface Modification Of Steel Mark 2 Electrolytic Plasma Exposure, Y. Y. Tabiyeva, B. K. Rakhadilov, G. K. Uazyrkhanova, L. G. Zhurerova, A. Maulit, D. Baizhan
Surface Modification Of Steel Mark 2 Electrolytic Plasma Exposure, Y. Y. Tabiyeva, B. K. Rakhadilov, G. K. Uazyrkhanova, L. G. Zhurerova, A. Maulit, D. Baizhan
Eurasian Journal of Physics and Functional Materials
This work is devoted to the research of the influence of the technological parameters of electrolytic plasma surface hardening on the structure and tribological properties of the surface of samples of the retaining steel mark 2. In the electrolytic plasma surface hardening was carried out in an electrolyte from an aqueous solution of 20% urea and 20% sodium carbonate. According to the result of metallographic and X-ray diffraction analysis, it was determined that the phase composition of steel mark 2 after processing varies, and fine martensite with a small amount of troostite and iron oxide is formed on the surface …
Shell Model Calculations For Deformed Li Isotopes, A. K. Azhibekov, V. V. Samarin, K. A. Kuterbekov, M. A. Naumenko
Shell Model Calculations For Deformed Li Isotopes, A. K. Azhibekov, V. V. Samarin, K. A. Kuterbekov, M. A. Naumenko
Eurasian Journal of Physics and Functional Materials
The nuclear shell model and its application to studying the structure of nuclei with deformed and spherical shapes are discussed. Calculations of level energies and wave functions in the shell model of deformed and spherical nuclei are performed for7,8,11Li nuclei. A detailed calculation scheme for solving theradial Schrödinger equation is presented.
Energy Transfer And Defect Formation Processes In Nano Silicon Under The Influence Of Epithermal Neutrons, A. Garibli
Energy Transfer And Defect Formation Processes In Nano Silicon Under The Influence Of Epithermal Neutrons, A. Garibli
Eurasian Journal of Physics and Functional Materials
The neutrons scattering and capture cross-section processes has been calculated for natural28Si ,29Si ,30Si isotopes which are main part of nanosilicon samples when irradiated for 20 hours by epithermal neutron flux. The values of energies has been determined which given to nanosilicon nuclei as a result of scattering processes in the energy intervals of investigated neutrons. The cross-sections of radiation capture process and the amount of31Si radioactive isotope which can be formed by by30Si isotope in the energy interval of epithermal neutrons, the parameters of energy supply and ionization processes …
Change Of Electrophysical Properties Of The Si(111) And Si(100) Surface In The Process Of Ion Implantation And Next Annealing, A. S. Rysbaev, I. R. Bekpulatov, B. D. Igamov, Sh. X. Juraev
Change Of Electrophysical Properties Of The Si(111) And Si(100) Surface In The Process Of Ion Implantation And Next Annealing, A. S. Rysbaev, I. R. Bekpulatov, B. D. Igamov, Sh. X. Juraev
Eurasian Journal of Physics and Functional Materials
The change in the electrical properties of the Si(111) and Si(100) surfaces during ion implantation and subsequent annealing was studied. The possibilities of controlling of the electrophysical properties of the Si(111) and Si(100) surface layers by the implantation of ions of alkaline and alkaline-earth elements are analyzed. Some electrophysical properties of semiconductors containing p- and n-structures and the possibilities of their application in electronics are discussed.
Dynamical Approach For Synthesis Of Superheavy Elements: Fusion Mechanism And Nuclear Structure, Y. Aritomo, N. Liyana, B. Yanagi, H. Hachikubo
Dynamical Approach For Synthesis Of Superheavy Elements: Fusion Mechanism And Nuclear Structure, Y. Aritomo, N. Liyana, B. Yanagi, H. Hachikubo
Eurasian Journal of Physics and Functional Materials
To synthesis of superheavy elements, the shell structure is very important not only in the stability of nuclei, but also the fusion process, especially the cold fusion reaction. We employ the Langevin equation with the microscopic transport coefficients and calculate the fusion cross section for the reaction70Zn+208Pb→278Cn. In the dynamical process, the effect of nuclear structure is discussed.
Neutron-Physical Parameters At The Outlet Of The Wwr-K Reactor Beam Tube, A. B. Bauyrzhan, S. N. Koltochnik, M. T. Aitkulov, D. S. Dyussambayev, A. A. Shaimerdenov, B. Mukhametuly, N. T. Burtebaev
Neutron-Physical Parameters At The Outlet Of The Wwr-K Reactor Beam Tube, A. B. Bauyrzhan, S. N. Koltochnik, M. T. Aitkulov, D. S. Dyussambayev, A. A. Shaimerdenov, B. Mukhametuly, N. T. Burtebaev
Eurasian Journal of Physics and Functional Materials
The paper is devoted to the neutron-physical parameters obtained via combined calculations and experimental measurements for the exit of the WWR-K reactor beam tube. The experimentally measured values of the thermal and fast neutron flux densities at the exit comprise 9.6 × 108 and 8.4 × 107 cm-2 s-1 , respectively. The dose rate of gamma-emission is 30 Sv/h. The obtained parameters will be used in designing of the collimation and screening systems of the installation for radiography and tomography to be created at the beam tube #1.
Investigation Of Radio-Emission From Extensive Air Shower At High Mountain Cosmic Ray Station At An Altitude Of 3340 M Above Sea Level, M. Nassurlla, T. Kh. Sadykov, B. A. Iskakov, Y. M. Tautayev, K. Tastanova, M. B. Khabargeldina, A. I. Zhumabayev, A. D. Beisenova, A. Haungs, O. A. Novolodskaya, T. Idrisova, N. M. Salikhov
Investigation Of Radio-Emission From Extensive Air Shower At High Mountain Cosmic Ray Station At An Altitude Of 3340 M Above Sea Level, M. Nassurlla, T. Kh. Sadykov, B. A. Iskakov, Y. M. Tautayev, K. Tastanova, M. B. Khabargeldina, A. I. Zhumabayev, A. D. Beisenova, A. Haungs, O. A. Novolodskaya, T. Idrisova, N. M. Salikhov
Eurasian Journal of Physics and Functional Materials
The complex EAS installation of the Tien Shan mountain cosmic ray station which is situated at a height of 3340 m above sea level includes the scintillation and Cherenkov detectors of charged shower particles, an ionization calorimeter and a set of neutron detectors for registering the hadronic component of the shower, and a number of underground detectors of the penetrative EAS component. Now it is intended to expand this installation with a promising method for detecting the radio-emission generated by the particles of the developing shower. The facility for radio-emission detection consists of a three crossed dipole antennae, one being …
The Effect Of High-Temperature Annealing On The Phase Transformations Of The Perovskite Ytio3-X System, D. A. Mustakhieva, I. Z. Zhumataeva, A. L. Kozlovsky, K. K. Kadyrzhanov
The Effect Of High-Temperature Annealing On The Phase Transformations Of The Perovskite Ytio3-X System, D. A. Mustakhieva, I. Z. Zhumataeva, A. L. Kozlovsky, K. K. Kadyrzhanov
Eurasian Journal of Physics and Functional Materials
This paper presents the results of a study of the structural characteristics of perovskite systems based on YTiOx. These samples were subjected to heat treatment in the process of solid-phase synthesis. The change in physicochemical properties was investigated by scanning electron microscopy, X-ray structural and energy dispersive analysis. In the course of the work, it was found that the synthesized samples are a mixture of three phases characteristic of yttrium compounds with titanium. A quantitative change in the phases during the heat treatment indicates phase transformations and a change in the basic crystallographic characteristics. The results of these …
The Gibb’S Free Energy And Magnetic Susceptibility Of Samarium Chalcogenides (Smx, X=S, Se And Te), D. Raj Adhikari, S. Khatri, D. Kumar Chaudhary, H. Prasad Lamichhane
The Gibb’S Free Energy And Magnetic Susceptibility Of Samarium Chalcogenides (Smx, X=S, Se And Te), D. Raj Adhikari, S. Khatri, D. Kumar Chaudhary, H. Prasad Lamichhane
Eurasian Journal of Physics and Functional Materials
In the present paper, the magnetic susceptibility have been studied under the effect of pressure at constant temperature in samarium chalcogenides (SmX, X=S, Se and Te). The samarium chalcogenides have predicted the pressure induced structural and electronic transition from NaCl structure (FCC lattice) to CsCl structure (BCC lattice). The f energy level of electrons in the compounds (SmX, X=S, Se and Te) have been shifted towards 5d conduction band due to the influence of pressure at constant temperature. The variation of the magnetic susceptibility under the effect of pressure at constant temperature have been calculated. The calculated values and …
Safety Analysis For The Wwr-K Research Reactor Converted To Leu Fuel, S. N. Koltochnik, A. A. Shaimerdenov
Safety Analysis For The Wwr-K Research Reactor Converted To Leu Fuel, S. N. Koltochnik, A. A. Shaimerdenov
Eurasian Journal of Physics and Functional Materials
Recently in the WWR-K water-water research reactor the former HEU fuel, enriched to 36% in Uranium- 235, was changed to LEU one, enriched to 19.7%, with substantial change of the core configuration. In view of reactor conversion, a new Safety Analysis Report (SAR) was developed for the WWR-K reactor. Substantiation of reactor safe operation under both normal operation and emergency conditions was done under thermal-hydraulic approach. In the analysis developed prior to physical start up it was assumed that a main circulation pump (MCP) provides the coolant flow rate in the core equal to 350 m 3 /h (a certified …
Creation Of Integrated System For Registration Radio Emissions From High-Energy Extensive Air Showers At An Altitude 3340 Meters Above Sea Level, M. Nassurlla, T. Kh. Sadykov, B. A. Iskakov, Y. M. Tautayev, K. Tastanova, M. B. Khabargeldina, A. I. Zhumabayev, A. D. Beisenova, A. Haungs, O. A. Novolodskaya, T. Idrisova, N. M. Salikhov
Creation Of Integrated System For Registration Radio Emissions From High-Energy Extensive Air Showers At An Altitude 3340 Meters Above Sea Level, M. Nassurlla, T. Kh. Sadykov, B. A. Iskakov, Y. M. Tautayev, K. Tastanova, M. B. Khabargeldina, A. I. Zhumabayev, A. D. Beisenova, A. Haungs, O. A. Novolodskaya, T. Idrisova, N. M. Salikhov
Eurasian Journal of Physics and Functional Materials
At the High mountain station of cosmic rays at an altitude of 3340 meters above sea level in 2018, work on modernization of registration of radio emission from extensive air showers was carried out. To date, 4 radio antennas have been installed in the direction of north, south, west, east at a distance of 30 meters from the registration center. Registration is carried out in the frequency range 30 - 80 MHz. As a result of the preliminary experiment, some event candidates were selected that demonstrate the presence of a noticeable radio signal pulse in the vicinity of the nearest …
The Effect Of Irradiation With Swift Heavy Ions On The Structural And Morphological Properties Of Beryllium Oxide Ceramics, A. L. Kozlovskiy, A. E. Ryskulov, V. V. Uglov, S. B. Kislitsin
The Effect Of Irradiation With Swift Heavy Ions On The Structural And Morphological Properties Of Beryllium Oxide Ceramics, A. L. Kozlovskiy, A. E. Ryskulov, V. V. Uglov, S. B. Kislitsin
Eurasian Journal of Physics and Functional Materials
In this study the results of structural and morphological changes in Ni12+ heavy ion irradiated BeO ceramics are presented. Irradiation was carried out on DC-60 heavy ion accelerator using Ni12+ ions with an energy of 100 MeV with irradiation fluence of 1013 -1014 ions/cm2 . It has been determined that change in magnitude of atom displacements from lattice sites is exponential, which is conditioned by defect overlap regions occurrence at fluence of 1014 ions/cm2 , followed by formation of a large number of migrating defects in structure, leading to crystal structure distortion and …
Additional Arguments In Favor Of True Quaternary Fission Of Low Excited Actinides, D. V. Kamanin, A. A. Alexandrov, I. A. Alexandrova, Z. I. Goryainova, E. A. Kuznetsova, A. O. Strekalovsky, O. V. Strekalovsky, V. E. Zhuchko, Yu. V. Pyatkov, A. V. Tomas, V. Malaza
Additional Arguments In Favor Of True Quaternary Fission Of Low Excited Actinides, D. V. Kamanin, A. A. Alexandrov, I. A. Alexandrova, Z. I. Goryainova, E. A. Kuznetsova, A. O. Strekalovsky, O. V. Strekalovsky, V. E. Zhuchko, Yu. V. Pyatkov, A. V. Tomas, V. Malaza
Eurasian Journal of Physics and Functional Materials
Specific linear structures in the region of a big missing mass in the fission fragments mass correlation distributions were revealed due to effective cleaning of this region from the background linked with scattered fragments. One of the most pronounced structures looks like a rectangle bounded by the magic nuclei. The fission events aggregated in the rectangle show a very low total kinetic energy. We propose possible scenario of forming and decay of the multi-cluster pre-scission configuration decisive for the experimental findings.
Optimization Of Deposition Parameters For Thin Film Lithium Phosphorus Oxynitride (Lipon), B. Uzakbaiuly, A. Mukanova, I. Kurmabbayeva, Z. B. Bakenov
Optimization Of Deposition Parameters For Thin Film Lithium Phosphorus Oxynitride (Lipon), B. Uzakbaiuly, A. Mukanova, I. Kurmabbayeva, Z. B. Bakenov
Eurasian Journal of Physics and Functional Materials
Thin film of lithium phosphorus oxynitride (LIPON) was successfully deposited by radio frequency (RF) magnetron sputtering technique using a Li3PO4 target. The optimal deposition parameters were determined for the thin films with the highest target-substrate distance. Characterization of deposited film was carried out by AFM, FTIR and Raman spectroscopy, which showed incorporation of nitrogen into the film as both doubly, Nd , and possibly triply, Nt, coordinated form. The ac impedance spectroscopy measurements revealed that the highest ionic conductivity of 1.1 µScm-1 was achieved at room temperature for the samples prepared at the …
Dft Calculation Of Optical Properties Of New Neutral Hexacoordinated Si(Bzimpy) 2 Complexes, A. N. Bimukhanov, A. A. Aldongarov, T. A. Schmedake
Dft Calculation Of Optical Properties Of New Neutral Hexacoordinated Si(Bzimpy) 2 Complexes, A. N. Bimukhanov, A. A. Aldongarov, T. A. Schmedake
Eurasian Journal of Physics and Functional Materials
We consider optical properties of 4 neutral hexacoordinated Si(bzimpy) 2 complexes, containing the 2,6- bis(benzimidazol-2 ′ -yl)pyridineligandusingDFTmethod. Thegeometricalparametersoftheoptimized cluster structures, the electronic absorption spectrum, and the molecular orbitals of the structures under consideration are discussed. The effect of addition of the substituents ligands to the of Si(bzimpy) 2 compound is considered. We found that succesive addition of substituents shifts HOMO and LUMO to higher values. The manipulation may provide desirable optical properties of the material.
Obtaining Homogeneous Silicon In The Process Of Alumothermic Reduction Of Silicon Dioxide, G. N. Chumikov, V. V. Klimenov, N. S. Tokmoldin, S. Zh. Tokmoldin
Obtaining Homogeneous Silicon In The Process Of Alumothermic Reduction Of Silicon Dioxide, G. N. Chumikov, V. V. Klimenov, N. S. Tokmoldin, S. Zh. Tokmoldin
Eurasian Journal of Physics and Functional Materials
The influence of charge components on emergence of a homogeneous phase of silicon in the process of silicon dioxide reduction by aluminium has been studied. Optimal process parameters affecting the quality of the end product have been identified. These include the ratio of components of the synthetic charge (CaO, SiO2 , CaF2 ), the optimal amount of SiO2 , the optimal amount of a reducing agent (Al) and the optimal Si/slag ratio. The homogeneous phase of silicon is easily separated from the slag, which contributes to the reduction of waste silicon during further technological operations.
Break-Up Reactions Of 6li, 7be, And 8b, T. Issatayev, S. M. Lukyanov, Yu. M. Sereda, A. G. Artukh, D. Aznabayev, C. Borcea, S. Calinescu, B. Erdemchimeg, B. M. Hue, A. M. Kabyshev, S. A. Klygin, G. A. Kononenko, K. A. Kuterbekov, K. Mendibayev, V. V. Ostashko, Yu. E. Penionzhkevich, F. Rotaru, T. D. Thiep, A. N. Vorontsov
Break-Up Reactions Of 6li, 7be, And 8b, T. Issatayev, S. M. Lukyanov, Yu. M. Sereda, A. G. Artukh, D. Aznabayev, C. Borcea, S. Calinescu, B. Erdemchimeg, B. M. Hue, A. M. Kabyshev, S. A. Klygin, G. A. Kononenko, K. A. Kuterbekov, K. Mendibayev, V. V. Ostashko, Yu. E. Penionzhkevich, F. Rotaru, T. D. Thiep, A. N. Vorontsov
Eurasian Journal of Physics and Functional Materials
Secondary beams (6Li,7Be,8B) were obtained by the separation of fragmentation products of a15N ion beam (50 MeV/A) impinging on a Be target using the COMBAS spectrometer. The secondary products were detected by a telescope consisting of five Si-detectors (dE) and a stop CsI(Tl) detector. The telescope allowed us to achieve unambiguous particle identification of fragments originating from incident secondary beams as well as their reaction products resulting from interaction with the Sidetectors, chosen as a secondary target. This way, break-up reactions of6Li,7Be and8B have been studied …
Structure Of Β-Decay Strength Function Sβ(E) And Wigner Spin-Isospin Su(4) Symmetry, I. N. Izosimov
Structure Of Β-Decay Strength Function Sβ(E) And Wigner Spin-Isospin Su(4) Symmetry, I. N. Izosimov
Eurasian Journal of Physics and Functional Materials
It is shown that when the parent nucleus has nn Borromean halo structure, then after Gamow-Teller (GT) β -decay of parent state or after M1 γ -decay of Isobar Analogue Resonance ( IAR ) the states with np tango halo structure or mixed np tango + nn Borromean halo structure can be populated. Resonances in the GT β -decay strength function Sβ (E) of halo nuclei may have np tango halo structure or mixed np tango + nn Borromean halo structure. Demonstrated that the nuclei with Z/N ≈ 0.6 may correspond to the SU(4) region.
New Nuclear Structure Data Beyond 132sn, R. Lozeva
New Nuclear Structure Data Beyond 132sn, R. Lozeva
Eurasian Journal of Physics and Functional Materials
Nuclear structure studies beyond132Sn on the shell evolution, the competition or coexistence of single- particle and collective structures and the GT strength are performedusing prompt and decay spectroscopy. Here, we present an overview of our recent data from such experiments on neutron-induced fission products in the mass chain A=136 using the EXILL and Lohengrin spectrometers at the ILL in the framework of other studies we have recently performed in the region around 132 Sn.
Isobaric Resonances, Beta Decay And Delayed Multineutron Emission In Very Neutron-Rich Nuclei, I. N. Borzov, S. V. Tolokonnikov
Isobaric Resonances, Beta Decay And Delayed Multineutron Emission In Very Neutron-Rich Nuclei, I. N. Borzov, S. V. Tolokonnikov
Eurasian Journal of Physics and Functional Materials
The isobaric-analog resonancesfor nuclei around the neutron shell closures at N = 20, 50, 82 are treated in thefullyself-consistentDensityFunctionalplusContinuumQuasiparticleRandomPhaseApproximation (DF+CQRPA).The aim is to check how the self-consistency is preserved in the calculations for long isotopic chains. The beta-decay half-lives and delayed multi-neutron emission branchingare calculated for the reference Ni isotopic chain. The relative contributions of the GT and first-forbidden transitions are compared with that of the relativistic QRPA and Finite Amplitude Method. The accuracy of the global beta decay calculations performed within FRDM+RPA, DF+CQRPA and RHB+QRPA models are analysed.
Total Reaction Cross Sections Of Neutron-Rich Light Nuclei Measured By The Combas Fragment-Separator, B. Erdemchimeg, A. G. Artukh, S. Davaa, B. M. Hue, T. Isataev, S. A. Klygin, G. A. Kononenko, G. Khuukhenkhuu, S. M. Lukyanov, T. I. Mikhailova, V. A. Maslov, K. Mendibaev, Yu. M. Sereda, Yu. E. Penionzhkevich, A. N. Vorontzov
Total Reaction Cross Sections Of Neutron-Rich Light Nuclei Measured By The Combas Fragment-Separator, B. Erdemchimeg, A. G. Artukh, S. Davaa, B. M. Hue, T. Isataev, S. A. Klygin, G. A. Kononenko, G. Khuukhenkhuu, S. M. Lukyanov, T. I. Mikhailova, V. A. Maslov, K. Mendibaev, Yu. M. Sereda, Yu. E. Penionzhkevich, A. N. Vorontzov
Eurasian Journal of Physics and Functional Materials
Preliminary results of measurements of the total reaction cross sections σR for nuclei4He,6He,8He,7Li,8Li,9Li,11Li,7Be,9Be,10Be,11Be,12Be,8B,10B,11B and12B nuclei at energy range (10-50) AMeV with28Si target is presented. The secondary beams of light nuclei were produced by bombardment of the 15N (50 AMeV) primary beam on Be target and separated by COMBAS fragment- separator. In dispersive focal plane a horizontal slit defined the momentum acceptance as 1% and a …
Simulation Of Trajectories In The Mavr High-Resolution Magnetic Spectrometer, V. A. Maslov, V. A. Zernyshkin, Yu. E. Penionzhkevich, I. V. Kolesov, O. B. Tarasov
Simulation Of Trajectories In The Mavr High-Resolution Magnetic Spectrometer, V. A. Maslov, V. A. Zernyshkin, Yu. E. Penionzhkevich, I. V. Kolesov, O. B. Tarasov
Eurasian Journal of Physics and Functional Materials
Charged-particle trajectories in the MAVR high resolution magnetic spectrometer are simulated. The latter has been constructed at the U400 accelerator for purifying the incident beam and identifying the products of nuclear reactions induced by the beams of stable and radioactive nuclei. In this paper we present the MAVRPC++ software package, aimed at reconstructing the spectrometer focal plane, optimizing the fields of quadrupole and dipole magnets, and estimating the solid-angle acceptance for secondary particles.
Exotic Nuclides At The Reactor Pik: Pitrap Project, Yu. N. Novikov, Yu. I. Gusev, S. V. Chenmarev, S. A. Eliseev, P. E. Filyanin, T. V. Koneva, D. A. Nesterenko, A. V. Popov, D. Simonovski, O. I. Bezrodnova, N. S. Martynova, Yu. V. Nechiporenko
Exotic Nuclides At The Reactor Pik: Pitrap Project, Yu. N. Novikov, Yu. I. Gusev, S. V. Chenmarev, S. A. Eliseev, P. E. Filyanin, T. V. Koneva, D. A. Nesterenko, A. V. Popov, D. Simonovski, O. I. Bezrodnova, N. S. Martynova, Yu. V. Nechiporenko
Eurasian Journal of Physics and Functional Materials
The PITRAP-project for mass measurements of exotic nuclides is based on the use of high flux-reactor PIK and a high precision Penning trap mass spectrometry. This combination gives a synergy in exploration of different problems of fundamental physics: from astrophysics to neutrino physics.