IV. Eurasian conference on nuclear science and its application : presentations, 31 October- 3 November 2006. Baku, Azerbaijan.
Permanent URI for this collection
Browse
Browsing IV. Eurasian conference on nuclear science and its application : presentations, 31 October- 3 November 2006. Baku, Azerbaijan. by Title
Now showing 1 - 20 of 111
Results Per Page
Sort Options
Item About limitation of elementery particles mass(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Mukhtarov, A. I.; Bölüm YokThe simple examples of spontaneous breaking of various symmetries for the scalar theory with fundamental mass have been considered Higgs' generalizations on "fundamental mass” that was introduced into the theory on a basis of the five-dimensional de Sitter space are foundItem Absorbed dose estimates at the cellular level for 111In(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Ünak, Perihan; 11752; Bölüm YokMicrodosimetric calculations of Auger and conversion electrons of 111In have been evaluated for single cell and cell clusters. A VsBasic program has been used to calculate stopping power, LET, range values and deposited energies per decay for Auger and conversion electrons of 111In. Chemical composition of cell has been taken into account in this model and results were compared with water medium. Besides, total absorbed doses have been calculated for the radionuclides distributed randomly within the cell and clusters. Cross-fire irradiation has been considered for clusters of cells. In this case, absorbed doses per cell within a cluster were found significantly higher than absorbed doses per single cell depending on the cluster size. Results were concluded that 111In is a promising radionuclide for therapy of micrometatases which their width is mm or smaller.Item Accelerator technology for the mankind(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Sultansoy, Saleh; Bölüm YokParticle accelerators technology is one of the generic technologies which is locomotive of the development in almost all fields of science and technology. According to the U. S. Department of Energy: Accelerators underpin eveiy activity of the Office of Science and, increasingly, of the entire scientific enterprise. From biology to medicine, from materials to metallurgy, from elementary particles to the cosmos, accelerators provide the microscopic information that forms the basis for scientific understanding and applications. The combination of ground and satellite based observatories and particle accelerators will advance our understanding of our world, our galaxy, our universe, and ourselves. Because of this, accelerator technology should become widespread all over the world. Existing situation shows that a large portion of the world, namely the South and Mid-East, is poor on the accelerator technology. UNESCO has recognized this deficit and started SESAME project in Mid-East, namely Jordan. Turkic Accelerator Complex (TAC) project is more comprehensive and ambitious project, from the point of view of it includes light sources, particle physics experiments and proton and secondary beam applications. At this stage, TAC project includes: • Linac-ring type charm factory • Synchrotron light source based on positron ring • Free electron laser based on electron linac • GeV scale proton accelerator • TAC-Test Facility. First part of this presentation is devoted to general status of particle accelerators around the world. The second part deal with the status of the TAC proposal.Item Acceptance tests of a new gamma camera(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Taştan, S.; Kır, K. M.; Küçük, N. Ö.; Tunca, S.; Şahin, B.; Akın, A.; Bölüm YokItem Advanced directions of peaceful application of nuclear energy in the Republic of Azerbaijan(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Garibov, A. A.; Bölüm YokApplication of nuclear energy is the actual during last years due to depletion of organic sources of raw materials. Therefore, each country develops the programs on peaceful application nuclear energy and using alternative as well as other energy sources on the basis of the analysis of fuel-energy balance and energy demand state. The Republic of Azerbaijan has huge hydrocarbon resources and alternative energy sources. However, taking into account the fact that hydrocarbon resources can cover increasing energy demand at maximum 50 -60 years and renewable energy sources can not meet large energy demand during near future then the discovering of advanced ways on peaceful application of nuclear energy is of great importance.Item Analysis of nuclear power development scenarios in terms of nuclear fuel cycle service requirements(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Akbaş, Tahir; Ceyhan, Mehmet; Kocar, Cemil; TAEK-NGDThe role of nuclear power in future sustainable energy supply gets an increasing focus in several studies in the world. Various roadmap exercises have been undertaken to look essentially to the technical solutions for nuclear energy to fulfill such a role. This study describes the analysis of different nuclear power development scenarios, in terms of nuclear fuel cycle aspects such as natural uranium and enrichment requirements, spent fuel arising, etc. Calculations are done using the Nuclear Fuel Cycle Simulation System that has been developed by the International Atomic Energy Agency (IAEA). Nuclear Fuel Cycle Simulation System is a scenario based computer model for the estimation of fuel cycle service requirements. The model uses simplified approaches to calculate the fuel cycle requirements. These simplified approaches make the code capable to estimate the long term fuel cycle service requirements for both open and closed cycle fuel cycle strategy. Nuclear Fuel Cycle Simulation System takes strategy parameters, fuel parameters, control parameters as input and gives main front- end and back-end fuel cycle service requirements and spent fuel and plutonium arisings. Results of the calculations for the different nuclear power development scenarios and conclusions regarding the impact of the different fuel cycle options are presented in this paper.Item Angular dependence of M x-ray production differential cross-sections at 5.96 keV(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Durak, R.; Özdemir, Y.; Ateş, A.; Sağlam, M.; Erzeneoğlu, S.; Biber, M.; 2006; Bölüm YokThe knowledge of the angular dependence of M shell production differential cross-sections is important because of their extensive use in basic studies of photoelectric effect, characteristic X-ray production, internal conversion of γ-rays, radiative and non-radiative transition probabilities and development of more reliable angular dependence theoretical models describing fundamental inner-shell ionization processes. The angular dependence of M X-ray production differential cross-sections for selected heavy elements between Lu and Pt have been measured at 5.59 keV incident photon energy, at seven emission angles in the range 120° - 150° at intervals of 5°. The emission angle was set to 0°. The target M X-ray spectra were recorded by the collimated Si(Li) detector, which has an active area of 12.5 mm2, a sensitive crystal depth of 3 mm and a Be window of 0.025 mm thickness. The measured energy resolution of the detector system was 188 eV for an amplifier shaping time constant of 6 ps at the 5.9 keV peak of 55Fe. Angular dependence M X-ray production differential cross-sections have been derived, using the M-shell fluorescence yields, experimental total M X-ray production cross-sections and theoretical M-shell photoionization cross-sections. M X-ray production differential cross-sections are found to decrease with increase in the emission angle, showing an anisotropic spatial distribution of M X-rays. To the best of our knowledge, no other experimental results are available for worked elements in the angular range 120°-150° for comparison with present results. Extracted results have been compared with the theoretical predictions and semi empirical fits. The present experimental results are in good agreement with the theoretical values.Item Application of Monte Carlo calculations to the dose measurements(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Yüce, Ülkü Rabia; Meriç, N.; TAEK-SANAEMBalloon dacryocystoplasty (fluoroscopically guided transluminal balloon dilatation of the lacrimal drainage system), a minimally invasive interventional radiological procedure, is a significant alternative to the surgical treatment of obstructive epiphora. The procedure, however, has a risk of radiation exposure, since radiosensitive organs such as the eyes remain in the field of the primary X-ray beam and thyroid remain in the field of secondary X-ray beam. [1-3] To properly evaluate the risk/benefit ratio of this interventional radiological treatment, accurate knowledge of the ionizing radiation dose to these organs is necessary. However, assessing the dose from fluoroscopy is difficult, primarily due to the range of many parameters (kilovoltage, milliampere, field site and size, number of exposures, and fluoroscopy time). Since the Monte Carlo Technique eliminates these instrumental parameters, it can be used for dose calculation. In this work, the radiation dose received by the thyroid at the patient suffering “obstructive epiphora” desease during diagnosis and treatment has been measured experimentally on a physical phantom and calculated theoretically by the Monte Carlo Method using a mathematical phantom. Then Tissue Skin Ratio being the ratio of the thyroid-to-entrance skin dose has been determined experimentally and theoretically and related table has been obtained. The methods used are faund to be consistant with each other.Item Asymptotic normalization coefficient (nuclear vertex constant) and nuclar astrophysics problems(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Yarmukhamedov, R.; Artemov, S. V.; Burtebaev, N.; Igamov, S. B.; Nie, G. K.; Bölüm YokItem Automation of INAA of biological objects in radioanalytical center of INP as Ru(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Bakiev, S. A.; Danilova, E. A.; Kadirova, M.; Kadirov, U. S.; Kist, A. A.; Osinskaya, N. S.; Rakhmanov, J.; Bölüm YokUser’s “Biological objects Application” software for comparator technique of INAA some biological objects for automation process of INAA by using Canberra Genie 2000 Spectroscopy System has been developed. This Application works in interactive environment as a dialogue system with user and allows calculating required nuclides concentration in analyzed samples, separately for long-lived, middle-lived and short-lived nuclides.Item Comparison of soil organic matter accumulations under various soil management systems in vetch-wheat versus wheat-wheat rotaions in Central Anatolia using nuclear techniques(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Halitligil, Mahmut Basri; Kışlal, Hakan; TAEK-SANAEMWith this research work the quantitative estimation of soil organic matter dynamics, water and nitrogen use efficiencies in wheat-wheat and vetch-wheat (where vetch is green manured at 10 % flowering stage) rotation systems will be compared by using 13C and 15N techniques. Specific objectives of this research work includes a) to find out the water and nitrogen use by wheat in vetch-wheat rotation, thus to find out the soil moisture conservation , b) to find out the influence of the soil organic matter by green manuring of vetch, c) to trace the quantitative soil carbon change in vetch-wheat rotation in the long run d) to find out the effects of different irrigation and N fertilization rates to wheat yields, water and nitrogen use efficiencies by using neutron probe water balance method and 15N techniques, respectively, d) to find out the N2-fixation (using isotope dilution method) of vetch in vetch-wheat rotation. Significantly higher grain and stover wheat yields were obtained in the first year when irrigation was done and the N rate was increased. Nitrogen use efficiency of wheat increased with irrigation. Also, the N2- fixation of vetch at 10 % flowering (just before plowing down into the soil) in vetch-wheat rotation had been quantified by using wheat as reference crop. As expected with higher N rates and no irrigation less N2- fixation was obtained. Soil 13C analysis were done by IAEA Seibersdorf laboratoiy on the soil samples taken from different depths.of all treatments for the first year experiments. In the begining of the second year (October 2005) wheat was the only crop sown in both rotations. Soil moisture readings, were done every month and are still continuing. The harvest of wheat will be relaized in July 2006. Then we will have the wheat dry matter yields (both grain and stover), also the total nitrogen and 15N analysis will be done on the wheat plant samples that will be taken at harvest, and thus we will have the second year data on nitrogen and water use of wheat. Also, soil samples will be collected from different depths for 13C analysis. After all the data for the second year are obtained and analyzed the conclusions drawn will be reported.Item Cooperation potential within new organization of Çekmece Nuclear Research & Training Center(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Can, Şevket; Bölüm YokÇekmece Nuclear Research and Training Center (ÇNAEM) was established in 1962. ÇNAEM as a subsidiary of TAEK is charged to perform R&D activities on whole area of nuclear science and technology. Within 2006, the center has been re-organized in all departments and divisions for focusing of resources and capabilities on more nuclear-related activities. In this presentation, breafly, activities of the institute and then potential cooperation fields between ÇNAEM and other institutions will be explained.Item Determining profile of dose distribution for Pd-103 brachytherapy source(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Camgöz, B.; Yeğin, G.; Kumru, M. N.; 103959; Bölüm YokItem Developing of an algorithm for temperature control of TLD systems(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Camgöz, Y.; Bayburt, M.; Camgöz, B.; Bölüm YokItem Dielectric preperties and peculiarities of radiothermolumi nescence of compositions polypropylene-metal oxides(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Akhmedov, F. Y.; Ismailov, Y. M.; Bagirbekov, H. V.; Magerramov, A. M.; Aliyev, N. Sh.; Bölüm YokThe given work presents the experimental data on study of temperature dependences c (T) and angle tangent of dielectric losses tgδ (T) of polypropylene (PP) and composites on the basis of beryllium oxide BeO at different components ratios as well as investigation of radiothermoluminessence (RTL) in these systems. Comparing the results on temperature dependencies of dielectric permittivity s, angle tangent of dielectric lasses tgδ and RTL spectra of the studied compositions one can say that observed low -temperature maximum in temperature dependence of electro physical parameters (Ɛ and tgδ) of composites is the result of change of polymer matrix macromolecules molecular mobility and its effect on interfacial interaction with filler. The electro active polymeric films and compositions on their basis are used as sensitive elements, dosimeters, sensors in many branches of industiy, sensor electronics, ecology, etc.[l] Therefore, the study of their electroactive dielectric, sensor properties as well as establishment of interrelation of these properties with structural peculiarities, preparation technology, filling techniques, polarization the methods are the urgent. [2] It should be noted that many properties of composite materials are determined by interfacial interaction in polymer - filler system and its mechanism understanding will allow modification or prediction of their operating characteristic. [3] The present work object was the determination of interrelation between the dielectric properties and interfacial interaction polymer-filler.Item Distribution of radionuclides in polluted soils, lake and oil-field waters(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Garibov, A. A.; Mahmudov, H. M.; Muradov, F. R.; Velibeyov, G. Z.; Bölüm YokItem Distribution of radionuclides in Yevlakh region area(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Abbsov, Sh. M.; Suleymanov, B. A.; Mikailova, A. C.; Lisanova, E. V.; Bölüm YokIn suggested article has realized first investigate distribution of radionuclides in Yevlakh region area. Quantity of radionuclides (Ra - 226, Ra-228, K - 40, Co - 60, Cs - 134, Cs - 137) in soil and water samples determined by qamma-spectrometric methods. Activity Rn-222 in water samples learned by RAD -7 detector (0.16÷1.3Bk/l). Observing of Cs-137 (3.12 Bk/kq) in soil sample has been taken from Aran settlement area be explained a resualt of global setti process.Item Effect of efectron irradiation on Pb1-x Mnx Te epitaxiaf films(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Abbasov, Sh. M.; Agaverdiyeva, G. T.; Kerimova, T. I.; Sadigov, R. M.; Ibrahimova, R. A.; Bölüm YokThere has been studied the effect of electron irradiation on photoelectrical and optical properties of Pb1-x Mnx Te (0.01 ≤ x ≤ 0.05) epitaxial films containing 0.5÷1 at, % of gallium with thickness 1÷5mcm, obtained by the method of molecular beams condensation on substrates BaF2 (III).Item Effect of grape seed extract on lipid peroxidation, antioxidant activity and peripheral blood lymphocytes in rats exposed to radiation(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Enginar, Hüseyin; Cemek, M.; Karaca, T.; Ünak, Perihan; 58588; Bölüm YokThe radioprotective efficacy of grape seed extract (GSE) and vitamin E against whole body X-radiation was studied in Albino Wistar rats. Three groups of rats were investigated: control group (CG) intraperitoneal (i.p.) physiological serum 1 ml/day (n = 10), i.p., vitamin E group (VG) 50 mg/kg/day (n = 10), and i.p. grape seed extract group 50mg/kg/day (n=10). Four weeks later, 6 Gy radiation dose was given to rats. The blood samples were taken 24 hours later after irradiation and Lymphocyte, malondialdehyde (MDA), reduced glutathione (GSH), nitrate, nitrite, reduced ascorbic acid, retinol, (β-caratone and ceruloplasmin concentrations were analyzed. The levels of GSH (p <0.05), retinol (p <0.001), (β-caratone (p <0.05) and ceruloplasmin concentration (p <0.001) in GSE group were found to be higher than control group but the level of MDA (p <0.001) and nitrite concentration (p <0.05) in rats supplemented with GSE group were found to be lower than the CG. The results show that GSE has enhanced the antioxidant status and have decreased the incidence of free radical- induced lipid peroxidation in blood sample of rats exposed radiation.Item Effect of preliminary irradiation of Karaman-Ermenek lignite on their thermal decomposition(Azerbaijan National Academy of Sciences Institute of Radiation Problems ve Turkish Atomic Energy Authority, 2006) Çicek, F.; Eyubova, N.; Bölüm YokInfluence of γ-irradiation of lignite from Karaman-Ermenek deposit of Turkey on its following thermal decomposition was studied. The absorbed dose of preliminary irradiation is £> = 5.4-410.4 kGy, the lignite decomposition temperature is t = 350-600°C. H2, CO, C02 and hydrocarbon gases CrC4 are identified as a products during lignite semi coking. It’s shown that the quantity of semi coke gas volume and hydrocarbon gases concentration extremely depend on the preliminary radiation dose, the maximum gas volume corresponds to the absorbed dose 20-70 kGy. This experimental fact is explained by the competition between radiation induces processes of destruction and polycondensation in the lignite organic mass.