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Öğe Gamma-neutron shielding parameters of (S3Sb2)x(S2Ge)100_x chalcogenide glasses nanocomposite(Pergamon-Elsevier Science Ltd, 2023) Sengul, Aycan; Akhtar, M. Shaheer; Akkurt, Iskender; Malidarre, Roya Boodaghi; Er, Zuhal; Ekmekci, IsmailIn the purpose of radiation shielding, (S3Sb2)x(S2Ge)100_x (x symbolscript 15, 30, 45 and 60 mol%) chalcogenide glasses were surveyed in the current study. The shielding achievements of the glass samples were investigated by using Phy-X/PSD simulation codes. This is done in terms of (LAC, mu, cm_1) for four different samples. Further, other essential parameters such as HVL, and neutron removal cross section were also calculated. These parameters were also tested with variation of SbS concentration in samples.Öğe Medical radiation shielding in terms of effective atomic numbers and electron densities of some glasses(Elsevier, 2023) Akkurt, Iskender; Alomari, Ali; Imamoglu, Meltem; Ekmekçi, IsmailFor more than at decade, oxy-fuoride glasses are the main interest for many researchers. This is due to the importance of glasses as it is used for many different applications. Radiation shielding is one of the important application as it is important for human health. In this study, the gamma ray shielding characters of glasses formulated as (20-x)CaF2-xAl2O3–20Bi2O3–59B2O3–CuO (x = 3,6,9,12,15) were investigated. This is done obtaining of linear attenuation coefficients (LAC), effective atomic number (Zeff) and effective electron density (Neff) using Phy-X/PSD code.Öğe Prediction of gamma ray spectrum for 22Na source by feed forward back propagation ANN model(Pergamon-Elsevier Science Ltd, 2023) Teke, Cagatay; Akkurt, Iskender; Arslankaya, Seher; Ekmekci, Ismail; Gunoglu, KadirThe radiation has been used in a variety of different fields since its discovery and thus its measurement becomes vital in these industries. Different type detector may be used to measure gamma rays depends on the purposes of measurements. Gamma ray energy spectrum is an important to determine either elemental analysing of a sample or radiation shielding purposes. On the other hand, Artificial Neural Network (ANN) may be used to predict and analysing of gamma-ray spectrum. In this study, gamma ray spectrum from 22Na source detected in NaI (Tl) detector was estimated by ANN. There have been installed ten different ANN models to find the network structure that produces the best predictive value for the gamma ray spectrum NaI (Tl) Detector. Estimation study has been continued with the ANN model with be possessed of lowest error value. ANN model was created by using energy, distance and gamma-rays energy spectrum (called Io) values. In the ANN model developed using the feed forward back propagation algorithm, were used artificial neurons two in the input layer, ten in the hidden layer and one in the output layer. For the case of present work, the experimental data was used 70% for education, 20% for validation and 10% for testing. The estimated values obtained with the ANN model were compared with the experimental results and a good correlation has been found between them (R2 = 0.99).Öğe The role of La2O3 rare earth (RE) material in the enhancement of the radiation shielding, physical, mechanical and acoustic properties of the tellurite glasses(Taylor and Francis Ltd., 2022) Boodaghi Malidarre, Roya; Akkurt, Iskender; Ekmekci, Ismail; Zakaly, Hesham M. H.; Mohammed, HaneenUnderstanding the influence of Rare-Earth Elements (REEs) in tellurite-rich glass is vital for developing the technology due to applications of REEs in various technologies like television displays, solid-state lasers, tunable waveguides, tunable fiber grating, etc. With this motivation, the present work analyzes the radiation shielding, physical, structural, mechanical and acoustic properties of the (1-x)TeO2-xLa2O3: x = 5, 7, 10, 15 and 20 (mol%) glass samples. For this purpose, using user-friendly MCNPX Monte Carlo code the LaTe1–LaTe5 glass samples are irradiated, and thus the radiation shielding competencies are obtained for wide energy spans ranging from 0 to 15 MeV. The derived Half Value Layer ((Formula presented.)) outcomes are compared with the theoretical studies namely, Phy-X:PSD results for some selected energies. In addition, the mechanical features are obtained by the (Makishima Mackenzie) Mak-Mac Model. Based on the mechanical characteristics, acoustic properties are extracted and reported in this paper. The structure and dimensionality of the preferred samples are derived based on the Bergman and Kantor model for fluid and compositions with the help of the Fractal Bond Connectivity (FBC). Findings show that La2O3 is an effective Rare Earth (RE) material to increase the shielding ability of the LaTe glass samples from LaTe1 to LaTe5. Furthermore, from the obtained results can be concluded that the La2O3 RE material is able to break the glass structure and increase the linkage, and thus, the acoustic properties will be improved.Öğe Variation in gamma ray shielding properties of glasses with increasing boron oxide content(De Gruyter Open Ltd, 2022) Almisned, Ghada; Akkurt, Iskender; Tekin, Huseyin Ozan; Yuksek, Ismail; Ekmekçi, IsmailThe study of radiation shielding properties for a material is an important part of research in scientific world. It is expressed in terms of the linear linear coefficients (LAC) which can also be used to obtain some other parameters. The gamma shielding properties of glass with addition of boron oxides in different amounts were studied, thereby obtaining linear attenuation coefficients (LAC), mean free path (mfp), Exposure Buildup factor (EBF) which were calculated using Phy-X/PSD code. It was found that increasing boron oxide content of 0, 2, 4, 6, 8 (w %) in glass increased the gamma attenuation coefficients.
