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    Medical radiation shielding in terms of effective atomic numbers and electron densities of some glasses
    (Elsevier, 2023) Akkurt, Iskender; Alomari, Ali; Imamoglu, Meltem; Ekmekçi, Ismail
    For 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.
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    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, Haneen
    Understanding 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.
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    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, Ismail
    The 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.