Mehmet KILIÇ, Yaşar KARABUL, Zeynep GÜVEN ÖZDEMİR, Yaren ERGİN

Experimental Comparison of PbO and BaO Addition Effect on Gamma Ray Shielding Performance of Epoxy Polymer

This study was devoted to investigate the gamma ray shielding abilities of the epoxy composites prepared by using two differentreinforcing materials: barium oxide and lead oxide. The Epoxy/PbO and Epoxy/BaO composites were produced by using 10 wt.%, 20wt.%, and 40 wt.% reinforcing materials to obtain low weight radiation shielders. The heaviness of the samples were compared withsome conventional shielding materials such as lead, steel, concrete etc. The gamma ray shielding performance of the pure epoxy andthe composites were measured experimentally by using NaI(Tl) detector. In the experiments, Ba-133 point radioactive source was alsoutilized as a gamma ray source with the 81 keV and 356 keV energies. As the gamma ray shielding parameters of the composites, themass attenuation coefficient, half layer value and tenth layer value thicknesses and mean free path distance were considered. Aftercomparison of the related parameters of the PbO and BaO added epoxy composites, it was revealed that the gamma radiation shieldingperformance of the PbO added epoxy composite can also be obtained by adding BaO to the epoxy. However, to achieve the sameperformance, BaO should be added twice as much as the PbO additive percentage. On the other hand, it was determined that 40 wt.%BaO added epoxy composite exhibits a better radiation shielding performance than steel, concrete and Gd2O3 nanoparticle added epoxycomposite for the photons with 81 keV and 356 keV energies. Thus, a lightweight and non-toxic gamma-ray shielding material can beproduced by using an Epoxy/BaO composite.

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Azman, N. N., Siddiqui, S., Hart, R., & Low, I.-M. (2013). Effect of particle size, filler loadings and x-ray tube voltage on the transmitted x-ray transmission in tungsten oxide—epoxy composites. Applied Radiation and Isotopes, 71(1), 62-67.
Büyükyıldız, M., Taşdelen, M., Karabul, Y., Çağlar, M., İçelli, O., & Boydaş, E. (2018). Measurement of photon interaction parameters of high-performance polymers and their composites. Radiation Effects and Defects in Solids, 173(5-6), 474-488.
Eisenbud, M., & Gesell, T. F. (1997). Environmental radioactivity from natural, industrial and military sources: from natural, industrial and military sources: Elsevier.
Hou, Y., Li, M., Gu, Y., Yang, Z., Li, R., & Zhang, Z. (2018). Gamma ray shielding property of tungsten powder modified continuous basalt Fiber reinforced epoxy matrix composites. Polymer Composites, 39(S4), E2106-E2115.
Hussain, R., Haq, Z.-U., & Mohammad, D. (1997). A study of the shielding properties of poly ethylene glycol-lead oxide composite. J Islamic Acad Sci, 10(3), 81-84.
Kucuk, N., Cakir, M., & Isitman, N. A. (2012). Mass attenuation coefficients, effective atomic numbers and effective electron densities for some polymers. Radiation protection dosimetry, 153(1), 127-134.
Li, R., Gu, Y., Wang, Y., Yang, Z., Li, M., & Zhang, Z. (2017). Effect of particle size on gamma radiation shielding property of gadolinium oxide dispersed epoxy resin matrix composite. Materials Research Express, 4(3), 035035.
Li, R., Gu, Y., Zhang, G., Yang, Z., Li, M., & Zhang, Z. (2017). Radiation shielding property of structural polymer composite: continuous basalt fiber reinforced epoxy matrix composite containing erbium oxide. Composites Science and Technology, 143, 67-74.
Ms, A., Mondal, A., & Tripathi, R. (2010). Radiation Protection Manual.
Sayyed, M. (2016). Investigation of shielding parameters for smart polymers. Chinese journal of physics, 54(3), 408-415.
Singh, K., Singh, H., Sharma, V., Nathuram, R., Khanna, A., Kumar, R., . . . Sahota, H. S. (2002). Gamma-ray attenuation coefficients in bismuth borate glasses. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 194(1), 1-6.
Singh, N., Singh, K. J., Singh, K., & Singh, H. (2006). Gamma-ray attenuation studies of PbO–BaO–B2O3 glass system. Radiation Measurements, 41(1), 84-88.
Singh, S., Kumar, A., Singh, D., Thind, K. S., & Mudahar, G. S. (2008). Barium–borate–flyash glasses: as radiation shielding materials. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 266(1), 140-146.
Singh, V. P., Medhat, M., & Shirmardi, S. (2015). Comparative studies on shielding properties of some steel alloys using Geant4, MCNP, WinXCOM and experimental results. Radiation Physics and Chemistry, 106, 255-260.
Soylu, H., Lambrecht, F. Y., & Ersöz, O. (2015). Gamma radiation shielding efficiency of a new lead-free composite material. Journal of Radioanalytical and Nuclear Chemistry, 305(2), 529-534.
Tekin, H. O., & Manici, T. (2017). Simulations of mass attenuation coefficients for shielding materials using the MCNP-X code. Nuclear Science and Techniques, 28(7), 95.