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In the interest of obtaining new polyester, heavy metal oxides PbCO3, Bi2O3, and CdO with numerous ratios have been added to the polyester resin. Five samples of labeled PR-1, PR-2, PR-3, PR-4, and PR-5 were prepared for this study. The values of linear attenuation coefficients (LAC) of the new polyester samples were measured using an HPGe detector. In the interest of ensuring the experimental setup, the value of LAC obtained from the HPGe detector as well as the value of LAC calculated using Phy-X software, have both been placed in one graph, which revealed a consistent result. The experimental value of those new polyester samples has been measured within the energy region 0.06–1.332 MeV, whereas the theoretical values have been calculated within the energy limit of 0.015–15 MeV. The results of all the new polyester samples showed an uplifting trend according to the rising energy at 0.06, 0.66, 1.17, and 1.33 MeV. At energy 0.06 MeV, sample PR-5 (ρ = 2.180 g/cm3) showed the lowest half value layer (HVL) among the polyester samples. This result is due to the addition of Bi2O3 and CdO into the samples' composition, increasing their density and enhancing the polyester's reduction ability. Considering the measured shielding parameters studied herein, it has been found that sample PR-5 (50 wt% Polymer resin, 25 wt% Bi2O3, 25 wt% CdO) had the highest shielding ability compared with the rest of the polyester samples. [ABSTRACT FROM AUTHOR]

In this investigation, the photons shielding factors for tungsten tellurite glasses with the yWO3–(90 − y)TeO2–10Na2O (y = 05, 10, 15 and 20 mol%), were reported. The penetration and attenuation factors for this system at various energies were reported using the Phy-X/PSD program. With increasing energy, it is observed that the linear attenuation coefficient (LAC) values, which range from 1.087–0.234 cm−1 (for TWN1) to 1.354–0.248 cm−1 (for TWN4), decrease exponentially. The LAC values were found to increase with the addition of WO3 from 1.087 to 1.354 cm−1 at 0.245 MeV and from 0.515 to 0.586 cm−1 at 0.444 MeV. Additionally, the greater potential for photon interactions at higher WO3 concentrations was indicated by the findings of the effective atomic number (Zeff) calculation. According to the obtained results, the maximal Zeff occurred at 0.284 MeV, which is equivalent to 32.53 for TWN1 and 36.89 for TWN4. The half value layer (HVL) for the samples under consideration between 0.245 and 1.458 MeV has been determined using the Phy-X/PSD. The HVL results demonstrated that at 0.284 MeV, more gamma rays are shielded whereas the potential of photon shielding decreases as energy increases. The tenth value layer (TVL) increased with rising energy and decreased with rising WO3 concentrations. TVL for TWN4 is the lowest (1.701 cm at 0.245 MeV and 9.284 cm at 1.458 MeV). [ABSTRACT FROM AUTHOR]