Numerical investigation of the gamma attenuation properties of thermoplastic polymers
Abstract
The gamma radiation attenuation properties of thermoplastic polymers, specifically Polypropylene (PP), Polyethylene terephthalate (PET), and Polybutylene terephthalate (PBT), were investigated for their possible use as a radiation shielding material. Their shielding properties were evaluated based on μ/Ï, HVL, Zeff, and Neff. The theoretical and simulated μ/Ï values were determined using XCOM and PHITS, respectively, at photon energy range 0.0595 MeV to 1.332 MeV. The percent error obtained ranged from 0.16% to 0.36%. Moreover, trends in μ/Ï, Zeff, and Neff parameters with respect to photon energies showed that their values increased with decreasing energy while the HVL values decreased. The results also revealed that PP had the greatest μ/Ï and Neff values, whereas PET had the highest Zeff and lowest HVL.
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