Polymeric composites for X-ray shielding applications

Azman, Nurul Zahirah Noor; Ramzun, M. R.

doi:10.1016/b978-0-12-820512-9.00018-6

Cited by 2 publications

(2 citation statements)

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“…Where the mass attenuation coefficient (MAC) was simulated by FLUKA and XCOM online software and compared with the experimental MAC values. The deviation, or difference percentage, between the theoretical and experimental results, was given by the following Equation (7). For the XCOM and the FLUKA, the maximum absolute relative deviation from the experimental values was 6.61% and 7.82 at 0.1218 MeV, while the minimum deviation was 0.32% and 0.46 at 0.9641 MeV, which indicated a suitable agreement between the experimental and XCOM and FLUKA results, and this is a prediction of the experimental accuracy.…”

Section: Experimental Results Of Attenuations Coefficientsmentioning

confidence: 99%

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Developing of Lead/Polyurethane Micro/Nano Composite for Nuclear Shielding Novel Supplies: γ-Spectroscopy and FLUKA Simulation Techniques

El-Khatib,

Abbas,

Mahmoud

et al. 2023

Polymers

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In this work, the effect of adding Pb nano/microparticles in polyurethane foams to improve thermo-physical and mechanical properties were investigated. Moreover, an attempt has been made to modify the micron-sized lead metal powder into nanostructured Pb powder using a high-energy ball mill. Two types of fillers were used, the first is Pb in micro scale and the second is Pb in nano scale. A lead/polyurethane nanocomposite is made using the in-situ polymerization process. The different characterization techniques describe the state of the dispersion of fillers in foam. The effects of these additions in the foam were evaluated, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) have all been used to analyze the morphology and dispersion of lead in polyurethane. The findings demonstrate that lead is uniformly distributed throughout the polyurethane matrix. The compression test demonstrates that the inclusion of lead weakens the compression strength of the nanocomposites in comparison to that of pure polyurethane. The TGA study shows that the enhanced thermal stability is a result of the inclusion of fillers, especially nanofillers. The shielding efficiency has been studied, MAC, LAC, HVL, MFP and Zeff were determined either experimentally or by Monte Carlo calculations. The nuclear radiation shielding properties were simulated by the FLUKA code for the photon energy range of 0.0001–100 MeV.

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Section: Experimental Results Of Attenuations Coefficientsmentioning

confidence: 99%

“…In recent years, the use of regular or nano polymer compounds as nuclear shielding materials has attracted the attention of many researchers due to their importance [1][2][3][4][5][6][7][8][9][10]. The qualities of nanopolymer compounds are comparable to those of traditional polymers, and they are ecologically benign [11].…”

Section: Introductionmentioning

confidence: 99%