Effect of the Fe2O3 addition on the elastic and gamma-ray shielding features of bismuth sodium-borate glass system

Alyousef, Haifa A.; Alotiby, Mohammed; Hanfi, Mohamed Y.; Alotaibi, Badriah; Mahmoud, K.A.; Sayyed, M.I.; Al‒Hadeethi, Yas

doi:10.1007/s10854-021-05400-z

Cited by 23 publications

(5 citation statements)

References 42 publications

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“…This suggests that a thin layer of Zn-X glasses is needed to shield the low-energy photons, while when the energy of the radiation is increased; we need a thicker glass to enhance the shielding performance of the glass. This is in line with the recent results for other glass systems [ 31 , 32 , 33 ]. Additionally, we found that the addition of ZnO has an impact on the MFP.…”

Section: Resultssupporting

confidence: 93%

Impact of ZnO Modifier Concentration on TeO2 Glass Matrix for Optical and Gamma-Ray Shielding Capabilities

et al. 2022

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This study carried out a comparison of the optical and gamma ray shielding features of TeO2 with and without ZnO modifier concentration. Incorporating ZnO into the TeO2 network reduces the indirect band gap from 3.515–3.481 eV. When ZnO is added, refractive indices, dielectric constants, and optical dielectric constants rise from 2.271–2.278, 5.156–5.191, and 4.156–4.191 accordingly. The transmission coefficient and reflection loss are in direct opposition to each other. With increasing ZnO concentration in the selected glasses, the values of molar refractivity and molar polarizability decrease from 18.767–15.018 cm3/mol and from 7.444 × 10−24–5.957 × 10−24 cm3, respectively, while the electronic polarizability rises from 8.244 × 1024–8.273 × 1024, correspondingly. As expected by the metallization values, the glass systems are non-metallic. The linear attenuation coefficients (LAC) of the studied glass samples ensue through enhancing the photon energy range 0.0395–0.3443 MeV. There is a very slow decrease in the LAC from an energy of 0.1218–0.3443 MeV, yet there is a sharp decrease from an energy of 0.0401–0.0459 MeV. According to the obtained values of numerous shielding parameters such as LAC, MAC, HVL, MFP, and Zeff sample, Zn30 has shown the best radiation shielding ability comprising other studied samples.

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Section: Resultssupporting

confidence: 93%

Impact of ZnO Modifier Concentration on TeO2 Glass Matrix for Optical and Gamma-Ray Shielding Capabilities

et al. 2022

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“…XCOM is a widely used program to theoretically calculate gamma-ray attenuation coefficients, as well as interaction mechanisms for gamma-rays with an energy range from 1 keV to 100 GeV [33,34]. Attenuator coefficients such as mean free path (MFP), half-value layer (HVL), and tenth-value layer (TVL) are utilized to evaluate the radiation attenuation properties of EP-IF composites; these equations are tabulated in Table 2 [35][36][37][38][39][40]. The radiation shielding efficiency (RSE) of EP-IF composite that is used as a radiation shield is determined by using the initial (I 0 ) and transmitted (I) gamma line intensities obtained from peak area evaluation [41].…”

Section: Radiation Shielding Measurementsmentioning

confidence: 99%

Effect of Waste Iron Filings (IF) on Radiation Shielding Feature of Polyepoxide Composites

Alresheedi

Elsafi

2023

Crystals

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In the present work, photon and neutron attenuation properties of polyepoxide composites produced by doping waste iron filings (IF) at different percentages (0%, 20%, 40%, and 60% iron filing percentage) were obtained using theoretical and experimental techniques. The experimental technique was performed using an HPGe detector with four different gamma lines (0.0595, 0.6617, 1.173, and 1.333 MeV) emitted from three gamma-ray sources (241Am, 137Cs, and 60Co). The theoretical techniques for shielding parameters calculation are estimated with Phy-X software and the XCOM program as well. The experimental and theoretical values of the mass/linear attenuation coefficient (M/LAC), half/tenth value layer (H/TVL), mean free path (MFP), lead equivalent thickness (LEth), and radiation shielding efficiency (RSE) have been determined and compared. A good agreement was achieved during the comparison. The shielding performance of the prepared composites increased with increasing the iron filing rate, where we can arrange the performance of shielding according to EP–IF60 > EP–IF40 > EP–IF20 > EP–IF0 at all different experimental and theoretical energies. The effective and equivalent (Zeff, Zeq) atomic numbers as well as the exposure buildup factor (EBF) at different depletion distances or mean free paths (MFPs) have been calculated for all EP–IF composites. The lowest EBF was for EP–IF60 while the highest EBF was for EP–IF0 through the discussed energy from 0.015 to 15 MeV. Finally, the fast neutron removal cross-section (FRNC) has been calculated for the prepared composites and the results showed improvement in FNRC with increasing the iron filing rate.

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“…The MCNP-5 used ENDF/B-VI.8 as a primary source, but the Phy-X/PSD used only the NIST database. The geometry used in the MCNP-5 simulation was illustrated in Figure 1 and discussed in detail in many publications [32][33][34]. Additionally, the investigated glasses' chemical compositions were given in Table 1.…”

Section: Gamma-ray Simulation and Theoretical Calculationsmentioning

confidence: 99%

Influence of Li2O Incrementation on Mechanical and Gamma-Ray Shielding Characteristics of a TeO2-As2O3-B2O3 Glass System

et al. 2021

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According to the Makishema–Mackenzie model assumption, the dissociation energy and packing density for a quaternary TeO2-As2O3-B2O3-Li2O glass system were evaluated. The dissociation energy rose from 67.07 to 71.85 kJ/cm3, whereas the packing factor decreased from 16.55 to 15.21 cm3/mol associated with the replacement of TeO2 by LiO2 compounds. Thus, as a result, the elastic moduli (longitudinal, shear, Young, and bulk) were enhanced by increasing the LiO2 insertion. Based on the estimated elastic moduli, mechanical properties such as the Poisson ratio, microhardness, longitudinal velocity, shear velocity, and softening temperature were evaluated for the investigated glass samples. In order to evaluate the studied glasses’ gamma-ray shield capacity, the MCNP-5 code, as well as a theoretical Phy-X/PSD program, were applied. The best shielding capacity was achieved for the glass system containing 25 mol% of TeO2, while the lowest ability was obtained for the glass sample with a TeO2 concentration of 5 mol%. Furthermore, a correlation between the studied glasses’ microhardness and linear attenuation coefficient was performed versus the LiO2 concentration to select the glass sample which possesses a suitable mechanical and shielding capacity.

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Effect of the Fe2O3 addition on the elastic and gamma-ray shielding features of bismuth sodium-borate glass system

Cited by 23 publications

References 42 publications

Impact of ZnO Modifier Concentration on TeO2 Glass Matrix for Optical and Gamma-Ray Shielding Capabilities

Impact of ZnO Modifier Concentration on TeO2 Glass Matrix for Optical and Gamma-Ray Shielding Capabilities

Effect of Waste Iron Filings (IF) on Radiation Shielding Feature of Polyepoxide Composites

Influence of Li2O Incrementation on Mechanical and Gamma-Ray Shielding Characteristics of a TeO2-As2O3-B2O3 Glass System

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