Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

Akman, F.; Ağar, O.; Kaçal, M.R.; Sayyed, M.I.

doi:10.1007/s41365-019-0631-1

Cited by 26 publications

(7 citation statements)

References 36 publications

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“…The results were compared against the experimental findings and gave very good agreement. Tables V-VII present the simulation results of Fe and Pb shielding using Py-MLUBF [32][33], Phy-X and WinXCOM software. The combination of the two shielding materials, Pb and Fe, is shown in Tables VIII and IX.…”

Section: Resultsmentioning

confidence: 99%

“…Figures 3 and 4 show the relation between HVL and MAC vs Energy by using Py-MLUBF for Fe and Pb calculated by Py-MLUBF for Cs-137. Figures 8 and 9 show the relation between the gamma ray shielding factor for Fe and Pb calculated by Py-MLUBF for energies of 1173 and 1333KeV, respectively for the Co-60 source [33]. Metals are commonly used in the design of radiation protection systems.…”

Section: Resultsmentioning

confidence: 99%

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Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources

Eisa

Ali

Abuualreish

2023

Eng. Technol. Appl. Sci. Res.

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This article presents data collected by measurements of lead (Pb) and iron (Fe) and their combination as heavy shielding materials. Measurements were performed using gamma photon energies of 662, 1173, and 1332keV for the Cs-137 and Co-60 sources. The theoretical data part was calculated using WinXCom, Phy-X, and Py-MLUBF software packages. Tables and graphs of the photon Mass Attenuation Coefficient (MAC), Linear Attenuation Coefficient (LAC), Half Value Layer (HVL), Tenth Value Layer (TVL) and Mean Free Path (MFP) are presented for both heavy metals and their combination to study the shielding properties experimentally and theoretically. The results will contribute to the ongoing research as a database for future use.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources

Eisa

Ali

Abuualreish

2023

Eng. Technol. Appl. Sci. Res.

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“…Based on the Σ results, the best fast neutron shield among the glasses is BSLB20. A comparison of the Σ of water, OC [45] and recently studied glasses (80TeO2.20BaO (TB), 80TeO2.20ZnO (TZ), TVB25 and TVM60) [25,[46][47][48] and BSLB20 is depicted in Figure 6. This shows that the value of Σ for BSLB20 higher than these others and a preferred fast neutron shield compared with these materials.…”

Section: Fast Neutron Macroscopic Removal Cross-section ( )mentioning

confidence: 99%

A comprehensive study on optical features, gamma photon buildup factors and neutron shielding capability of B2O3-SB2O3-LI2O-BI2O3 glasses

Alsaif¹,

Abdelghany²,

Rammah³

et al. 2022

Bull. Chem. Soc. Eth.

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ABSTRACT. Linear, nonlinear optical properties, photon buildup factors, and neutron shielding capability of glasses with chemical composition (65-x)B2O3-10Sb2O3-25Li2O-xBi2O3, where x = 0 (BSLB0) – 20 (BSLB20) mol% with steps of 4 mol% were examined. Molar refractivity (Rmolar) and molar polarizability (αmolar) were increased as Bi2O3 content mol% increase in the examined BSLB-glasses. The values of metallization criterion (Mcriterion) confirmed that the BSLB-glasses were non-metallic materials. The static (εstatic) and optical (εoptical) dielectric constants having the same trend of the refractive index (noptical). Values of optical electronegativity (χ*) were reduced from 0.825 for BSLB0 (Bi2O3 = 0 mol%) glasses to 0.758 for BSLB20 (Bi2O3 = 20 mol%) glasses. The linear electric/dielectric susceptibility (χ(1)) increased from 0.370 to 0.397. The nonlinear optical susceptibility (χ3) and nonlinear refractive index n2optical were enhanced by increasing Bi2O3 content in the BSLB-glasses. The BSLB20 glasses presented the least exposure and energy absorption build-up factors (EBF and EABF) at all considered thickness. BSLB20 sample achieved the best fast neutron removal cross section ( ) shield among all glasses. The total stopping powers (TSP) follows the trend (TSP)BSLB0 < (TSP)BSLB4 < (TSP)BSLB8 < (TSP)BSLB12 < (TSP)BSLB16 < (TSP)BSLB20. The electron absorbing and hence shielding capacity of the BSLB-glasses improves as their Bi2O3 content increase. KEY WORDS: Antimony lithium-borate glasses, Optical properties, Buildup factors, Neutron shielding Bull. Chem. Soc. Ethiop. 2022, 36(4), 949-962. DOI: https://dx.doi.org/10.4314/bcse.v36i4.19

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“…Rather than using a single process of directly mixing the shielding material and polymer to produce a sheet or plate, this study aims to construct a pellet—that is, a shielding material—through compounding, considering various barrier film shapes [ 14 , 15 ]. The manufactured product can be achieved by evenly dispersing the shielding material within the pellet to maintain the same shielding performance.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Shielding Material Dispersion Characteristics and Shielding Efficiency for Manufacturing Medical X-ray Shielding Barriers

Kim¹

2022

Materials

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During medical diagnoses, X-ray shielding barriers are used to protect against direct and indirect X-rays. Currently, lead is used as the primary material for shielding barriers; however, the demand for eco-friendly shielding barriers has been increasing. Conventionally, shielding barriers are manufactured using a mechanically bonded combination of lead and aluminum; however, in this study, a plastic-based injection-molded product was developed using tungsten as an eco-friendly alternative to lead. A new process technology was required for mixing tungsten—which can be difficult to process—with a polymer. Consequently, the mixing conditions within the injection molding machine and the related compounding technology factors were analyzed. The process technology considered the pre-mixing method using powdery polymer, particle dispersion method, number of screw rotations, and amount of filler input. The product’s shielding performance was then analyzed. The tungsten content of the 2-mm thick barrier manufactured using the proposed method was 90 wt%, and the lead equivalent was 0.321 mmPb. To increase the effectiveness of injection molding in the manufacturing process, specific hourly compounding conditions were proposed. Consequently, the process technology method developed in this study can be considered suitable for manufacturing various shielding barriers.

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Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

Cited by 26 publications

References 36 publications

Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources

Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources

A comprehensive study on optical features, gamma photon buildup factors and neutron shielding capability of B2O3-SB2O3-LI2O-BI2O3 glasses

Comparison of Shielding Material Dispersion Characteristics and Shielding Efficiency for Manufacturing Medical X-ray Shielding Barriers

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