Effect of Bi2O3 in borate-tellurite-silicate glass system for development of gamma-rays shielding materials

Issa, Shams A.M.; Mostafa, A.M.A.

doi:10.1016/j.jallcom.2016.10.207

Cited by 71 publications

(21 citation statements)

References 19 publications

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“…The fundamental quantities describing radiation attenuation through the materials are mean free path (MFP), effective atomic number (Zeff), electron density (Nel), buildup factors for photons, a removal cross-section for neutron and projected ranges for protons and heavy ions. For the detailed knowledge on calculations of the different shielding parameters, we may refer to our recent studies [1, 3, 5, 8, 28, 29, 30, 31, 32, 33, 34, 35].…”

Section: Methodsmentioning

confidence: 99%

Comparison between MCNP5, Geant4 and experimental data for gamma rays attenuation of PbO–BaO–B2O3 glasses

Almatari

Issa

Dong

et al. 2019

Heliyon

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Monte Carlo simulations, MCNP5 and Geant4 codes were developed to investigate radiation shielding properties of xPbO–(50-x) BaO–50B2O3 (where 5 ≤ x ≤ 45 mol%) consider to be glass systems. The mass attenuation coefficients were evaluated for different PbO concentration in the glass samples for varies photon energies of 0.356, 0.662, 1.173 and 1.332 MeV. The obtained mass attenuation coefficient values used to calculate half-value layer, effective atomic number, and electron density. The simulation parameters were compared with experimental data. Results show that the simulation results of mass attenuation coefficients for all PbO concentrations were generally in good agreement with experimental results, however, mass attenuation coefficient values calculated using Geant4 were slightly lower than MCNP5 and experimental data on the low energy of 0.356 MeV. The results obtained from MCNP5 and Geant4 codes might be able to assessment mass attenuation for different glass systems. Furthermore, gamma ray, fast neutron and charged particle interaction for the glass systems were studied using buildup factors, fast neutron removal cross sections and ranges respectively.

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Section: Methodsmentioning

confidence: 99%

Comparison between MCNP5, Geant4 and experimental data for gamma rays attenuation of PbO–BaO–B2O3 glasses

Almatari

Issa

Dong

et al. 2019

Heliyon

Self Cite

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“…The first group includes the com pos ite ma te ri als in which MAC decreases sharply with the in crease of en ergy (group A). This group in cludes PbO-BaO -B 2 O 3 glass sys tems [15], gad o lin ium-based ox ide and oxyfluoride glass sys tems [16], and bo rate-tellurite-sil i cate glass sys tems [17]. The sec ond group in cludes the mix ture and polymer ma te ri als in which MAC de creases steadily with the in crease of en ergy (group B).…”

Section: Ma Te Ri Alsmentioning

confidence: 99%

“…Re cent works on ra di a tion shield ing found new ma te ri als for re duc ing ra di a tion haz ards. These works fo cus on in ves ti gat ing the at ten u ation prop er ties of var i ous types of com pos ite ma te ri als such as glass ma te rial groups, in clud ing PbO-BaO-B 2 O 3 glass sys tems [15], gad o lin ium-based ox ide and oxyfluoride glass sys tems [16], bo rate-tellurite-sil i cate glass sys tems [17]; the mix ture ma te rial group, in clud ing Port land ce ment [18], ce ment and con crete [19], gran ite [20], and the poly mer ma te rial group, in clud ing Kapton and polymethyl methacrylate (PMMA) [21]. Pre vi ous works have ex am ined the shield ing prop er ties of compos ite ma te ri als for only cer tain en er gies, there fore study ing the change of shield ing prop er ties in a wide range of gamma-ray en ergy is very nec es sary.…”

Section: Introductionmentioning

confidence: 99%

A mathematical function for describing the dependence of the mass attenuation coefficient versus energy for composite materials in an energy range of 100 keV to 2 MeV

Duj

et al. 2019

NUCL TECH RAD PROT

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This work pro poses a math e mat i cal func tion for de scrib ing the de pend ence of mass at ten u ation co ef fi cients vs. en ergy for com pos ite ma te ri als in the range of 100 keV to 2 MeV. The obtained re sults show that the pro posed func tion is ca pa ble of ac cu rately de scrib ing the data with a co ef fi cient of de ter mi na tion of ap prox i mately 1 for all in ves ti gated ma te ri als. Us ing the pro posed math e mat i cal func tion, the mass at ten u a tion co ef fi cients were in ter po lated and com pared with the re sults from the Monte Carlo sim u la tion. The re sults show good agreement when the sim u lated to in ter po lated mass at ten u a tion co ef fi cient ra tios are in the range from 0.95 to 1.05. More over, the val ues of in ter po lated mass at ten u a tion co ef fi cients have also been com pared with the ex per i men tal data in the pre vi ous works which in di cates that most of these ra tios range from 0.9 to 1.1.

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“…This has also raised concern over radiation exposure and protection. [12][13][14][15] The presence of oxides of low-Z elements like beryllium, lithium, and boron in glasses helps to slow down fast neutrons and capture slower neutrons. However, lead is heavy, expensive, and toxic in nature, and it is ineffective in stopping neutrons.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11] In attempts to replace toxic lead and lead oxide glasses, research on glasses doped with nontoxic high-impedance (high-Z) metal oxides have gained momentum in recent years. [12][13][14][15] The presence of oxides of low-Z elements like beryllium, lithium, and boron in glasses helps to slow down fast neutrons and capture slower neutrons. 16,17 Now the focus has shifted to lightweight, cost-effective, and optically transparent polymer composites, which can take any shape, as radiation shields.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)–bismuth oxide composites for X‐ray and γ‐ray shielding applications

Muthamma

Bubbly

Gudennavar

et al. 2019

J of Applied Polymer Sci

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Polymer composites, which are light in weight, cost effective, and less toxic, have potential applications in X-ray and γ-ray shielding and protection. In this work, we have explored the efficacy of poly(vinyl alcohol)-bismuth oxide composites as radiation shielding materials. Poly(vinyl alcohol) composites with different wt % (0-50) of bismuth were prepared by a simple solution casting technique. Structural and thermal characterization of these samples was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). TGA revealed the enhanced thermal stability of these composites. AC conductivity measurements and optical spectroscopy were used to analyze their electrical behavior. The composites showed low conductivity, and the energy gap obtained also showed their tendency to be insulators. The radiation attenuation properties were investigated using X-ray (5.895 and 6.490 keV) and γ-ray (59.54 and 662 keV) transmission measurements. The shielding efficiency of the composites increased with filler wt %. The 40 wt % composites exhibited mass attenuation coefficients of 122.68 and 93.02 cm 2 /g at photon energies of 5.895 and 6.490 keV, respectively, while the 50 wt % composites showed 1.57 and 0.092 cm 2 /g at photon energies of 59.54 and 662 keV, respectively. The effective atomic number quantifies the probability of interaction of radiation with matter. The effective atomic number of the composites calculated by the direct method was in good agreement with the theoretical value obtained from Auto-Zeff software.

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Effect of Bi2O3 in borate-tellurite-silicate glass system for development of gamma-rays shielding materials

Cited by 71 publications

References 19 publications

Comparison between MCNP5, Geant4 and experimental data for gamma rays attenuation of PbO–BaO–B2O3 glasses

Comparison between MCNP5, Geant4 and experimental data for gamma rays attenuation of PbO–BaO–B2O3 glasses

A mathematical function for describing the dependence of the mass attenuation coefficient versus energy for composite materials in an energy range of 100 keV to 2 MeV

Poly(vinyl alcohol)–bismuth oxide composites for X‐ray and γ‐ray shielding applications

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