scholarly journals Enhancement of Gamma-ray Shielding Properties in Cobalt-Doped Heavy Metal Borate Glasses: The Role of Lanthanum Oxide Reinforcement

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7703
Author(s):  
Ghada ALMisned ◽  
Wiam Elshami ◽  
Shams A.M. Issa ◽  
Gulfem Susoy ◽  
Hesham M.H. Zakaly ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Glass Sample ◽  
Lanthanum Oxide ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Radiation Shielding ◽  
Borate Glasses ◽  
Depth Range ◽  
Shielding Properties ◽  
Metal Borate

The direct influence of La3+ ions on the gamma-ray shielding properties of cobalt-doped heavy metal borate glasses with the chemical formula 0.3CoO-(80-x)B2O3-19.7PbO-xLa2O3: x = 0, 0.5, 1, 1.5, and 2 mol% was examined herein. Several significant radiation shielding parameters were evaluated. The glass density was increased from 3.11 to 3.36 g/cm3 with increasing La3+ ion content from 0 to 2 mol%. The S5 glass sample, which contained the highest concentration of La3+ ions (2 mol%), had the maximum linear (μ) and mass (μm) attenuation coefficients for all photon energies entering, while the S1 glass sample free of La3+ ions possessed the minimum values of μ and μm. Both the half value layer (T1/2) and tenth value layer (TVL) of all investigated glasses showed a similar trend of (T1/2, TVL)S1 > (T1/2, TVL)S2 > (T1/2, TVL)S3 > (T1/2, TVL)S4 > (T1/2, TVL)S5. Our results revealed that the S5 sample had the highest effective atomic number (Zeff) values over the whole range of gamma-ray energy. S5 had the lowest exposure (EBF) and energy absorption (EABF) build-up factor values across the whole photon energy and penetration depth range. Our findings give a strong indication of the S5 sample’s superior gamma-ray shielding characteristics due to the highest contribution of lanthanum oxide.

Photoluminescence, nonlinear optical and gamma radiation shielding properties of high concentration of Eu2O3 doped heavy metal borate glasses

Optik ◽  
2022 ◽  
Vol 251 ◽  
pp. 168433
Author(s):  
Vinod Hegde ◽  
Sudha D. Kamath ◽  
Imen Kebaili ◽  
M.I. Sayyed ◽  
K.N. Sathish ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Gamma Radiation ◽  
Nonlinear Optical ◽  
Radiation Shielding ◽  
Borate Glasses ◽  
High Concentration ◽  
Shielding Properties ◽  
Metal Borate

scholarly journals Gamma, Fast Neutron, Proton, and Alpha Shielding Properties of Borate Glasses: A Closer Look on Lead (II) Oxide and Bismuth (III) Oxide Reinforcement

2021 ◽  
Vol 11 (15) ◽  
pp. 6837
Author(s):  
Ghada ALMisned ◽  
Huseyin O. Tekin ◽  
Esra Kavaz ◽  
Ghaida Bilal ◽  
Shams A.M. Issa ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Oxide ◽  
Gamma Radiation ◽  
Fast Neutron ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Oxide Glass ◽  
Borate Glasses ◽  
Radiation Attenuation ◽  
Shielding Properties

The purpose of this research was to investigate the shielding characteristics of high-amount heavy metal oxide and Eu3+-activated borate glasses based on 10La2O3–50HMO–(40–x) B2O3–xEu2O3 (x = 0, 0.5, 1, 2, and HMO = PbO, Bi2O3). Critical gamma radiation attenuation characteristics, particularly mass attenuation coefficients of investigated heavy metal oxide glass samples, were determined using Monte Carlo simulations and the Phy-x/PSD software. Following that, we looked at the half-value layer, mean free path, effective atomic number, and build-up factors across a broad energy range (0.015–15 MeV). According to the study’s results, the addition of Eu2O3 enhanced the mass attenuation coefficient and effective atomic number, while reducing the half-value layer, mean free path, and accumulation factors. In terms of gamma radiation attenuation, the LBi50BEu glass system surpassed the LPb50BEu glass system in terms of overall shielding properties against nuclear radiation. Additionally, the heavy metal oxide glass’ efficacy as a neutron shield was determined using fast neutron removal cross-sections (ΣR). LBi50BEu2 glass was shown to be more effective in preventing the penetration of charged particle radiation.

Optical and nuclear radiation shielding properties of zinc borate glasses doped with lanthanum oxide

2020 ◽  
Vol 543 ◽  
pp. 120151 ◽  
Author(s):  
Hesham Mh Zakaly ◽  
A.S. Abouhaswa ◽  
Shams A M Issa ◽  
Mostafa Y. A Mostafa ◽  
Mariia Pyshkina ◽  
...  
Keyword(s):  
Lanthanum Oxide ◽  
Radiation Shielding ◽  
Nuclear Radiation ◽  
Zinc Borate ◽  
Borate Glasses ◽  
Shielding Properties

Radiation Shielding Properties of Bi2O3-Na2O-B2O3 of 662 keV

2016 ◽  
Vol 702 ◽  
pp. 77-82
Author(s):  
Wasu Cheewasukhanont ◽  
Kitipun Boonin ◽  
Pruittipol Limkitjaroenporn ◽  
Jakrapong Kaewkhao
Keyword(s):  
Physical Properties ◽  
Radiation Source ◽  
Glass Sample ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Sodium Borate ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Shielding Properties ◽  
Bismuth Sodium

The bismuth sodium borate glasses in formula xBi2O3:20Na2O:(80-x)B2O3 (x = 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50 mol %) have been prepared by melt-quenching technique. The glass sample at x=0 mol% show the colorless and show the stronger yellow at the higher Bi2O3 content. The glasses’s colors are corespondening with the cutoff wavelength’s results. The shielding properties were measured at 662 keV by Cs-137 radiation source. The obtained results show that the mass attenuation coefficient increased with the increasing of Bi2O3 concentration. Half Value Layer (HVL) of glasses were determined and compared with the some standard shielding materials. The optical and physical properties were also investigated.

scholarly journals Optimizing the shielding properties of strength-enhanced concrete containing marble

2020 ◽  
Vol 12 ◽  
pp. 120005
Author(s):  
Ahmed ABDEL-LATIF ◽  
Maged Kassab ◽  
M. I. Sayyed ◽  
H. O. Tekin
Keyword(s):  
Compressive Strength ◽  
Gamma Ray ◽  
Low Cost ◽  
Effective Atomic Number ◽  
Neutron Radiation ◽  
Mean Free Path ◽  
Strength Properties ◽  
Radiation Shielding ◽  
Removal Cross Section ◽  
Shielding Properties

The purpose of this study is to develop a low cost, locally produced concrete mixture with optimum marble content. The resulting mixture would have enhanced strength properties compared to the non-marble reference concrete, and improved radiation shielding properties. To accomplish these goals five concrete mixtures were prepared, containing 0, 5, 10, 15, and 20% marble waste powder as a cement replacement on the basis of weight.These samples were subjected to a compressive strength test. The shielding parameters such as mass attenuation coefficients μm, mean free path MFP, effective atomic number $Z_{eff}$ and exposure build-up factors EBF were measured, and results were compared with those obtained using the WinXcom program and MCNPX code in the photon energy range of 0.015 - 3 MeV. Moreover, the macroscopic fast neutron removal cross-section (neutron attenuation coefficient) was calculated and the results presented. The results show that the sample which contains 10% marble has the highest compressive strength and potentiallygood gamma ray and neutron radiation shielding properties.

Optical, structural and gamma ray shielding properties of dolomite doped lithium borate glasses for radiation shielding applications

2020 ◽  
Vol 539 ◽  
pp. 120049 ◽  
Author(s):  
Umit Kara ◽  
Shams A.M. Issa ◽  
N. Yildiz Yorgun ◽  
O. Kilicoglu ◽  
M. Rashad ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Radiation Shielding ◽  
Borate Glasses ◽  
Lithium Borate ◽  
Shielding Properties

scholarly journals Investigations of gamma ray and fast neutron shielding properties of tellurite glasses with different oxide compositions

2016 ◽  
Vol 94 (11) ◽  
pp. 1133-1137 ◽  
Author(s):  
M.I. Sayyed
Keyword(s):  
Photon Energy ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Fast Neutrons ◽  
Tellurite Glasses ◽  
Neutron Shielding ◽  
Shielding Properties ◽  
Mass Attenuation

In the present paper, the basic radiation parameters of tellurite glasses with different forming oxides (B2O3, BaO, K2O, V2O5, WO3, and ZnO) have been studied over a wide photon energy range from 1 keV to 100 GeV, using WinXCom program. These parameters are the mass attenuation coefficient (μ/ρ), effective atomic number (Zeff), and electron density (Ne,eff). In addition, the macroscopic effective removal cross sections (ΣR) for fast neutrons have been calculated. The dependence of different parameters on incident photon energy and chemical content has been discussed. Among the selected glass systems TeO2–WO3 and TeO2–B2O3 showed superior shielding properties for gamma-ray and neutrons, respectively. It is shown that the selected glass systems have higher values of the mass attenuation coefficients (μ/ρ) than concretes and 0.7SiO2:0.3BaO glass. These results indicate that tellurite glasses can be used as radiation shielding materials.

scholarly journals Newly Developed Vanadium-Based Glasses and Their Potential for Nuclear Radiation Shielding Aims: A Monte Carlo Study on Gamma Ray Attenuation Parameters

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3897
Author(s):  
Huseyin Ozan Tekin ◽  
Ghaida Bilal ◽  
Hesham M. H. Zakaly ◽  
Gokhan Kilic ◽  
Shams A. M. Issa ◽  
...  
Keyword(s):  
Glass Sample ◽  
Gamma Ray ◽  
Effective Conductivity ◽  
Effective Atomic Number ◽  
Mean Free Path ◽  
Radiation Shielding ◽  
Nuclear Radiation ◽  
Buildup Factor ◽  
Doped Glass

This study aimed to investigate different types of glasses based on the 46V2O5-46P2O5-(8-x) B2O3-xCuO system in terms of their nuclear radiation shielding properties. Accordingly, five different CuO-doped vanadate glasses were investigated extensively to determine the necessary gamma shielding parameters along with effective conductivity at 300,000 and buildup factors. Phy-x PSD software was used for determination of these vital parameters. Furthermore, these parameters, such as half value layer, tenth value layer, and mean free path were investigated in a broad energy range between 0.015 and 15 MeV. The results revealed that the amount of CuO reinforced in each sample plays an essential role in determination of the shielding abilities of the samples. The sample with the highest CuO content had the highest linear attenuation coefficient and mass attenuation coefficient values. Additionally, the lowest mean free path, half value layer, and tenth value layer values were recorded for glass sample VPCu8. There was an inverse relation between the effective conductivity and effective atomic number and photon energy; that is, as energy increases, the effective conductivity and effective atomic number decreased rapidly, especially in the regions of low energy. Glass sample VPCu8 reported the highest values for both parameters. Moreover, glass sample VPCu8 had the lowest exposure buildup factor and energy absorption buildup factor values. Our findings showed that CuO-reinforced vanadate glass composition, namely 46V2O5-46P2O5-8CuO, with a glass density of 2.9235 g/cm3, was reported to have superior gamma ray attenuation properties. These results would be helpful for scientists in determining the most appropriate additive rare earth type, as well as the most appropriate glass composition, to offer shielding characteristics similar to those described above, taking into consideration the criteria for usage and the needs of the community. The results of this research will be useful to the scientific community in evaluating the prospective characteristics of CuO-doped glass systems and related glass compositions. CuO-doped glass systems and associated glass compositions have a wide range of properties.

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