Comparative shielding properties of some tellurite glasses: Part 2

El-Mallawany, R.; Sayyed, M.I.; Dong, Mengge

doi:10.1016/j.jnoncrysol.2017.08.011

Cited by 118 publications

(27 citation statements)

References 32 publications

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“…We note that the graphs of Z eff values for all samples have discontinuities due to photoelectric absorption near the K-, L-, and M-absorption edges of some elements at low energies (see Table 4). These results are in good agreement with the results for various glass systems obtained by El-Mallawany et al [34], Kaur et al [35], and Chanthima and Kaewkhao [36] and with the results for several smart polymer materials reported by Sayyed [37].…”

Section: Resultssupporting

confidence: 92%

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

et al. 2019

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In this study, the gamma radiation shielding features of several environmentally friendly materials were investigated. For this purpose, several attenuation parameters, such as the mass attenuation coefficient (l=q), radiation protection efficiency (RPE), and effective atomic number (Z eff) were determined experimentally and compared with numerical data obtained using WinXCom software. In the measurements, the emitted gamma photons were counted by a gamma spectrometer equipped with an HPGe detector using 22 Na, 54 Mn, 57 Co, 60 Co, 133 Ba, and 137 Cs radioactive point sources in the energy region of 81-1333 keV. The obtained results indicate that the l=q and RPE values of the samples decrease with an increase in photon energy. The experimental values are in good agreement with those obtained using WinXCom software. The RPE and Z eff results show that among the studied materials, the NaY 0.77 Yb 0.20 Er 0.03 F 4 sample has the best gamma radiation shielding effectiveness.

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Section: Resultssupporting

confidence: 92%

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

et al. 2019

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“…These results (dependent of µ/ρ on the photon energy) are corresponding with the recently published literature on different materials like rocks [44], glasses [46][47][48][49][50], bricks [51], and amino acids [52]. Comparison with other glasses; like tellurite glasses [53][54][55] could be suggested.…”

Section: Reflection Loss (R L ) and Optical Transmission (T)supporting

confidence: 87%

Optical, magnetic characterization, and gamma-ray interactions for borate glasses using XCOM program

et al. 2019

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In the present study, the optical characterization of borate glasses with composition 35Li 2 O − 10ZnO − 55B 2 O 3 − xMnO 2 : x = 0, 0.5, 1.0, 1.5, and 2.0 wt% has been investigated. The absorption spectra measurements within the wavelength domain 200-1000 nm have been carried out. The optical energy gap of the investigated samples using the absorption spectrum fitting (ASF) model has been calculated. The molar refraction, molar polarizability, reflection loss, optical transmission for the samples were estimated. The metallization criterion, dielectric constant, refractive index, and energy band metallization criterion for the studied glasses were estimated. Magnetic property measurements for all glass samples were carried out at 300 K. Additionally, the prospects of gamma-ray interactions with the investigated glasses have been achieved through studying the total mass attenuation, coherent, Compton, photoelectric, and pair production interactions at photon energy in the range of 0.356-1.330 MeV. Results reveal that the optical and magnetic properties of the investigated glasses change with changing the MnO 2 concentration. Studied glasses can be used as a candidate for optical fiber and optical devices application. In the other hand, at lower gamma photon energy range, the photoelectric absorption dominates with the glasses, while as the energy increases, the probability of Compton scattering and pair production become the most dominate interactions.

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“…The Z eff values of the studied glasses were compared with different promising tellurite glasses in table 2. It is clear that the Z eff values of the studied glasses are higher than those of 90TeO 2 -10V 2 O 5 [29] and 60TeO 2 -10B 2 O 3 -10MoO 3 -10ZnO-10Na 2 O [30]. On the other hand, the Z eff values of the studied glasses are lower than those of 90TeO 2 -10Bi 2 O 3 [26], and comparable with those of 80TeO 2 -20BaO [27].…”

Section: Resultsmentioning

confidence: 54%

“…By the incresing of the photon energy the MFP values increase very fast, so in the shielding applications it is better to increase the thickness of the glass because the gamma-ray can penetrate the glass more deeply. Moreover, figure 6 reveals that the present glasses have better shelding properties than those of Ti2V48Te50 glass [29], lower than those of Pb20Te80 [7] glass and comparable with those of Mn20Te80 [34] and Mo20B10Te70 glasses [19].…”

Section: Resultsmentioning

confidence: 62%

MoO₃-TeO₂ glass system for gamma ray shielding applications

Al-Buriahi

Arslan

Tekın

et al. 2020

Mater. Res. Express

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This paper examines the gamma-ray shielding features of some selected tellurite-based glasses in the form of xMoO 3 (100−x)TeO 2 (20 x 50 mol%). Mass attenuation coefficients (μ m ) of these glasses have been calculated using Geant4 toolkit and XCOM program for photon energy range of 1 keV-1000 MeV. The correlation factor (R 2 ) between these two methods was found to be almost one. Shielding effectiveness for these glasses has been estimated by computing half value layer (HVL), effective atomic number (Z eff ), and mean free paths (MFP). It was noticed that the heavy metal oxide of TeO 2 plays an important role in improving the shielding effectiveness of the glasses. The Mo20Te80 glass has shown the promising properties to serve for gamma ray protection applications as compared with many conventional concretes and other newly developed glasses.

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Comparative shielding properties of some tellurite glasses: Part 2

Cited by 118 publications

References 32 publications

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

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

Optical, magnetic characterization, and gamma-ray interactions for borate glasses using XCOM program

MoO₃-TeO₂ glass system for gamma ray shielding applications

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Comparative shielding properties of some tellurite glasses: Part 2

Cited by 118 publications

References 32 publications

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

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

Optical, magnetic characterization, and gamma-ray interactions for borate glasses using XCOM program

MoO3-TeO2 glass system for gamma ray shielding applications

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Product

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MoO₃-TeO₂ glass system for gamma ray shielding applications