X-ray photons attenuation characteristics for two tellurite based glass systems at dental diagnostic energies

Al‒Hadeethi, Yas; Sayyed, M.I.; Mohammed, Hiba; Rimondini, Lia

doi:10.1016/j.ceramint.2019.08.258

Cited by 129 publications

(25 citation statements)

References 28 publications

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“…>1 MeV, we gain the µ m around 0.02 cm 2 increase is associateed with the higher density value of B 2 O 3 (2.46 g/cm 3 ) than that of Li 2 O (2.01 g/cm 3 ). The higher the glass density the better the radiation shielding competencies were confirmed by various studies in the literature [39,40]. Since an increasing trend is required for improving radiation shielding competencies we can report that B 2 O 3 can provide this enhancement in an efficient way.…”

Section: Radiation Shielding Featuresmentioning

confidence: 54%

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

Kurtuluş¹,

Kavas²

2021

Journal of Boron

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In this study, a preliminary theoretical investigation on lithium-zinc-calcium-silicate (LZCS) glass with a composition of (15-x)Li 2 O-10ZnO-10CaO-65SiO 2 -xB 2 O 3 where x: 0, 3, 6, 9, 12, and 15 mol% was performed to understand the effect of B 2 O 3 on physical, optical, and radiation shielding properties. For this purpose, the L15B0 to L0B15 glass series was designed for evaluating glass density (ρ glass ), refractive index (n), mass attenuation coefficient (µ m ), and half-value layer (Δ 0.5 ) parameters. The theoretical calculations showed that the increasing amount of B 2 O 3 increased the overall ρ glass from 2.9195 to 2.9865 g/cm 3 . Further, the addition of B 2 O 3 in substitution for Li 2 O enhanced the n parameter from 1.6882 to 1.7626. Additionally, BatchMaker software aided to investigate viscosity behavior with the increasing temperature. We found out that the melting point of LZCS glass series ascends with the addition of B 2 O 3 , namely from 1309 to 1624 ºC. On the other hand, the newly developed Phy-X/PSD software computations paved the way for ascertaining µ m and Δ 0.5 . According to the µ m computations, one can clearly state that an increasing trend is observable against the increasing photon energy, but the L0B15 possessed an enhanced shielding ability than that of the remaining at all photon energies. Moreover, we found out that the Δ 0.5 increased with respect to the ascending photon energies, however, the Δ 0.5 was effectively improved with the addition of B 2 O 3 in the order of L0B15

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Section: Radiation Shielding Featuresmentioning

confidence: 54%

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

Kurtuluş¹,

Kavas²

2021

Journal of Boron

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“…The MFP is defined as an average distance λ (in cm) traveled by the photons before being absorbed in a particular material. It has been calculated as 31 – 33 , MFP = μ −1 , where μ (cm −1 ) denotes a linear attenuation coefficient of the medium. When a narrow beam of radiation of initial intensity I 0 moves through a specific medium of thickness t, the number of photons (I) that can transmit the medium is given by the Lambert–Beer law 34 – 36 , I = I 0 e −μt .…”

Section: Theoretical Approach On Attenuating γ-Raysmentioning

confidence: 99%

Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

Kumar

Jain

Sayyed

et al. 2021

Sci Rep

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Nuclear radiation shielding capabilities for a glass series 20Bi2O3 − xPbO − (80 − 2x)B2O3 − xGeO2 (where x = 5, 10, 20, and 30 mol%) have been investigated using the Phy-X/PSD software and Monte Carlo N-Particle transport code. The mass attenuation coefficients (μm) of selected samples have been estimated through XCOM dependent Phy-X/PSD program and MCNP-5 code in the photon-energy range 0.015–15 MeV. So obtained μm values are used to calculate other γ-ray shielding parameters such as half-value layer (HVL), mean-free-path (MFP), etc. The calculated μm values were found to be 71.20 cm2/g, 76.03 cm2/g, 84.24 cm2/g, and 90.94 cm2/g for four glasses S1 to S4, respectively. The effective atomic number (Zeff)values vary between 69.87 and 17.11 for S1 or 75.66 and 29.11 for S4 over 0.05–15 MeV of photon-energy. Sample S4, which has a larger PbO/GeO2 of 30 mol% in the bismuth-borate glass, possesses the lowest MFP and HVL, providing higher radiation protection efficiency compared to all other combinations. It shows outperformance while compared the calculated parameters (HVL and MFP) with the commercial shielding glasses, different alloys, polymers, standard shielding concretes, and ceramics. Geometric Progression (G-P) was applied for evaluating the energy absorption and exposure buildup factors at energies 0.015–15 MeV with penetration depths up to 40 mfp. The buildup factors showed dependence on the MFP and photon-energy as well. The studied samples' neutron shielding behavior was also evaluated by calculating the fast neutron removal cross-section (ΣR), i.e. found to be 0.139 cm−1 for S1, 0.133 cm−1 for S2, 0.128 cm−1 for S3, and 0.12 cm−1 for S4. The results reveal a great potential for using a glass composite sample S4 in radiation protection applications.

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“…Due to the toxicity, high cost, and heavy weight of lead and lead glass materials several studies were conducted to develop alternative materials that replace lead such as tellurite-base glasses, phosphate-based materials, metal alloy, polymers [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. These studies showed a good shielding performance in terms of high shielding efficiency without loss of transparency, good physical properties, thermal stability and good optical properties.…”

Section: Introductionmentioning

confidence: 99%

“…The shielding effectiveness have been studies in terms of the physical properties, radiation shielding parameters, LAC, MAC, HVL, MFP, Zeff and Neff. Al-Hadeethi et.al [24] have studied the x-ray photons attenuation characteristics for two glass-based systems (Bi 2 O 3 -B 2 O 3 -TeO2 -TiO 3 and PbO-ZnO-TeO 2 -B 2 O 3 ) at photon energies ranging from 30 to 80kVp. Their results showed that the increase of Tellurium dioxide (TeO 2 ) concentration increases the attenuation coefficients of the glasses system with a decrease in the half-value layer especially at photon energy range between70 and 80keV.…”

Section: Introductionmentioning

confidence: 99%

An Evaluation of the Shielding Effectiveness of Tellurite Glass with Composition 85TeO2-5Nb2O5-5ZnO-5Ag2O for Diagnostic Radiology Application

Hussein

2021

CJAST

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The metal oxide glasses have attracted huge interest as promising types of shielding materials to replace the toxic, heavy and costly conventional shielding materials. In this work, the physical and the shielding effectiveness of Tellurite glass sample (S1) contain host metal oxides (85TeO2-5Nb2O5-5ZnO-5Ag2O) were evaluatedatphoton energies range between 15keVand1MeV.The shielding parameters of the proposed glass system such as linear attenuation coefficients, HVL, MFP, Zeff, and Neffwere evaluated. The proposed samples showed a superior performance at the diagnostic energy range between 40 and 90 keV and a comparable shielding effectiveness above 90keV when compared with other commercial standard shielding materials.

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X-ray photons attenuation characteristics for two tellurite based glass systems at dental diagnostic energies

Cited by 129 publications

References 28 publications

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

Tailoring bismuth borate glasses by incorporating PbO/GeO2 for protection against nuclear radiation

An Evaluation of the Shielding Effectiveness of Tellurite Glass with Composition 85TeO2-5Nb2O5-5ZnO-5Ag2O for Diagnostic Radiology Application

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