The heavy metal oxide glasses within the WO 3 -MoO 3 -TeO 2  system to investigate the shielding properties of radiation applications

Ersundu, Ali Erçin; Büyükyıldız, Mehmet; Ersundu, Miray Çelikbilek; Şakar, Erdem; Kurudirek, Murat

doi:10.1016/j.pnucene.2017.10.008

Cited by 190 publications

(29 citation statements)

References 21 publications

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“…Glasses could be used to attenuate potentially harmful radiations like gamma-rays, thereby using them as transparent radiation shields. Moreover, glass manufacturing is cost-effective, easily moldable, 100% recyclable capability, and glasses show high homogeneity and they are structurally, thermally, and mechanically stable depending upon the compositions, resulting in an attenuation efficacy [6][7][8]. Though, as radiation shields, lead (Pb)-based glasses or materials are being used at diagnostic imaging facilities, mainly 'Pb' element toxicity to the surrounding environment, working personnel, and cost restrict its usage.…”

Section: Introductionmentioning

confidence: 99%

“…For c-rays attenuation characteristic study for any material, mass attenuation coefficient (l/q) is an important physical parameter. Additionally, halfvalue layer (HVL), tenth-value layer (TVL), effective electron density (N eff ), effective atomic number (Z eff ), mean free path (MFP), exposure buildup factor (EBF), and energy absorption buildup factor (EABF) parameters are vital in understanding gamma radiation interaction through photoelectric absorption, Compton scattering, Rayleigh scattering, and pair production mechanisms with shielding material [6][7][8][9]. For the last few years, numerous research groups have been reported on gamma-ray shielding features of different glass systems using theoretical approaches and/or experimental methods.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

et al. 2020

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Gamma-rays and fast and thermal neutron attenuation features of (Bi 2 O 3 ) x -(TeO 2 ) (100-x) (where x = 5, 8, 10, 12, and 15 mol%) and [(TeO 2 ) 0.7 -(B 2 O 3 ) 0.3 ] (1-x) -(Bi 2 O 3 ) x (where x = 0.05, 0.10, 0,15, 0.20, 0.25, and 0.3 mol%) glass systems have been explored and compared. For all samples, mass attenuation coefficients (l/ q) are estimated within 0.015-15 MeV photon energy range by MCNP5 simulation code and correlated with WinXCom results, which showed a satisfactory agreement between computed l/q values by these both methods. Additionally, effective atomic number (Z eff ), effective electron density (N eff ), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), total atomic cross-section (r a ), and total electronic cross-section (r e ) are calculated by utilizing l/q values. The l/q, Z eff , and N eff are energy dependent and have higher values at the lowest energy and smaller values at higher energies. Moreover, using the G-P fitting method as a function of penetration depth (up to 40 mfp) and incident photon energy (0.015-15 MeV range), exposure buildup factors (EBFs)

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

et al. 2020

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“…Previously, many opaque materials such as concrete were suggested as shielding materials for gamma radiation, however, there are several risks and limitations associated with their use [1,2]. Currently, glasses have the largest interest as promising radiation shielding materials to be used in the windows and doors in medical diagnostic labs, x-ray rooms and CT scans, scintillators, radiation therapy chambers, and in space technology [3,4]. This triggered an international interest to study many glasses doping with heavy metal oxide (HMO) to serve for various gamma ray shielding applications.…”

Section: Introductionmentioning

confidence: 99%

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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“…Because of their motivating characteristics such as excellent transparency, capability of fabrication, low fabrication cost, and good thermal and structural features. Along with that, the radiation shielding parameters of glass systems can be altered by using different contents of oxides in the glass formula [11][12][13][14]. Tungsten oxide were found to increase shielding performance of oxide glasses against gamma irradiation [15,16].…”

Section: Introductionmentioning

confidence: 99%

The tungsten oxide within phosphate glasses to investigate the structural, optical, and shielding properties variations

Sadeq

Elbashir

Almuqrin

et al. 2021

J Mater Sci: Mater Electron

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We prepared a series of sodium phosphate glasses by changing WO3/P2O5 content and investigated structure optical and radiation shielding features as a function of glass composition. The average density (⍴ ) and was found to increase gradually from 2.49 to 3.07 g/cm 3 while the average molar volume values reduced from 47.37 to 44.28 cm 3 /mol with WO3 addition. Also, the average field strength was also computed and found to increase with increasing WO3. The study of optical absorption spectra reveals that, the absorption peaks in the visible region become higher compared to the peaks In the UV region. This observation is accompanied with a color transformation of glasses from light to dark blue color, with more WO3 adding. The existence of pentavalent tungsten state (W 5+ ) is identified by this blue color. with WO3 addition an absorption band at around at 350-390 nm is appeared. Moreover, this band is overlapped with Urbach edge, which regularly produces an artificial edge-like feature at ~400 nm. A detailed deconvolution protocol is required for an appropriate understanding of these spectra and unravelling the hidden Urbach edge. Our analysis shows that, with increasing WO3/P2O5 content, the optical band gap decreases. This behavior can be elucidated in terms of lower band gap of W (2.7 eV) than that of P2O5 (8.5 eV) and the high polarizing power W. Further, the radiation shielding parameters were investigated for the prepared glasses. WO3 addition improves these shielding parameters against radiation. Where, upon the increase of WO3 concentration, the LAC of glass material increases which leads to a decrease in HVL value. Then it is deducible that the amount of WO3 in this glass sample has an important impact on the shielding capability at lower energy values and has a slight impact at higher energy values.

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The heavy metal oxide glasses within the WO 3 -MoO 3 -TeO 2 system to investigate the shielding properties of radiation applications

Cited by 190 publications

References 21 publications

Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

MoO₃-TeO₂ glass system for gamma ray shielding applications

The tungsten oxide within phosphate glasses to investigate the structural, optical, and shielding properties variations

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The heavy metal oxide glasses within the WO 3 -MoO 3 -TeO 2 system to investigate the shielding properties of radiation applications

Cited by 190 publications

References 21 publications

Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

Estimation of gamma-rays, and fast and the thermal neutrons attenuation characteristics for bismuth tellurite and bismuth boro-tellurite glass systems

MoO3-TeO2 glass system for gamma ray shielding applications

The tungsten oxide within phosphate glasses to investigate the structural, optical, and shielding properties variations

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Product

Resources

About

MoO₃-TeO₂ glass system for gamma ray shielding applications