Characterization of SiO2–PbO–CdO–Ga2O3 glasses for comprehensive nuclear shielding performance: Alpha, proton, gamma, neutron radiation

Borate glasses with chemical composition 55 B 2 O 3-10 ZnO-x Er 2 O 3-(35-x) Na 2 O mol.%, (where x = 0, 2 and 4 mol.%) were prepared by conventional melt-quenching. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and UV-Vis spectroscopy were used to characterize the structural and optical properties of the prepared samples. XRD analysis confirms the amorphous nature of these glasses. The density and the molar volume of the prepared glasses were determined. Optical absorption measurements reveal 11 bands corresponding to electronic transitions in Er 3+ ion from the ground state 4 I 15/2 to excited levels. Mass attenuation coefficient (MAC) values were calculated as a function of different photon energies using Phy-X database software. Other shielding parameters such as the half value layer (HVL), the tenth value layer (TVL) and the effective atomic number Zeff were extracted from the determined mass attenuation coefficient (MAC). The results show that MAC increases with the increase in Er 2 O 3 content and decreases with increasing photon energy. The results of this work indicate that the content of Er 2 O 3 is responsible for the attenuation enhancement and that the novel glass prepared in this study holds great promise for future radiation shielding applications.

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“…The mass attenuation coefficient (MAC) is related to the linear attenuation coefficient (l t ) according to Eq. 3: 37,38…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Optical Absorption and Radiation Shielding Performance of Sodium Zinc Borate-Er2O3 Glasses

Alrowaili

Taha

Brahim

et al. 2021

Journal of Elec Materi

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“…The EBF and EABF values of Hematite doped glasses were estimated for gamma energies up to 15 MeV and for penetration depth up to 40 mfp by using G-P method [31]:…”

Section: Radiation Attenuation Propertiesmentioning

confidence: 99%

Radiation resistance of novel SARS-CoV-2: A Monte Carlo investigation on characterization and determination of gamma-ray attenuation properties

Tekın

Kara

Issa

et al. 2020

Preprint

Self Cite

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In late December 2019, the new viral pneumonia outbreak was first detected in Wuhan, the largest metropolitan area in China's Hubei province. The 2019–20 coronavirus pandemic is an ongoing pandemic, caused by the severe acute respiratory syndrome-2 (SARS-CoV-2), was named as Coronavirus disease 2019 (COVID-19) by World Health Organization (WHO). It is well known that radiation can cause mutations in bacteria and viruses. Therefore, characterization of the radiation resistance and interaction properties of viruses provides the opportunity in terms of risk assessment and future aspects. In this study, 3 types of viruses (SARS-CoV-CAS Number 587886-51-9, Influenza-CAS Number 141368-69-6 and SARS-CoV-2 GlycoProtein 6VSB.) were modeled with the Monte Carlo simulation method (MCNPX version 2.6.0). The vital radiation attenuation properties such as linear attenuation coefficients, energy absorption buildup factors (EABF), exposure buildup factors (EBF), relative dose distributions (RDD) were examined using advanced simulation methods. Moreover, the spike protein of SARS-CoV-2 is modelled from the structures in the Protein Data Bank. As a result of the study, we could say that the most radiation resistance was observed in SARS-CoV when compared with Influenza and Covid-19. It could be one of the reasons for SARS-CoV’s resistance to mutation from its outbreak time. On the other hand, Covid-19 is more resistant to radiation than Influenza. Therefore it could be expected that Covid-19 would have the similar behaviors against ionizing radiation as Influenza has.

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“…The increased demand of ionizing radiation in many areas of endeavor such radiotherapy is one of the most concerning subjects in regard to use of medical radiation [1,2]. In the medical radiation facilities, technicians, doctors, and nurses are experiencing radiation exposure every day which could potentially lead to effects that is detrimental.…”

Section: Introductionmentioning

confidence: 99%

“…The evaluation of the radiation exposure of the clinical personnel is important and numerous publications have been analyzed this subject with common target the safe application of the exposure [2,3,4]. Several protection procedures are currently implemented in everyday practice, including radiation protection apparels, personalized radiation monitoring devices and exposure-decreasing operational techniques [1,3]. However, the basic protection of the medical radiation fields is the correct and complete shielding of the room which is capable of ensuring the safety of the personnel and population [5,6].…”

Section: Introductionmentioning

confidence: 99%

Photon Shielding Characterization of SiO2-PbO-CdO-TiO2 Glasses for Radiotheraphy Shielding Application

Mustapha

James

Bello

2021

AJR2P

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In this study, photon attenuation parameters of (30-x) SiO2–15PbO–10CdO-xTiO2, with x = 0, 2, 4, 6, 8 and 10% mol, were determined and their application as shielding material were discussed. The WinXCOM software was used to determine the mass attenuation coefficient of the studied glasses for the energy range (0.015-15MeV). The mass attenuation coefficient of the glass samples first decline up to 0.09 MeV and slightly increase abruptly and then declined uniformly for all the glasses to approximately zero after about 10 MeV. The effective atomic number (Zeff) was also calculated for the glass samples and were observe to raise from 0.015 to 0.02 MeV and then decreased between 0.02-5 MeV. On account of the dominance of the photoelectric effect in the low energy region, there was a sudden increase in Zeff at about 0.08 MeV close to the absorption edge of the Pb (0.088 MeV). The rapid increment was observed at 0.1–1.5 MeV by transcending typical Compton scattering interaction at intermediate energies for Zeff'’s and began to decrease in the same form again. The lower Zeff values were found in low and high energy region for all SPCT glasses. The calculated mean free path, half value layer and tenth value layer values were observe to decline as the TiO2 doping of the glasses increased which accounts for the three photon interaction mechanisms effectiveness in the variation of MFP and HVL values with energy. It can be concluded that SPCT glasses may be considered an alternative material for radiation shielding practices.

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Characterization of SiO2–PbO–CdO–Ga2O3 glasses for comprehensive nuclear shielding performance: Alpha, proton, gamma, neutron radiation

Cited by 105 publications

References 28 publications

Synthesis, Optical Absorption and Radiation Shielding Performance of Sodium Zinc Borate-Er2O3 Glasses

Synthesis, Optical Absorption and Radiation Shielding Performance of Sodium Zinc Borate-Er2O3 Glasses

Radiation resistance of novel SARS-CoV-2: A Monte Carlo investigation on characterization and determination of gamma-ray attenuation properties

Photon Shielding Characterization of SiO2-PbO-CdO-TiO2 Glasses for Radiotheraphy Shielding Application

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