An extensive investigation on gamma-ray and neutron attenuation parameters of cobalt oxide and nickel oxide substituted bioactive glasses

Tekın, H.O.; Kavaz, Esra; Altunsoy, Elif Ebru; Kılıcoglu, O.; Ağar, O.; Ergüzel, Türker Tekin; Sayyed, M.I.

doi:10.1016/j.ceramint.2019.02.036

Cited by 90 publications

(14 citation statements)

References 32 publications

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“…Finally, all these parameters obtained in the previous steps are utilized in order to calculate EBF values. Detailed information about calculations can be accessed from previous studies [40][41][42][43][44].…”

Section: = 1 (13)mentioning

confidence: 99%

Lithium-boro-tellurite glasses with ZnO additive: Exposure Buildup Factors (EBF) and Nuclear Shielding Properties

Doğan

2020

European Journal of Science and Technology

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The effect of ZnO increment on lithium boro tellurite (Li2O-B2O3-P2O5-ZnO) glass structure was investigated with the study of gamma and neutron attenuation properties. The gamma-ray shielding effectiveness of materials can be understood with the help of several different shielding parameters that play an important role in understanding the shielding capacities of the material. The mass attenuation coefficients (µ/) for Li2O-B2O3-P2O5-ZnO glass samples were calculated by using the XCOM program based on the DOS-based compilation XCOM. To compare the theoretical and simulation results of the mass attenuation coefficients of the samples, MCNPX (Monte Carlo N-Particle) simulation code was handled with the XCOM program in the energy range of 0.02 MeV-20 MeV. In addition, effective atomic numbers (Zeff), electron densities (Nel), effective removal cross-section (ƩR) and the transmission factor (TF) for sample glasses, have also been examined in that energy range. In addition to these parameters the Half-value layer (HVL), tenth value layer (TVL) and also mean free path (MFP) values were calculated by using the µ/. Moreover, exposure buildup factors (EBF) was calculated at 0.015-15 MeV up to 15 mfp by utilizing the G-P fitting approach. The glass having 20 mol% ZnO was found to has better gammaray shielding properties among the investigated glass samples. As a result, sample ZL5 among studied glasses has marvelous attenuation effectiveness whereas sample ZL1 has the best neutron radiation shielding performance. The outcomes of the present extended research can provide significant information for the comparison of new generation shielding materials with conventional shielding materials used in ionizing radiation facilities.

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Section: = 1 (13)mentioning

confidence: 99%

Lithium-boro-tellurite glasses with ZnO additive: Exposure Buildup Factors (EBF) and Nuclear Shielding Properties

Doğan

2020

European Journal of Science and Technology

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“…Following the last few decades from the invention of bioactive glasses, there exists a great of comprehensive scientific research due to its unique biological features namely osteoconduction, anti-inflammatory, antibacterial, osteoinduction and angio-genesis (Bertolla et al, 2017;Jones, 2013). Since of the current values are very close to values of the gamma ray attenuation parameters of bioactive glasses (Tekin et al, 2019), this situation is confirmed that the hydroxyapatite can be very useful for the treatment of the bone. Figure 4 shows the mean free path of the present samples.…”

Section: Resultsmentioning

confidence: 61%

A Comprehensive Research on Gamma-Ray Attenuation Characteristics of the Metal-Doped Hap and Natural Animal Bone

Köksal

Cengi̇z²,

Tozar

et al. 2020

Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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This investigation focuses on the gamma ray attenuation parameters of natural animal bone, iron, cobalt, copper and zinc doped Nano hydroxyapatite artificial bone powders and pure hydroxyapatite. The present specimens were excited by means of gamma ray photons with 59.5 keV energy radiated from a 241-Amercium annular radioactive source with 50 mCi activity by means of narrow beam transmission geometry. The transmitted gamma-rays were counted with using Ultra Low Energy Germanium (Ultra-LEGe) detector with a resolution 150 eV at 5.95 keV. The gamma-ray attenuation characteristics such as mass attenuation coefficient (MAC) (µ/ρ), linear attenuation coefficient (LAC) (µ), half value layer (HVL), tenth value layer (TVL) and mean free path (MFP), which has a significant role in the attenuation studies, are also calculated. The values obtained were checked with the predicted values from the XCOM NIST. The results show that the attenuation data of the metal-doped hydroxyapatite synthetic bone dust is very close to the value of the natural animal bone.

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“…44 Additionally, at 10 MeV the MAC value is 0.026 cm 2 /g which is higher than that reported in the previous work. [43][44][45] HVL and TVL as functions of photon energy and Er 2 O 3 content are shown in Fig. 7.…”

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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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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An extensive investigation on gamma-ray and neutron attenuation parameters of cobalt oxide and nickel oxide substituted bioactive glasses

Cited by 90 publications

References 32 publications

Lithium-boro-tellurite glasses with ZnO additive: Exposure Buildup Factors (EBF) and Nuclear Shielding Properties

Lithium-boro-tellurite glasses with ZnO additive: Exposure Buildup Factors (EBF) and Nuclear Shielding Properties

A Comprehensive Research on Gamma-Ray Attenuation Characteristics of the Metal-Doped Hap and Natural Animal Bone

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

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