Investigation of gamma-ray shielding properties of bismuth borotellurite glasses using MCNPX code and XCOM program

Sayyed, M.I.; Ali, Aidy; Tekın, H.O.; Rammah, Y.S.

doi:10.1007/s00339-019-2739-x

Cited by 23 publications

(10 citation statements)

References 35 publications

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“…The main impurities in the product were Ca, Mg, Al, and Si, and the purity of NdCl 3 ·6H 2 O was 98.1%. NdCl 3 ·6H 2 O can be used as a raw material to prepare the Nd metal, petroleum catalysts, glass colorants, and magnetic materials after vacuum dehydration. , …”

Section: Results and Discussionmentioning

confidence: 99%

Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si

Lei

et al. 2021

ACS Sustainable Chem. Eng.

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The extraction of rare earth elements (REEs) from rare earth oxide slag is a major challenge of recycling REEs from REE-containing wastes using pyrometallurgical approaches, especially the recycling of Nd from spent NdFeB permanent magnets. In this study, a novel and effective approach is proposed for extracting Nd from Nd 2 O 3 -containing slag. First, low-purity Si (99.2%) was used as a reductant to extract Nd from Nd 2 O 3containing slag to prepare a bulk Si−Nd alloy. The bulk Si−Nd alloy represents one of the final products and achieves the purpose of Nd recycling because of its wide applications; alternatively, the bulk Si−Nd alloy can be further separated into Si powder and Ndcontaining HCl solution by HCl acid leaching. Thereafter, three methods can be used to recover Nd from the Nd-containing HCl solution: (1) NH 3 •H 2 O can be used to precipitate Nd 3+ as NdOCl hydrate sediment, which is roasted to obtain high-purity NdOCl (99.0%); (2) HF can be used to precipitate Nd 3+ as NdF 3 (97.0%); or (3) NdCl 3 •6H 2 O (98.1%) can be obtained after completely distilling the Nd-containing HCl solution. This new technology not only permits the recovery of Nd from the Nd 2 O 3 -containing slag but also increases the purity of Si from 99.2 to 99.997%.

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Section: Results and Discussionmentioning

confidence: 99%

Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si

Lei

et al. 2021

ACS Sustainable Chem. Eng.

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“…9. In order to evaluate the MFP of those samples, the density and the weight fractions of those radiation shielding glasses are used from Table 1 [32]. In addition, Phy-X/PSD program is used to calculate the MFP values for the investigated Q1-Q5 glasses at the energies under study.…”

Section: Resultsmentioning

confidence: 99%

“…-NdCl 3 glass specimens with respect to the decreasing molar fraction of sodium oxide, Na 2 O, and increasing molar fraction neodymium chloride, NdCl 3 , referred to as Q1, Q2, Q3, Q4 and Q5, have been investigated using the MCNP method by Sayyed et al [32]. Parameters of chemical containing the densities of the Q glasses together with the weight fraction of each element are shown in Table 1.…”

Section: Methodsmentioning

confidence: 99%

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Investigation of radiation protection features of the TeO2–B2O3–Bi2O3–Na2O–NdCl3 glass systems

Eshghi

2020

J Mater Sci: Mater Electron

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In this research, the radiation protection features of bismuth boro-tellurite doped with NdCl 3 glass system in the form of 65B 2 O 3 -12.5Bi 2 O 3 -12.5TeO 2 -(10 − y)Na 2 O-yNdCl 3 with 0 ≤ y ≤ 10 mol% have been investigated by using Phy-X/PSD, XMuDat and XCOM programs. The photon radiation shielding parameters of suggested glasses were calculated in the photon energy range of 0.015-15 MeV. The results showed that the addition of NdCl 3 in the present glass system improves the shielding performance of the glasses system. The obtained results have been plotted and discussed in terms of photon energy. Also, the obtained results were compared together.

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“…On the other hand, the toxic effect of lead used in these materials and the fact that the lead has a brittle structure shortens the service life of the protective material [6]. In order to overcome this disadvantageous situation, the demand for glass materials as alternative materials is increasing [7][8][9][10][11]. Glass-ceramic materials have the same chemical composition as glass, but have a different structure from them.…”

Section: Introductionmentioning

confidence: 99%

P2O5 Katkılı Lityum Alüminyum Silikat (LAS) Cam Sistemlerinin Nükleer Radyasyon Zırhlamasına Etkisi

Doğan

2019

European Journal of Science and Technology

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In this work, shielding parameters of LAS (lithium-aluminum-silicate) Li2O-Al2O3-SiO2 glass samples have been reported with the help of the WinXCom code, a Windows version of the XCOM database. The effect of increasing P2O5 concentration on the shielding parameters has been examined in the used Li2O-Al2O3-SiO2 glass samples. The shielding effectuality of the materials for gamma-ray can be interpreted with the help of several different attenuation parameters which plays key role in understanding the shielding capabilities of the material. The mass attenuation coefficient, defined by = / , is the most basic coefficient used to calculate the shielding parameters. These parameters are the mean free path (MFP), half value layer (HVL), tenth value layer (TVL), effective electron number (Ne) and equivalent atomic number (Zeq). The exposure buildup factor (EBF) and GP fitting parameters are also calculated by the method of logarithmic interpolation using Zeq of a Li2O-Al2O3-SiO2 glass system. The EBF values for Li2O-Al2O3-SiO2 glass samples show an inverse relation with Ne. Further, P1 (least Ne) offers maximum values of EBF and P6 (highest Ne) offers minimum EBF values. The change in different shielding parameters for the selected glasses was interpreted by considering three interactions with the substance (Photoelectric effect, Compton scattering and pair production). The obtained results show that the strongly depends on the photon energy, chemical composition and density of the shielding materials. It is clear to see that P6 glass sample having the highest P2O5 concentration is the most effective glass sample among the other glasses of Li2O-Al2O3-SiO2 system in nuclear radiation shielding ability.

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Investigation of gamma-ray shielding properties of bismuth borotellurite glasses using MCNPX code and XCOM program

Cited by 23 publications

References 35 publications

Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si

Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si

Investigation of radiation protection features of the TeO2–B2O3–Bi2O3–Na2O–NdCl3 glass systems

P2O5 Katkılı Lityum Alüminyum Silikat (LAS) Cam Sistemlerinin Nükleer Radyasyon Zırhlamasına Etkisi

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Investigation of gamma-ray shielding properties of bismuth borotellurite glasses using MCNPX code and XCOM program

Cited by 23 publications

References 35 publications

Novel Approach for the Simultaneous Recovery of Nd from Nd2O3-Containing Slag and the Preparation of High-Purity Si

Novel Approach for the Simultaneous Recovery of Nd from Nd2O3-Containing Slag and the Preparation of High-Purity Si

Investigation of radiation protection features of the TeO2–B2O3–Bi2O3–Na2O–NdCl3 glass systems

P2O5 Katkılı Lityum Alüminyum Silikat (LAS) Cam Sistemlerinin Nükleer Radyasyon Zırhlamasına Etkisi

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Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si

Novel Approach for the Simultaneous Recovery of Nd from Nd₂O₃-Containing Slag and the Preparation of High-Purity Si