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Nb2O5-Li2O-Bi2O3-B2O3 novel glassy system: evaluation of optical, mechanical, and gamma shielding parameters Shams A. M. Issa1,2,*, M. Rashad1,3, Hesham M. H. Zakaly2,4,* A. S. Abouhaswa6

, H. O. Tekin5, and

1

Physics Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia Physics Department, Faculty of Science, Al-Azhar University, Assuit 71524, Egypt 3 Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt 4 Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia 620002 5 Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates 6 Physics Department, Menoufia University, Shebin El Koom 32511, Egypt 2

Received: 21 August 2020

ABSTRACT

Accepted: 17 October 2020

For the Nb2O5-Li2O-Bi2O3-B2O3 glass system, optical, structure, mechanical gamma, and neutron radiation shielding aspects were examined comprehensively. The two probabilities of the bandgaps, direct and indirect transition, were evaluated. The absorbance of the recent glasses was increased as Nb2O5 increased. Moreover, the peak shifted to a longer wavelength as Nb2O5 increased. Our results show a decreasing behavior of both kinds of the bandgap. Adopting XCOM within 0.04–15 MeV, LAC and MAC were evaluated for all samples and calculated MAC values are in excellent compliance with deduced FLUKA code respective MAC outcomes. Zeff, HVL, and MFP values were estimated. MAC, Zeff, HVL, and MFP values depended on glass components and energy. Moreover, using equivalent atomic numbers (Zeq) and the geometric progression fitting procedure, EABF values were calculated up to 40 mfp, within 0.015–15 MeV. Comparatively higher density (4.9454 g/cm3), greater LAC, MAC, Zeff, Zeq, and lower HVL, MFP, EABF values achieved for 10Nb2O510Li2O-30Bi2O3-50B2O3 glass indicated it as a better gamma shield. Furthermore, the calculated RR shows that the 10Nb2O5-10Li2O-30Bi2O3-50B2O3 sample has commensurately greater RR (= 0.1744 cm-1).

Ó

Springer Science+Business

Media, LLC, part of Springer Nature 2020

Address correspondence to E-mail: [email protected]; [email protected]; [email protected]

https://doi.org/10.1007/s10854-020-04707-7

J Mater Sci: Mater Electron

1 Introduction

collimator

Fig. 2 The X-ray diffraction patterns of the quenched samples

Photon Energy (eV) 4.1 6.0

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NLB1 NLB2 NLB3 NLB4 NLB5

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Absorbance

In the twenty-first century, the ionizing radiations have been used daily in our lives in various useful implementations such as medical, agrarian, and manufacturing. Radiations are emitted from a specific radioactive source and then transport through an environment. To protect the environment from radiation, a suitable absorber material is required. The absorber could be material or tissue. Further, when the ionizing radiation interacts with a tissue, it can cause very dangerous consequences. These risky cons