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- Title
Nd<sub>2</sub>O<sub>3</sub>- doped borate/phosphate glasses for optical and radiation shielding applications: fabrication, physical, optical as well as gamma-ray attenuation capacity.
- Authors
Alsaif, Norah A. M.; Al-Ghamdi, Hanan; Zakaly, Hesham M. H.; Nasr, M. H.; Rammah, Y. S.; Abouhaswa, A. S.
- Abstract
Four glass systems of Nd2O3- doped borate/phosphate glasses with nominal compositions of (58-x)B2O3 + 25P2O5 + 7BaO + 10Li2O + xNd2O3:(0 (BPBLN0) ≤ x ≤ 3 (BPBLN3)) molar percentage were obtained by ordinary melt-quench approach. Physical properties, XRD measurements, and UV–Vis spectroscopy for these glass blocks were investigated. Also, the influence of the insertion of Nd3+ ions in structured glass on gamma-ray attenuation competence has been examined at selected photon energy (283.5 keV (137Cs)–2506 keV (60Co) via FLUKA code and Phy-X/PSD online platform. XRD patterns pinpointed a loss of ordered crystalline structure and verified the amorphous state of the glass blocks. Density (ρglass) of enhanced from 2.71 to 2.86 g/cm3. The optical-energy-gap (Eg) diminished from 4.12 to 3.91 eV and 3.45 eV to 3.20 eV for direct and indirect transitions, respectively. The Urbach-energy (EU) values were ranged from 0.74 eV for BPBLN0 to 0.35 eV for BPBLN3 glass. Mass-attenuation-coefficient was increased as Nd+3 ions increased in glass structure as: (BPBLN3)MAC > (BPBLN2)MAC > (BPBLN1)MAC > (BPBLN0)MAC. At incoming photon energy, E = 2506 keV, the half-value-layer were decreased as Nd+3 ions increased in glass structure as HVL = 6.603 cm, 6.510 cm, 6.392 cm, and 6.227 cm for BPBLN0, BPBLN1, BPBLN2, and BPBLN3 samples, respectively. The effective-atomic-number (Zeff) followed the trend: (BPBLN3)Zeff > (BPBLN2)Zeff > (BPBLN1)Zeff > (BPBLN0)Zeff. These outcomes confirmed that BPBLN-glass systems have the prospective to be regarded as suitable materials for applications involving optical and radiation attenuation.
- Subjects
PHOSPHATE glass; OPTICAL glass; RADIATION shielding; GLASS structure; BORATES; X-ray diffraction
- Publication
Optical & Quantum Electronics, 2024, Vol 56, Issue 4, p1
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-023-06194-6