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Synthesis, Structure, and Gamma-Ray Shielding Properties of Phosphate Glass Doped with Naturally Extracted Neodymium |
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PP: 255-264 |
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doi:10.18576/jrna/090309
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Author(s) |
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M. S. Hafiz,
M. G. El-Feky,
Eman Ibrahim,
N.S. Gomaa,
Atef El-Taher,
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Abstract |
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| Herein, an efficient new glass series was prepared via the melt-quenching method, with the composition (62-
x)NH4H2PO4 + 20B2O3 + 5ZnO + 10Bi2O3 + 3Na2CO3 + xNd2O3, where x takes on the values of 0, 1, 2, and 3 mol%. The
glass structure was analyzed using FTIR spectroscopy, density (ρ), molar volume (Mv), and XRD techniques. The glass
samples were irradiated with collimated gamma rays at three energy lines of 662, 1173, and 1332 KeV emitted by 137Cs
and 60Co, respectively. Radiation shielding parameters such as Nel (electron density), Zeff (effective atomic number), HVL
(half-value layer), μ/ρ (mass attenuation coefficients), TVL (Tenth value layer), and MFP (mean free path) were
theoretically calculated using the XCOM program and experimentally measured with a NaI(Tl) scintillation detector. The
theoretical and experimental values of the mass attenuation coefficients exhibit a slight discrepancy (by < 15%). The
shielding features are associated with the composition of the investigated phosphate glass samples. Notably, an increase in
shielding properties was observed with the increasing Nd2O3 content in the structure of the phosphate glass samples. |
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