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Your search keyword '"O.I. Sallam"' showing total 2 results
Start Over Author "O.I. Sallam" Journal journal of non-crystalline solids
2 results on '"O.I. Sallam"'

2. Effect of gamma irradiation on some spectroscopic properties of phosphate glass containing samarium ions

Author

N.A. El-Alaily, O.I. Sallam, and F.M. Ezz-Eldin

Subjects
010302 applied physics, Materials science, Photoluminescence, Band gap, Gamma ray, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Spectral line, Electronic, Optical and Magnetic Materials, Phosphate glass, Ion, Samarium, chemistry, 0103 physical sciences, Materials Chemistry, Ceramics and Composites, Fourier transform infrared spectroscopy, 0210 nano-technology
Abstract

Changes of FTIR, UV–Visible spectra, photoluminescence with varying Sm content in phosphate glass containing sodium, lead and aluminum were studied. Refractive index values have been measured and their values were listed to be between ~ 1.5–1.7. Furthermore the effect of subjecting this glass to gamma rays was also investigated. The results showed that glass containing 1%Sm had the highest NBOs according to FTIR, UV-Visble results. The optical energy band gap and Urbach values supported this assumption. The presence of Sm3+ which can be reduced to Sm2+ in addition to the NBOs produced due to the addition of Sm ions in the glass matrix, causing a reduction of gamma rays effect. This may give a clue to the ability of using this glass as an immobilizer or shielded for gamma rays or as a burial for high energy radioactive materials.

Published
2019
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