کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8251257 | 1533474 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Attenuation-density anomalous relationship of lead alkali borosilicate glasses
ترجمه فارسی عنوان
لیزر بوروسیلیکات آلکالین سرب ضخامت چگالی ضخامت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
The glass system 60 PbO - (40-x) SiO2 - x (0.1 Li2O - 0.86 B2O3 - 0.04 Dy2O3) with 0â¯â¤â¯xâ¯â¤â¯30â¯mol% was synthesized and explored. Based on the FTIR analysis, the content of [BO4] structural units increased by a higher rate than that of [BO3] structural units upon the variation of the concentrations of (0.1 Li2O - 0.86 B2O3 - 0.04 Dy2O3). The increase of the density and the decrease of the molar volume indicated a more compactness of the lead alkali borosilicate network. On the other hand, the attenuation coefficients of lead alkali borosilicate glasses have been measured for different gamma- ray photon energies (356, 662, 1173 and 1332â¯keV) using narrow beam transmission geometry. These coefficients were used in the determination of the mass attenuation coefficients, effective atomic number and effective electron density. The obtained results indicated that the values of the mass attenuation coefficients, the effective atomic number and effective electron density of the glass samples decreased with the increase in the B2O3 concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 150, September 2018, Pages 182-188
Journal: Radiation Physics and Chemistry - Volume 150, September 2018, Pages 182-188
نویسندگان
Y.B. Saddeek, K.H.S. Shaaban, Reda Elsaman, Atef El-Taher, T.Z. Amer,