Fabrication, physical, structure characteristics, neutron and radiation shielding capacity of high-density neodymio-cadmium lead-borate glasses: Nd2O3/CdO/PbO/B2O3/Na2O
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPRINGER HEIDELBERG
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
High-density glasses of neodymio-cadmium lead borate of chemical composition xNd(2)O(3)/20CdO/20PbO/(57-x)B2O3/3Na(2)O, where (0 (0Nd) <= x <= 5 (5Nd) wt%) have been fabricated by a melt quenching process. Physical, structure properties as well as gamma-radiation and neutron shielding effectiveness in wide photon energy range 0.015-15 MeV have been examined. The amorphous nature of xNd-glasses was confirmed, where there was a lack of their crystallinity. Density was gradually increased from 5.006 g/cm(3) for 0Nd-glass sample to 5.245 g/cm(3) for 5Nd-glass sample. In terms of the mass attenuation coefficient (MAC), introducing Nd3+ ions in the glass matrix has a direct constructive influence on the obtained values of MAC. Generally, the MAC trend follows the order (MAC)(5Nd) > (MAC)(4Nd) > (MAC)(3Nd) > (MAC)(2Nd) > (MAC)(1Nd) > (MAC)(0Nd). The linear attenuation coefficient (LAC) has a similar trend as MAC for all xNd-glasses. In terms of the half-value layer (T-1/2), the 5Nd-glasses possessed the minimum T-1/2 values (0.004 cm at 15 keV to 4.301 cm at 15 MeV). Therefore, the T-1/2 of the fabricated xNd-glasses has an inverse behavior of the MAC and LAC. Thus, (T-1/2)(0Nd) > (T-1/2)(1Nd) > (T-1/2)(2Nd) > (T-1/2)(3Nd) > (T-1/2)(4Nd) > (T-1/2)(5Nd). The effective atomic number (Z(eff)) parameter follows the order (Z(eff))(5Nd) > (Z(eff))(4Nd) > (Z(eff))(3Nd) > (Z(eff))(2Nd) > (Z(eff))(1Nd) > (Z(eff))(0Nd). In the energies preferred for radiation applications, 5Nd-glasses possess very low exposure (EBF) and energy absorption (EABF) buildup factor values. The fast neutron removal cross-section (FNRC) of the fabricated glasses is improved as the Nd3+ content increases in the glass matrix.
Açıklama
Anahtar Kelimeler
Glasses, Photon, Neutron, Mass Attenuation Coefficient, Radiation Shielding
Kaynak
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
128
Sayı
7
Künye
Zakaly, H. M. H., Tekin, H. O., Issa, S. A. M., Henaish, A. M. A., Ahmed, E. M., Rammah, Y. S. (2022). Fabrication, physical, structure characteristics, neutron and radiation shielding capacity of high-density neodymio-cadmium lead-borate glasses: Nd2O3/CdO/PbO/B2O3/Na2O. Applied Physics A-Materials Science & Processing, 128(7).
