Gamma ray buildup factors of lithium borate glasses doped with minerals

2018 ◽  
Vol 752 ◽  
pp. 61-67 ◽  
Author(s):  
Esra Kavaz ◽  
Nergiz Yıldız Yorgun
Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5894
Author(s):  
Ghada ALMisned ◽  
Huseyin O. Tekin ◽  
Ghaida Bilal ◽  
Antoaneta Ene ◽  
Gokhan Kilic ◽  
...  

We aimed to determine the contribution of various trivalent ions like Al and rare-earths (Y, Nd, Sm, Eu) on resistance behaviors of different types of bismo-borate glasses. Accordingly, eight different bismuth borate glasses from the system: 40Bi2O3–59B2O3–1Tv2O3 (where Tv = Al, Y, Nd, Sm, and Eu) and three glasses of (40Bi2O3–60B2O3; 37.5Bi2O3–62.5B2O3; and 38Bi2O3–60B2O3–2Al2O3) compositions were extensively investigated in terms of their nuclear attenuation shielding properties, along with effective conductivity and buildup factors. The Py-MLBUF online platform was also utilized for determination of some essential parameters. Next, attenuation coefficients, along with half and tenth value layers, have been determined in the 0.015 MeV–15 MeV photon energy range. Moreover, effective atomic numbers and effective atomic weight, along with exposure and energy absorption buildup factors, were determined in the same energy range. The result showed that the type of trivalent ion has a direct effect on behaviors of bismo-borate glasses against ionizing gamma-rays. As incident photon energy increases, the effective thermal conductivity decreases rapidly, especially in the low energy range, where photoelectric effects dominate the photon–matter interaction. Sample 8 had the minimum heat conductivity at low photon energies; our findings showed that Eu-reinforced bismo-borate glass composition, namely 40Bi2O3–59B2O3–1Eu2O3, with a glass density of 6.328 g/cm3 had superior gamma-ray attenuation properties. These outcomes would be useful for the scientific community to observe the most suitable additive rareearth type and related glass composition for providing the aforementioned shielding properties, in terms of needs and utilization requirements.


2019 ◽  
Vol 125 (7) ◽  
Author(s):  
Mohammed Sultan Al-Buriahi ◽  
Baris T. Tonguc

2020 ◽  
Vol 539 ◽  
pp. 120049 ◽  
Author(s):  
Umit Kara ◽  
Shams A.M. Issa ◽  
N. Yildiz Yorgun ◽  
O. Kilicoglu ◽  
M. Rashad ◽  
...  

2018 ◽  
Vol 766 ◽  
pp. 246-251 ◽  
Author(s):  
Punsak Glumglomchit ◽  
Juniastel Rajagukguk ◽  
Jakrapong Kaewkhao ◽  
Keerati Kirdsiri

This work, gamma-ray shielding properties of the lutetium lithium borate glasses in the system Lu2O3 - Li2O - B2O3 have been evaluated as a shielding material at 662 keV photon energy. While the experimental mass attenuation coefficients (μm) have been determined by using the narrow beam transmission method, the theoretical data were calculated using WinXCom program. The good agreements between experimental and theoretical values have been obtained. Both experimental and computational mass attenuation coefficients data were used to obtain the effective atomic number (Zeff), and the effective electron density (Nel). Based on the obtained data, the Lu-based glasses have good shielding properties, the improved glasses could be used as gamma-rays shielding material.


1982 ◽  
Vol 43 (C9) ◽  
pp. C9-497-C9-500 ◽  
Author(s):  
M. Devaud ◽  
J.-Y. Prieur

2009 ◽  
Vol 117 (1) ◽  
pp. 244-249 ◽  
Author(s):  
B. Harihara Venkataraman ◽  
T. Fujiwara ◽  
K.B.R. Varma ◽  
T. Komatsu

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