期刊
RADIATION PHYSICS AND CHEMISTRY
卷 139, 期 -, 页码 33-39出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2017.05.013
关键词
Optical materials; Tellurite glasses; Mass attenuation coefficient; Effective atomic number; Half-value layer (HVL); Exposure buildup factors (EBF)
In this work, we have evaluated the y-ray shielding parameters such as mass attenuation coefficient (mu/p), effective atomic number (Z(eff)), half value layer (HVL), mean free path (MFP) and exposure buildup factors (EBF) for heavy metal fluoride (PbF2) based tellurite-rich glasses. In addition, neutron total macroscopic cross sections (Sigma(R)) for these glasses were also calculated. The maximum value for mu/p, Z(eff) and Sigma(R) was found for heavy metal (Bi2O3) oxide introduced glass. The results of the selected glasses have been compared, in terms of MFP with different glass systems. The shielding effectiveness of the selected glasses is found comparable or better than of common ones, which indicates that these glasses with suitable oxides could be developed for gamma ray shielding applications.
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