Journal Article

PbF2 as a key modulator of gamma radiation shielding in PbO–PbF2–B2O3–SiO2 glass systems

Sayyed, M. I.

2024

Overview

The radiation shielding properties of lead fluoroborate glasses containing 30 mol% SiO 2 have been examined using Phy-X software. The mass attenuation coefficient (MAC) results demonstrated that the tetsed glasses are good attenuator against the low energy radiation, and their attenuation performance diminishes as the energy of the radiation increases. The MAC increases with the addition of PbF 2 , and the difference in MAC between the glasses with different PbF 2 contents is significantly high at lower energy region. At high energy, the difference in MAC between the glasses is small which suggested that as the energy of the photons increases, the MAC for these glasses tend to converge. The linear attenuation coefficient (LAC) for the glasses is investigated and we found that the LAC for the glass with 49 mol% of PbF 2 is 58% bigger than that of the glass with 21 mol%. We investigated the average half value layer ( HVL ¯ ) for the tested glasses when exposed to 137 Cs and 60 Co and the results showed that the values of HVL ¯ for 60 Co are about double those for 137 Cs for all glasses, which suggests that the energies emitted by 60 Co in general penetrate the glass sample more deeply in comparison with the photons emitted by 137 Cs. The mean free path (MFP) of the glasses against the density shows the desirable properties of PbF 2 , as the MFP values decrease when the density increases.

• Publisher: Springer US
• Subject: Characterization and Evaluation of Materials / Computer Communication Networks / Electrical Engineering / Lasers / Optical Devices / Optics / Photonics / Physics / Physics and Astronomy