Loading...
Please wait, while we are loading the content...
Similar Documents
Enhancement of Gamma-ray Shielding Properties in Cobalt-Doped Heavy Metal Borate Glasses: The Role of Lanthanum Oxide Reinforcement
| Content Provider | MDPI |
|---|---|
| Author | Almisned, Ghada Elshami, Wiam Issa, Shams A. M. Susoy, Gulfem Zakaly, Hesham M. H. Algethami, Merfat Rammah, Y. S. Ene, Antoaneta Al-Ghamdi, S. A. Ibraheem, Awad A. Tekin, H. O. |
| Copyright Year | 2021 |
| Description | The direct influence of $La^{3+}$ ions on the gamma-ray shielding properties of cobalt-doped heavy metal borate glasses with the chemical formula $0.3CoO-(80-x)B_{2}O_{3}-19.7PbO-xLa_{2}O_{3}$: x = 0, 0.5, 1, 1.5, and 2 mol% was examined herein. Several significant radiation shielding parameters were evaluated. The glass density was increased from 3.11 to 3.36 $g/cm^{3}$ with increasing $La^{3+}$ ion content from 0 to 2 mol%. The S5 glass sample, which contained the highest concentration of $La^{3+}$ ions (2 mol%), had the maximum linear (μ) and mass $(μ_{m}$) attenuation coefficients for all photon energies entering, while the S1 glass sample free of $La^{3+}$ ions possessed the minimum values of μ and $μ_{m}$. Both the half value layer $(T_{1/2}$) and tenth value layer (TVL) of all investigated glasses showed a similar trend of $(T_{1/2}$, $TVL)_{S1}$ > $(T_{1/2}$, $TVL)_{S2}$ > $(T_{1/2}$, $TVL)_{S3}$ > $(T_{1/2}$, $TVL)_{S4}$ > $(T_{1/2}$, $TVL)_{S5}$. Our results revealed that the S5 sample had the highest effective atomic number $(Z_{eff}$) values over the whole range of gamma-ray energy. S5 had the lowest exposure (EBF) and energy absorption (EABF) build-up factor values across the whole photon energy and penetration depth range. Our findings give a strong indication of the S5 sample’s superior gamma-ray shielding characteristics due to the highest contribution of lanthanum oxide. |
| Starting Page | 7703 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14247703 |
| Journal | Materials |
| Issue Number | 24 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-13 |
| Access Restriction | Open |
| Subject Keyword | Materials Applied Chemistry Nuclear Energy and Engineering Lead Borate Glasses Gamma Ray Mass Attenuation Radiation Resistance |
| Content Type | Text |
| Resource Type | Article |
