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Arab Journal of Nuclear Sciences and Applications
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Volume Volume 54 (2021)
Volume Volume 53 (2020)
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sallam, F., Hager, I., Rammah, Y., Othman, H., Ibrahim, E., Hassan, S., Ahmed, Z. (2020). Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code. Arab Journal of Nuclear Sciences and Applications, 53(2), 177-188. doi: 10.21608/ajnsa.2020.18914.1292
fawzy hammad sallam; Ibrahim Zaki Hager; Yasser saad Rammah; Hosam Ahmed Othman; Eman Mohamed Ibrahim; sayed Fahmy Hassan; Zakaria Ahmed. "Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code". Arab Journal of Nuclear Sciences and Applications, 53, 2, 2020, 177-188. doi: 10.21608/ajnsa.2020.18914.1292
sallam, F., Hager, I., Rammah, Y., Othman, H., Ibrahim, E., Hassan, S., Ahmed, Z. (2020). 'Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code', Arab Journal of Nuclear Sciences and Applications, 53(2), pp. 177-188. doi: 10.21608/ajnsa.2020.18914.1292
sallam, F., Hager, I., Rammah, Y., Othman, H., Ibrahim, E., Hassan, S., Ahmed, Z. Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code. Arab Journal of Nuclear Sciences and Applications, 2020; 53(2): 177-188. doi: 10.21608/ajnsa.2020.18914.1292

Evaluation of gamma rays shielding competence for bentonite clay /PVA polymer matrix using MCNPX code

Article 19, Volume 53, Issue 2, Spring 2020, Page 177-188  XML PDF (346.4 K)
Document Type: Original Article
DOI: 10.21608/ajnsa.2020.18914.1292
Authors
fawzy hammad sallam email orcid 1; Ibrahim Zaki Hager2; Yasser saad Rammah2; Hosam Ahmed Othman2; Eman Mohamed Ibrahim3; sayed Fahmy Hassan4; Zakaria Ahmed5
1Nuclear materials authority
2Department of Physics, Faculty of Science, Menoufia University, Shibin El Kom, Egypt
3Department of Geochemical Exploration, Nuclear Materials Authority, Cairo, Egypt
4Department of Medical and Radiological Research, Nuclear Materials Authority, Cairo, Egypt
5Egyptian Nuclear and Radiological Regulatory Authority, Egypt
Abstract
Radiation shielding capability in terms of mass and linear attenuation coefficients, half value layer, tenth value layer, and mean free path haven been evaluated for natural bentonite coated by polyvinyl alcohol polymer (PVA) using Monte Carlo simulation (MCNPX) and XCOM program. All data were determined at gamma photons energies 662, 1173 and 1332 keV emitted from point sources of 137Cs and 60Co, respectively, and compared with calculated experimental data. XCOM results of mass attenuation coefficients showed better agreement with experimental data in comparison with MCNPX code. The relative deviations between experimental and theoretical mass attenuation coefficients are 4.3, 2.5 and 1.25 % at 662, 1173 and 1332 (keV) while deviation between simulated and experimental mass attenuation coefficients are -3.1, -10.96 and -10.35 % at the same energies, respectively. The relative deviation between simulated shielding factors HVL, TVL and MFPwith experimental data exhibit the same behavior as mass attenuation coefficient and having average relative deviations percentage equal to 2.5, 13.4 and 13.8 % at the studied energies, respectively.
Keywords
Mass Attenuation Coefficient; Bentonite; PVA Polymer; XCOM; MCNPX code
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