Effect of Bismuth Ratios on the Gamma Shielding Properties for NBR/Nano Silica Composites
Volume 4, Issue 1, June 2020, Pages: 14-19
Received: Jan. 2, 2020;
Accepted: Jan. 8, 2020;
Published: Jan. 21, 2020
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Amal Abdel Razek El-Gamel, Radiation Safety Department, Egyptian Nuclear and Radiological Regulator Authority (ENRRA), Nasr City, Egypt
Elham Mahmud Hegazi, Quality control & Quality Assurance Department, Egyptian Nuclear and Radiological Regulator Authority (ENRRA), Nasr City, Egypt
The effect of the different ratios of bismuthon Nitrile Butadiene Rubber (NBR)/nano silica composite as shielding materials are studied in this study. And the study was carried on for gamma ray photon energies (0.3, 0.6, 1.25, 3 and 7) MeV obtained by (131Ir, 60Co and 137Cs) radioactive sources by using MCNP5, WINXCOM and Matlab. The numerical simulation results showed that, the shielding properties (Linear and mass attenuation coefficients, Transmission factors, Half value layer and radiation protection efficiency) of the composite materials increase with increase in the bismuth ratio and decreases with increase in energy. Also the results show that, Half-value layer (HVL) decrease with increase in the Bismuth ratio and increase with increase in gamma photon energy. It is found that the optimum concentration of Bismuth is 60%. The results confirm that rubber composites loaded with bismuth can act as an excellent gamma radiation shielding materials.
Amal Abdel Razek El-Gamel,
Elham Mahmud Hegazi,
Effect of Bismuth Ratios on the Gamma Shielding Properties for NBR/Nano Silica Composites, Applied Engineering.
Vol. 4, No. 1,
2020, pp. 14-19.
NCRP Report No. 151: “Structural Shielding Design and Evaluation or Megavoltage X-ray/c-ray Radiotherapy Facilities” (Oxford University Press, Oxford, 2005).
Eskandar Asadi Amirabadi, Marzieh Salimi, Nima Ghal-Eh, Gholam Reza Etaati, and Hossien Asadi, (2013) “Study of Neutron and Gamma Radiation Protective Shield” International Journal of Innovation and Applied Studies, Vol. 3, No. 4, PP. 1079–1085.
Siqi Xu, ''A Novel Ultra-light Structure for Radiation Shielding'' (2008) MSc. Thesis, Nuclear Engineering Raleigh, North Carolina.
Turgay Korkut, Osman Gencel, Erol Kam, and Witold Brostow, (2013) “X-Ray, Gamma, and Neutron Radiation Tests on Epoxy-Ferrochromium Slag Composites by Experiments and Monte Carlo Simulations”, International Journal of Polymer Analysis and Characterization, Vol. 18, No. 3, PP. 224-231.
K. H. Mahdi, Z. S. Ahmed, and A. F. Mkhaiber'' Calculation and Study of Gamma ray Attenuation Coefficients for Different Composites'' (2012) Ibn Al-Haitham Journal for Pure and Applied Science Vol. 25, No. 3, PP. 133-141.
G. Pan, J. E. Mark, and D. W. Schaefer, (2003) “Synthesis and Characterization of Fillers of Controlled Structure Based on Polyhedral Oligomeric Silsesquioxane Cages and Their Use in Reinforcing Siloxane Elastomers” Journal of Polymer Science Part B: Polymer Physics, Vol. 41, PP. 3314–3323.
Barba, A. A., G. Lamberti, M. D'Amore, and D. Acierno, (2006) “Carbon Black/Silicone Rubber Blends as Absorbing Materials to Reduce Electro Magnetic Interferences (EMI)" Polymer Bulletin, Vol. 57, PP. 587-593.
Y. El Mahroug, B. Tellili, and C. Souga, (2013)'' Calculation of gamma and neutron shielding parameters for some materials polyethylene-based'', International Journal of Physics and Research Vol. 3, No. 1, PP. 33-40.
D. R. Paul, and J. E. Mark, (2013) “Fillers for Polysiloxane (Silicone) Elastomers” Progress in Polymer Science, Vol. 35, PP. 893–901.
K. Rajkumar, P. Ranjan, P. Thavamani, P. Jeyanthi, P. Pazhanisamy, 2013, ”DISPERSION STUDIES OF NANOSILICA IN NBR BASED POLYMER NANOCOMPOSITE”, Vol. 6, No. 2, 122-133.
E. M. Hegazi, H. M. Eyssa, A. A. Abd El-Megeed.” Effect of nanofiller on the ageing of rubber seal materials under gamma irradiation” 2019, Journal of Composite Materials, 1-12.
S. Sharifi, R. Bagheri, S. P. Shirmadi, Comparison of shielding properties for ordinary, barite, serpentine and steel-magnetite using MCNP-4C code and available experimental results. Ann. Nucl. Energy 53, 529–534 (2013).
S. P. Shirmardi, M. Shamsaei, M. Naserpur, Comparison of photon attenuation coefficients of various barite concretes and lead by MCNP code, XCOM and experimental data. Ann. Nucl. Energy 55, 288–291 (2013).
V. P. Singh, S. P. Shirmardi, M. E. Medhat, N. M. Badiger. “Determination of mass attenuation coefficient for some polymers using Monte Carlo simulation”, Vacuum 119, 284–288 (2015).
H. O. Tekin, T. Manici,” Simulations of mass attenuation coefficients for shielding materials using the MCNP-X code”, 2017, Nuclear Science and Techniques.
“RSICC Computer Code Collection. MCNPX User’s Manual”, (2002), Version 2.4.0., Monte Carlo N-Particle Transport Code System for Multiple and High Energy Applications.
M. R. Ambika, N. Nagaiah, S. K. Suman,“Role of bismuth oxide as a reinforcer on gamma shielding ability of unsaturated polyester based polymer composites”, 2016, J. Appl. Polym. Sci.
EI-Fiki, S.; EI Kameesy, S. U.; EI Nashar, D. E.; Abou-Leila, M. A.; EI-Mansy, M. K.; Ahmed, M. Int. J. Adv. Res. 2015, 3, 1035. "Influence of Bismuth Contents on Mechanical and Gamma Ray Attenuation Properties of Silicone Rubber Composite."