این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Medical Physics، جلد ۱۷، شماره ۳، صفحات ۲۰۵-۲۱۲
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Radiation Shielding Features of Ordinary and High-Density Concretes Loaded With PbO Micro and Nanoparticles against High-Energy Photons
چکیده انگلیسی مقاله Introduction: The present study aimed to evaluate the impact of PbO nano and micro-sized fillers on ordinary and heavy concretes for different photon energies. Material and Methods: The MCNPX Monte Carlo code (version 2.6.0) was used for all simulations in the present study. A model of narrow-beam geometry was validated and utilized to calculate the linear attenuation of samples. Three concentrations of PbO, including the weight of 23%, 37.5%, and 50% were simulated. The nano- and microparticle-loaded concretes were simulated using the Lattice and Universe properties of MCNPX code. Finally, the mass attenuation coefficients of studied concretes were analyzed and compared in this study. Results: Among all the studied concretes, the highest increase of 11% in attenuation coefficient was seen for concretes doped with PbO nanoparticles. The particle size effect was not observed for 18 MeV photon beam, and maximum difference between nano-fillers and micro-fillers was observed for photon energies around 1 MeV. Conclusion: The difference between nano-fillers and micro-fillers was not significant for heavy concretes in comparison to that for ordinary concrete. It is recommended to apply PbO nanoparticles as effective filler in the ordinary concrete composition for providing higher shielding performance. 
کلیدواژه‌های انگلیسی مقاله Attenuation Coefficient Concrete, Nanoparticle, Radiation
نویسندگان مقاله | Khatibeh Verdipoor
Medical Radiation Sciences Research Team, Tabriz University of Medical Sciences, Tabriz, Iran


| Asghar Mesbahi
Tabriz University of Medical Sciences
نشانی اینترنتی http://ijmp.mums.ac.ir/article_13565.html
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/145/article-145-2377932.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Paper
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات