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International Journal of Radiation Research، جلد ۱۴، شماره ۴، صفحات ۳۷۹-۳۸۳
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی Design and fabrication of high density borated polyethylene nanocomposites as a neutron shield
چکیده انگلیسی مقاله Background: Polyethylene composites including boron can be used as an effective neutron shield. Our investigation focuses on manufacturing borated polyethylene nano-composite. The purpose of this study is to design a radiation shield for use in both neutron and gamma fields. Materials and Methods: Borated polyethylene shields containing 2%, and 5% weight percentage of Boron nano-particles were constructed and their neutron attenuation was compared with pure polyethylene. Polycarbonate films were used to find the attenuation of Am-Be neutrons after passing the shields. Mechanical properties of the shields were finally compared. Results: Mean (± SD) number of α tracks induced by neutrons passing through the shields, were found to be 1.0488×103±128.98, 1.1972×103±289.56and 1.5340×103±206.52 for polyethylene with 5% by weight, polyethylene with 2% by weight boron nano-particles, and pure polyethylene, respectively. The neutron spectrum after each shield was also obtained by MCNP4C Monte Carlo simulations. On the other hand, borated polyethylene nano-composites showed higher tensile strength compared to that of pure polyethylene. Attenuation of neutrons measured in experiments and the result of MCNP simulation were in good agreement. Conclusion: A statistically significant difference was found between neutron attenuation by borated polyethylene nanocomposite made of 5% by weight boron and pure polyethylene. However, the difference between borated polyethylene nano-composite with 5% weight and 2% wt boron was not statistically significant.
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نویسندگان مقاله سید محمد جواد مرتضوی | s m j mortazavi
department of medical physics and medical engineering, and the center for research in radiation sciences crrs , shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

m کاردان | m. kardan
nuclear science and technology research institute, tehran, iran


s سینا | s. sina
department of nuclear engineering, school of mechanical engineering, shiraz university, shiraz, iran

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

h بهاروند | h. baharvand
department of polymer chemistry, iran polymer institute, tehran, iran


n شرفی | n. sharafi
department of radiology, school of paramedical sciences, shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

نشانی اینترنتی http://ijrr.com/browse.php?a_code=A-10-1-643&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/42/article-42-311168.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده مرور و بررسی کلی
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