کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7900366 1510368 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of gamma-ray shielding properties for silicate glasses containing Bi2O3, PbO, and BaO
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Determination of gamma-ray shielding properties for silicate glasses containing Bi2O3, PbO, and BaO
چکیده انگلیسی
The mass attenuation coefficients (μm), effective atomic cross section (σa), effective atomic number (Zeff) and effective electron density (Neff) of silicate glasses containing different concentrations of Bi2O3, PbO, and BaO (30-70% by weight) were obtained using MCNP-4C code, XCOM and XMuDat programs, in the energy range of 10 keV-10 MeV. The interpolation method was employed to extract Zeff and Neff. The Auto-Zeff software was used to determine the Zeff as well. The MCNP-4C Code, XCOM and XMuDat programs and Auto-Zeff results were in good agreement. It was found that the μm and σa values decrease with photon energy. Also the results indicate that σa and Zeff of glasses improve by increasing their Bi2O3, PbO and BaO contents, while increasing these contents to the same fraction has no significant effect on μm in the energy range of 0.3-5 MeV, where the Compton Effect takes over as dominant process and Neff do not follow certain rule. Above 0.1 MeV, lead oxide silicate glass showed the highest values of Zeff and σa. Wherever possible, the simulated and calculated values were compared with experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 479, 1 January 2018, Pages 62-71
نویسندگان
, , , , ,