کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739165 1016836 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Uncertainties of internal dose assessment for animals and plants due to non-homogeneously distributed radionuclides
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Uncertainties of internal dose assessment for animals and plants due to non-homogeneously distributed radionuclides
چکیده انگلیسی

The dose conversion coefficients (DCCs) for the assessment of internal absorbed dose rate in reference animals and plants have been generally calculated assuming a homogeneous distribution of radionuclides within the body. Realistic scenarios of internal exposure must account for some radionuclides which tend to concentrate in specific organs or tissues. To study the effect of such inhomogeneous distributions, internal DCCs have been calculated assuming both a central and an eccentric point source. The analysis of the results showed that uncertainties of the whole body DCC due to non-homogeneous radionuclide distribution are less than 30% for photons and electrons for all considered organisms. For electrons, the uncertainties are negligible below certain energies, dependent on the size of the organisms. Additionally, the organ doses due to the accumulation of the radionuclide in an organ are also described and organ/whole body doses ratios are estimated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 99, Issue 9, September 2008, Pages 1449–1455
نویسندگان
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