کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11007418 | 1521551 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Model of ambient dose equivalent for radium contamination: Dependence on the geometry of the source
ترجمه فارسی عنوان
مدل معادل دایمی برای آلودگی رادیوم: وابستگی به هندسه منبع
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کلمات کلیدی
رادیوم، محاسبه دز، مدل مونته کارلو،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
چکیده انگلیسی
Industrial activities involving radium sources, such as watchmaking, were still common up until the 1960s. They produced contaminations in building materials and the soil in a large variety of geometries. The potential remediation of such places requires instruments that are properly calibrated as well as adequate procedures. We have developed a model that estimates the rate of ambient dose equivalent HËâ(10) at 10â¯cm and 1â¯m from a source of 226Ra and its progeny in both the soil or the building materials. Our model, described here, uses Monte Carlo (GEANT4) computed yield functions of HËâ(10) per unit activity induced by point-like sources in different contaminated materials. Fit functions of the yield curve of HËâ(10) are provided for outdoor contamination. The model can be used for any geometrical activity distribution and we present an example showing the dependency of HËâ(10) on the diameter and the depth profile of the sources, for both outdoor and indoor contamination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 192, December 2018, Pages 698-708
Journal: Journal of Environmental Radioactivity - Volume 192, December 2018, Pages 698-708
نویسندگان
Laurent Desorgher, François Bochud, Thomas Flury, Christophe Murith, Sébastien Baechler, Claude Bailat,