کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7987680 1515281 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
PKA distributions: Contributions from transmutation products and from radioactive decay
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
PKA distributions: Contributions from transmutation products and from radioactive decay
چکیده انگلیسی
The neutrons generated in fusion plasmas interact with materials via nuclear reactions. The resulting transmutations and atomic displacements have life-limiting consequences for fusion reactor components. A detailed understanding of the production, evolution and material consequences of the damage created by cascades of atomic displacements requires, as a vital primary input, a complete description of the energy-spectrum of initial (prompt) atomic displacement events (the primary knock on atoms or PKAs) produced by direct neutron nuclear interactions. There is also the possibility that the radionuclides produced under transmutation will create further PKAs as they decay, and so the rate of these must also be quantified. This paper presents the latest results from the analysis of PKA spectra under neutron irradiation, focussing particularly on the variation in PKA distributions due to changes in composition under transmutation, but also on the PKA contributions from radioactive decay of materials that become activated under irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Materials and Energy - Volume 9, December 2016, Pages 576-580
نویسندگان
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