کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1683142 1010492 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Trace element quantification in high-resolution Rutherford backscattering spectrometry
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Trace element quantification in high-resolution Rutherford backscattering spectrometry
چکیده انگلیسی
The potential of high resolution Rutherford Backscattering (RBS) for identification and quantification of trace elements in thin films was investigated. A beam of 250 keV d+ ions from the AN700 van de Graaff accelerator in Linz was used to characterize the composition of an organic multi-element compound, i.e. a thin film of dried human blood on a carbon substrate. It was possible to identify more than 10 chemical elements with high accuracy, in the absence of any matrix effects. For instance, the Fe concentration was determined with a relative error <3% (400 ± 10 ppm), in perfect agreement with standard blood test values. The detection limit of heavy elements with atomic number higher than Fe was found to be below 50 ppm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 269, Issue 11, 1 June 2011, Pages 1284-1287
نویسندگان
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