کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8041531 | 1518687 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of actinides and rare earths in natural matrices with the AGLAE new, high sensitivity detection set-up
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection of actinides and rare earths in natural matrices with the AGLAE new, high sensitivity detection set-up Detection of actinides and rare earths in natural matrices with the AGLAE new, high sensitivity detection set-up](/preview/png/8041531.png)
چکیده انگلیسی
A series of granite samples (Grimsel and Ãspö) enriched by sorption with natU (10â3Â M, 10â4Â M, 10â5Â M in solution) and La (10â3Â M, 10â4Â M in solution) has been scanned by PIXE over a surface of 1920Â ÃÂ 1920Â mm2 together with non-enriched Grimsel and Ãspö granites and a glass standard. An assessment of minimum detection limits, MDL's, for several elements has been performed with the use of standard materials. Due to mapping and the high sensitivity of the new AGLAE detection system, U levels around 30Â ppm can be detected from the whole PIXE spectrum (one low energy detector and four summed filtered detectors) while U reach grains, inhomogeneously distributed over the surface can be clearly identified through the multi elemental maps and analyzed separately. Even the nominally enriched samples have La levels below the MDL, probably because precipitation of the element (and not adsorption) mostly took place, and precipitates were eliminated after surface cleaning carried out before PIXE analyses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 332, 1 August 2014, Pages 245-250
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 332, 1 August 2014, Pages 245-250
نویسندگان
Alessandro Zucchiatti, Ursula Alonso, Quentin Lemasson, Tiziana Missana, Brice Moignard, Claire Pacheco, Laurent Pichon, Sandra Camarena de la Mora,