کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1241382 1495736 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of confocal micro X-ray fluorescence instrument using two X-ray beams
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Development of confocal micro X-ray fluorescence instrument using two X-ray beams
چکیده انگلیسی

A new confocal micro X-ray fluorescence instrument was developed. This instrument has two independent micro X-ray tubes with Mo targets. A full polycapillary X-ray lens was attached to each X-ray tube. Another half polycapillary lens was attached to a silicon drift X-ray detector (SDD). The focal spots of the three lenses were adjusted to a common position. The effects of the excitation of two X-ray beams were investigated. The instrument enabled highly sensitive three-dimensional X-ray fluorescence analysis. We confirmed that the X-ray fluorescence intensity from the sample increased by applying the two independent X-ray tubes in confocal configuration. Elemental depth profiling of black wheat was demonstrated with the result that each element in the surface coat of a wheat grain showed unique distribution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 62, Issues 6–7, July 2007, Pages 549–553
نویسندگان
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