کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1678635 1009950 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantitative amplitude and phase contrast imaging in a scanning transmission X-ray microscope
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Quantitative amplitude and phase contrast imaging in a scanning transmission X-ray microscope
چکیده انگلیسی

Phase contrast in X-ray imaging provides lower radiation dose, and dramatically higher contrast at multi-keV photon energies when compared with absorption contrast. We describe here the use of a segmented detector in a scanning transmission X-ray microscope to collect partially coherent bright field images. We have adapted a Fourier filter reconstruction technique developed by McCallum, Landauer and Rodenburg to retrieve separate, quantitative maps of specimen phase shift and absorption. This is demonstrated in the imaging of a germanium test pattern using 525eV soft X-rays.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 107, Issue 8, August 2007, Pages 644–655
نویسندگان
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