Compact x-ray microtomography system for element mapping and absorption imaging
نویسندگان
چکیده
منابع مشابه
Compact x-ray microtomography system for element mapping and absorption imaging.
We have designed and built a compact x-ray microtomography system to perform element mapping and absorption imaging by exploiting scanning fluorescence tomography and full-field transmission microtomography, respectively. It is based on a low power microfocus tube and is potentially appropriate for x-ray diagnostics in space. Full-field transmission tomography yields the three-dimensional inner...
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shapes. destructively and with spatial resolution which can approach that of optical microscopy (typically, no After presenting the author’s perspective of the better than 1 mm in samples whose cross-sectional development of microtomography, imaging, X-ray diameter is on the order of 1 mm, and 10 mm for attenuation, and the physical concepts underlying 10 mm specimens). First, X-ray computed to...
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In an effort to understand the physical and rheological behavior as well as the mechanical and sensory attributes of foods, processing focus and emphasis have shifted to the microstructure level. Microstructure elements such as air bubbles or cells, starch granules, protein assemblies and food biopolymer matrices contribute greatly to the identity and quality of foods (Aguilera, 2005). The micr...
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In this study, a new technique for three-dimensional imaging of biofilm within porous media using X-ray computed microtomography is presented. Due to the similarity in X-ray absorption coefficients for the porous media (plastic), biofilm and aqueous phase, an X-ray contrast agent is required to image biofilm within the experimental matrix using X-ray computed tomography. The presented technique...
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The detection of chemical mapping with a spatial resolution of 30 nm has been achieved with a scanning transmission X-ray microscope at the Shanghai Synchrotron Radiation Facility. For each specimen, two absorption images were scanned separately with energies E(1) and E(2): E(1) was focused on the absorption edge of the chosen element and E(2) was focused below the edge. A K-edge division metho...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 2007
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.2751094