Lens Less Scanning X-ray Microscopy with SAXS and WAXS contrast
| Autor: | Cinzia Giannini, Davide Altamura, Brunella Maria Aresta, Teresa Sibillano, Dritan Siliqi, Liberato De Caro |
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| Rok vydání: | 2013 |
| Zdroj: | Inorganic Micro-and Nanomaterials Synthesis and Characterization, edited by Dibenedetto, Angela / Aresta, Michele, pp. 137–156, 2013 info:cnr-pdr/source/autori:Cinzia Giannini, Davide Altamura, Brunella Maria Aresta, Teresa Sibillano, Dritan Siliqi, Liberato De Caro/titolo:Lens Less Scanning X-ray Microscopy with SAXS and WAXS contrast/titolo_volume:Inorganic Micro-and Nanomaterials Synthesis and Characterization/curatori_volume:Dibenedetto, Angela %2F Aresta, Michele/editore:/anno:2013 |
| Popis: | Independently of the type of source (visible light, X-rays, electrons) a microscope generally allows to produce enlarged images of the illuminated sample. In themost popular (optical or electron) microscopy techniques, this results in the direct imaging of the investigated sample or a portion of it. As a consequence, all the observed details in the image are assumed to represent actual structures of the sample. In contrast, diffraction- based microscopy provides indirect (Fourier space) images of the sample, so that retrieving sample structure is in general not straightforward, but important, highlydetailed information (e.g., atomic structure) can be obtained, depending on radiation wavelength. In this chapter we will briefly introduce a quite recent microscopy technique, based on X-ray diffraction, known as scanning X-ray microscopy with small angle (SAXS) and wide angle (WAXS) contrast.We will describe the basic principles behind these techniques and show a couple of applications to the nano-bio world. Indeed, the high penetration depth, high achievable resolution, and the basically nondestructive character of X-rays are among the main advantages which make X-ray techniques extremely useful for the study of nanostructures. |
| Databáze: | OpenAIRE |
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