Micro X-ray Fluorescence Imaging without Scans: Toward an Element-Selective Movie
- 5 December 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 75 (2) , 355-359
- https://doi.org/10.1021/ac025793h
Abstract
Micro X-ray fluorescence imaging is a promising method for obtaining positional distribution on specific elements in a nondestructive manner. So far, the technique has usually been performed by a 2D positional scan of a sample against a collimated beam. However, the total measuring time can become quite long, since a number of scanning points are needed in order to obtain a high-quality image. The present report discusses a completely different way of performing imaging of elements much more quickly. A combination of grazing-incidence geometry using a rather wide beam and parallel optics for detecting X-rays can produce an X-ray fluorescence image with ∼1 M pixels and with ∼20-μm resolution in 1−2 min or less. The technique has the potential to open up new frontiers in X-ray imaging, particularly in element-selective movie applications.Keywords
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