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Broad spectrum element-specific X-ray imaging
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DOI：10.1016/j.ndteint.2003.09.012.png)
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In this article element-specific mapping using a broad-spectrum laboratory based X-ray source is reported. Element-specific and element-exempt images of silver nitrate and di-hydrated barium chloride have been obtained from raw images collected either side of the K-edges for silver and barium. The informed positioning of filters between the source and sample narrowed the X-ray spectra, thereby enhancing the final images. For barium. samples with a barium area density of less than 8 X 10(-5) g mm(-2) have been analysed. The system used here can be employed for mapping the distribution of elements from the middle of the second row transition metals to the light lanthanides. (C) 2003 Elsevier Ltd. All rights reserved.
Keyword:
X-ray imaging
element-specific imaging
X-ray absorption
elemental mapping
non-destructive testing
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