In:
Journal of Synchrotron Radiation, International Union of Crystallography (IUCr), Vol. 23, No. 2 ( 2016-03-01), p. 579-589
Abstract:
Elemental distribution images acquired by imaging X-ray fluorescence analysis can contain high degrees of redundancy and weakly discernible correlations. In this article near real-time non-negative matrix factorization (NMF) is described for the analysis of a number of data sets acquired from samples of a bi-modal α+β Ti-6Al-6V-2Sn alloy. NMF was used for the first time to reveal absorption artefacts in the elemental distribution images of the samples, where two phases of the alloy, namely α and β, were in superposition. The findings and interpretation of the NMF results were confirmed by Monte Carlo simulation of the layered alloy system. Furthermore, it is shown how the simultaneous factorization of several stacks of elemental distribution images provides uniform basis vectors and consequently simplifies the interpretation of the representation.
Type of Medium:
Online Resource
ISSN:
1600-5775
DOI:
10.1107/S1600577515023528
DOI:
10.1107/S1600577515023528/hf5308sup1.pdf
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2016
detail.hit.zdb_id:
2021413-3
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