Journal Article

PUBDB-2016-05391

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Non-negative matrix factorization for the near real-time interpretation of absorption effects in elemental distribution images acquired by X-ray fluorescence imaging

Alfeld, M. (Corresponding author)Extern* ; Wahabzada, M.Extern* ; Bauckhage, C. ; Kersting, K. ; Wellenreuther, G.XFEL.EU* ; Barriobero-Vila, P. ; Requena, G.Extern* ; Boesenberg, U.XFEL.EU*DESY* ; Falkenberg, G.DESY*

2016
IUCr Chester

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Please use a persistent id in citations: doi:10.1107/S1600577515023528

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 $\alpha$+$\beta$ 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 $\alpha$ and $\beta$, 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.

Note: (c) International Union of Crystallography. Post referee full text in progress.

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Contributing Institute(s):

1. Experimentebetreuung PETRA III (FS-PE)
2. DOOR-User (DOOR)

Research Program(s):

1. 6215 - Soft Matter, Health and Life Sciences (POF3-621) (POF3-621)
2. 6G3 - PETRA III (POF3-622) (POF3-622)
3. CALIPSO - Coordinated Access to Lightsources to Promote Standards and Optimization (312284) (312284)

Experiment(s):

1. PETRA Beamline P06 (PETRA III)

Appears in the scientific report 2016

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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