A facile method to compare EFTEM maps obtained from materials changing composition over time
Di Benedetto, Cristiano
Lentijo Mozo, Sergio
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Online Publication Date2015-10-31
Print Publication Date2015-12
Permanent link to this recordhttp://hdl.handle.net/10754/583301
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AbstractEnergy Filtered Transmission Electron Microscopy (EFTEM) is an analytical tool that has been successfully and widely employed in the last two decades for obtaining fast elemental maps in TEM mode. Several studies and efforts have been addressed to investigate limitations and advantages of such technique, as well as to improve the spatial resolution of compositional maps. Usually, EFTEM maps undergo post-acquisition treatments by changing brightness and contrast levels, either via dedicated software or via human elaboration, in order to maximize their signal-to-noise ratio and render them as visible as possible. However, elemental maps forming a single set of EFTEM images are usually subjected to independent map-by-map image treatment. This post-acquisition step becomes crucial when analyzing materials that change composition over time as a consequence of an external stimulus, because the map-by-map approach doesn't take into account how the chemical features of the imaged materials actually progress, in particular when the investigated elements exhibit very low signals. In this article, we present a facile procedure applicable to whole sets of EFTEM maps acquired on a sample that is evolving over time. The main aim is to find a common method to treat the images features, in order to make them as comparable as possible without affecting the information there contained. Microsc. Res. Tech. 78:1090–1097, 2015. © 2015 Wiley Periodicals, Inc.
CitationA facile method to compare EFTEM maps obtained from materials changing composition over time 2015:n/a Microscopy Research and Technique
- Optimization of EFTEM image acquisition by using elastically filtered images for drift correction.
- Authors: Heil T, Kohl H
- Issue date: 2010 Jun
- EFTEM assistant: a tool to understand the limitations of EFTEM.
- Authors: Lozano-Perez S, Titchmarsh JM
- Issue date: 2007 Apr-May
- Elemental maps from EFTEM images using two different background subtraction models.
- Authors: Quintana C, Lechaire JP, Bonnet N, Risco C, Carrascosa JL
- Issue date: 2001 Apr 15
- Three-dimensional chemical mapping by EFTEM-TomoJ including improvement of SNR by PCA and ART reconstruction of volume by noise suppression.
- Authors: Messaoudi C, Aschman N, Cunha M, Oikawa T, Sorzano CO, Marco S
- Issue date: 2013 Dec
- Automated spatial drift correction for EFTEM image series.
- Authors: Schaffer B, Grogger W, Kothleitner G
- Issue date: 2004 Dec