Quantitative elemental mapping of materials by energy-filtered imaging

Peter Crozier

doi:10.1016/0304-3991(94)00201-W

Quantitative elemental mapping of materials by energy-filtered imaging

Peter Crozier

Research output: Contribution to journal › Article › peer-review

93 Scopus citations

Abstract

The application of energy-filtered imaging to quantitative elemental mapping of materials is investigated using the newly developed Zeiss 912 TEM. This instrument is equipped with a magnetic omega filtering spectrometer and a slow-scan CCD camera for acquisition of energy-filtered images in digital form suitable for quantitative processing. The high beam current available on this machine permits elemental maps with over one million pixels of data to be acquired in reasonable time. Experimental conditions required for quantitative large-area elemental mapping are described and several approaches to data processing for quantitative analysis are compared. Concentration ratios in a NiCuCr amination catalyst were determined to within 20% accuracy in favorable cases.

Original language	English (US)
Pages (from-to)	157-174
Number of pages	18
Journal	Ultramicroscopy
Volume	58
Issue number	2
DOIs	https://doi.org/10.1016/0304-3991(94)00201-W
State	Published - May 1995

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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10.1016/0304-3991(94)00201-W

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title = "Quantitative elemental mapping of materials by energy-filtered imaging",

abstract = "The application of energy-filtered imaging to quantitative elemental mapping of materials is investigated using the newly developed Zeiss 912 TEM. This instrument is equipped with a magnetic omega filtering spectrometer and a slow-scan CCD camera for acquisition of energy-filtered images in digital form suitable for quantitative processing. The high beam current available on this machine permits elemental maps with over one million pixels of data to be acquired in reasonable time. Experimental conditions required for quantitative large-area elemental mapping are described and several approaches to data processing for quantitative analysis are compared. Concentration ratios in a NiCuCr amination catalyst were determined to within 20% accuracy in favorable cases.",

author = "Peter Crozier",

note = "Funding Information: use of the Center for HREM supported by NSF Grant DMR-9115680. Funding Information: The author would like to thank Dr. Molly McCartney, Dr. Hans de Ruijter and Paul Perkes for technical assistance and discussions. This work was supported by Arizona State University HREM Industrial Associates Program and made",

year = "1995",

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doi = "10.1016/0304-3991(94)00201-W",

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N2 - The application of energy-filtered imaging to quantitative elemental mapping of materials is investigated using the newly developed Zeiss 912 TEM. This instrument is equipped with a magnetic omega filtering spectrometer and a slow-scan CCD camera for acquisition of energy-filtered images in digital form suitable for quantitative processing. The high beam current available on this machine permits elemental maps with over one million pixels of data to be acquired in reasonable time. Experimental conditions required for quantitative large-area elemental mapping are described and several approaches to data processing for quantitative analysis are compared. Concentration ratios in a NiCuCr amination catalyst were determined to within 20% accuracy in favorable cases.

AB - The application of energy-filtered imaging to quantitative elemental mapping of materials is investigated using the newly developed Zeiss 912 TEM. This instrument is equipped with a magnetic omega filtering spectrometer and a slow-scan CCD camera for acquisition of energy-filtered images in digital form suitable for quantitative processing. The high beam current available on this machine permits elemental maps with over one million pixels of data to be acquired in reasonable time. Experimental conditions required for quantitative large-area elemental mapping are described and several approaches to data processing for quantitative analysis are compared. Concentration ratios in a NiCuCr amination catalyst were determined to within 20% accuracy in favorable cases.

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Quantitative elemental mapping of materials by energy-filtered imaging

Abstract

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