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TWO ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF THE ABSOLUTE ATOM CONCENTRATION USING ELECTRON ENERGY LOSS SPECTROSCOPY (EELS)

N. HADJI

138, VILLA 60, Cité dés Jardins, EL HADJAR, Annaba 23 200, Algerie

https://doi.org/10.1142/S021797920201316XCited by:1 (Source: Crossref)

Abstract

Two analytical techniques for the determination (within the limits of validity of the free electron model) of the absolute atom concentration (AAC) are reported in details. One of these may be useful for the determination of a AAC for chemical elements (e.g. hydrogen) which are not easy to detect. EELS is used.

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Vol. 16, No. 31

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History

Received 13 March 2002

Keywords

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Obtaining atom concentration, absolute specimen thickness, especially the local ones.

What is it about?

The described two techniques are about getting, from some materials, important information about the density and other parameters such as Fermi energy, plasmon mean free path, specimen thickness etc. and may be found to be very useful (1) in studying very small volumes of matter with, for instance, the aim of getting density-property relationships, (2) in comparative studies of, for instance, very small (e.g. nanosized) features present within the same microscope specimen ...

Why is it important?

The (local or average) specimen thickness is obtainable using EELS only. Therefore the optical refractive index is not necessary for obtaining this important parameter.

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Noureddine HADJI

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TWO ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF THE ABSOLUTE ATOM CONCENTRATION USING ELECTRON ENERGY LOSS SPECTROSCOPY (EELS)

Abstract

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