EELS at very high energy losses

MacLaren, I. , Annand, K. J., Black, C. and Craven, A. J. (2018) EELS at very high energy losses. Microscopy, 67(suppl1), i78-i85. (doi:10.1093/jmicro/dfx036) (PMID:29036593)

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Abstract

Electron energy-loss spectroscopy (EELS) has been investigated in the range from 2 to >10 keV using an optimized optical coupling of the microscope to the spectrometer to improve the high loss performance in EELS. It is found that excellent quality data can now be acquired up until about 5 keV, suitable for both energy loss near edge structure (ELNES) studies of oxidation and local chemistry, and potentially useful for extended energy loss fine structure (EXELFS) studies of local atomic ordering. Examples studied included oxidation in Zr, Mo and Sn, and the ELNES and EXELFS of the Ti-K edge. It is also shown that good quality electron energy-loss spectroscopy can even be performed for losses above 9.2 keV, the energy loss at which the collection angle becomes ‘infinite’, and this is demonstrated using the tungsten L3 edge at about 10.2 keV.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Craven, Professor Alan and Annand, Ms Kirsty and MacLaren, Dr Ian
Authors: MacLaren, I., Annand, K. J., Black, C., and Craven, A. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Microscopy
Publisher:Oxford University Press
ISSN:2050-5698
ISSN (Online):2050-5701
Published Online:21 September 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Microscopy 67(suppl_1): i78-i85
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
642131Doctoral Training Grant 2013 - 2017Mary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/L50497X/1RSI - RESEARCH STRATEGY & INNOVATION