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Terra Incognita: Spectra from Edges and Elements not in the EELS Atlas

Published online by Cambridge University Press:  02 July 2020

J. A. Former  and
E. C. Buck
J. A. Former
Affiliation:
Argonne National Laboratory, Argonne, IL, 60439
E. C. Buck
Affiliation:
Argonne National Laboratory, Argonne, IL, 60439
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The EELS Core-Loss Atlas, like a road map, serves as an essential guide for practitioners of electron energy loss spectroscopy (EELS). Even the best maps will be incomplete, however, and one may need to plot a course by other means. Our work with materials from the nuclear fuel cycle has required new spectral lines, and even new elements, to be charted. The actinides and technetium, for instance, have important spectral features above 2 keV. The EELS technique has not often been used for detecting lines above about 2 keV because of the rapidly diminishing differential cross sections for these higher energy transitions. However, as instrumentation has progressed from scanning to parallel to CCD-array detection, statistical limitations on the high energy data have been improved by orders of magnitude. Also, in some cases, the notion of higher energy lines as “weak” is excessively pessimistic.

Type
Microscopy and Microanalysis in the “Real World”
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 532 - 533
Copyright
Copyright © Microscopy Society of America

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References

References:

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6. This work was sponsored by the U.S. Department of Energy, Office of Fissile Materials Disposition, under contract W-31-109-ENG-38.Google Scholar