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Title
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Tomographic spectroscopic imaging; an experimental proof of concept
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Author
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Abstract
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| Recording the electron energy loss spectroscopy data cube with a series of energy filtered images is a dose inefficient process because the energy slit blocks most of the electrons. When recording the data cube by scanning an electron probe over the sample, perfect dose efficiency is attained; but due to the low current in nanoprobes, this often is slower, with a smaller field of view. In W. Van den Broek et al. [Ultramicroscopy, 106 (2006) 269], we proposed a new method to record the data cube, which is more dose efficient than an energy filtered series. It produces a set of projections of the data cube and then tomographically reconstructs it. In this article, we demonstrate these projections in practice, we present a simple geometrical model that allows for quantification of the projection angles and we present the first successful experimental reconstruction, all on a standard post-column instrument. |
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Language
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English
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Source (journal)
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Ultramicroscopy. - Amsterdam
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Publication
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Amsterdam
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2009
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ISSN
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0304-3991
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Volume/pages
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109
:4
(2009)
, p. 296-303
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ISI
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000265345400003
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Full text (Publisher's DOI)
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