On the analysis of time-of-flight spin-echo modulated dark-field imaging data

Morten Sales, Jeroen Plomp, Wim G. Bouwman, Anton S. Tremsin, Klaus Habicht, Markus Strobl*

*Corresponding author for this work

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Spin-Echo Modulated Small Angle Neutron Scattering with spatial resolution, i.e. quantitative Spin-Echo Dark Field Imaging, is an emerging technique coupling neutron imaging with spatially resolved quantitative small angle scattering information. However, the currently achieved relatively large modulation periods of the order of millimeters are superimposed to the images of the samples. So far this required an independent reduction and analyses of the image and scattering information encoded in the measured data and is involving extensive curve fitting routines. Apart from requiring a priori decisions potentially limiting the information content that is extractable also a straightforward judgment of the data quality and information content is hindered. In contrast we propose a significantly simplified routine directly applied to the measured data, which does not only allow an immediate first assessment of data quality and delaying decisions on potentially information content limiting further reduction steps to a later and better informed state, but also, as results suggest, generally better analyses. In addition the method enables to drop the spatial resolution detector requirement for non-spatially resolved Spin-Echo Modulated Small Angle Neutron Scattering.
Original languageEnglish
Book seriesJournal of Physics: Conference Series (Online)
Issue number1
Pages (from-to)012026
Number of pages10
Publication statusPublished - 2017


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