Abstract

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.

Details

Title
On the analysis of time-of-flight spin-echo modulated dark-field imaging data
Author
Sales, Morten 1 ; Plomp, Jeroen 2 ; Bouwman, Wim G 2 ; Tremsin, Anton S 3 ; Habicht, Klaus 4 ; Strobl, Markus 5 

 Nano-Science Center, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen Denmark; Department of Physics, Technical University of Denmark, DK-2800, Kgs. Lyngby Denmark 
 Faculty of Applied Sciences, Delft University of Technology, 2629 JB Delft The Netherlands 
 University of California at Berkeley, Space Sciences Laboratory, Berkeley 94720, California USA 
 Helmholtz-Zentrum Berlin fuer Materialen und Energie GmbH, D-14109 Berlin Germany 
 Nano-Science Center, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen Denmark; European Spallation Source ESS-AB, Science Division, SE-22100 Lund Sweden 
Publication year
2017
Publication date
Jun 2017
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2574658912
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.