Sub-pixel correlation length neutron imaging : Spatially resolved scattering information of microstructures on a macroscopic scale
(2017) In Scientific Reports 7.- Abstract
Neutron imaging and scattering give data of significantly different nature and traditional methods leave a gap of accessible structure sizes at around 10 micrometers. Only in recent years overlap in the probed size ranges could be achieved by independent application of high resolution scattering and imaging methods, however without providing full structural information when microstructures vary on a macroscopic scale. In this study we show how quantitative neutron dark-field imaging with a novel experimental approach provides both sub-pixel resolution with respect to microscopic correlation lengths and imaging of macroscopic variations of the microstructure. Thus it provides combined information on multiple length scales. A dispersion... (More)
Neutron imaging and scattering give data of significantly different nature and traditional methods leave a gap of accessible structure sizes at around 10 micrometers. Only in recent years overlap in the probed size ranges could be achieved by independent application of high resolution scattering and imaging methods, however without providing full structural information when microstructures vary on a macroscopic scale. In this study we show how quantitative neutron dark-field imaging with a novel experimental approach provides both sub-pixel resolution with respect to microscopic correlation lengths and imaging of macroscopic variations of the microstructure. Thus it provides combined information on multiple length scales. A dispersion of micrometer sized polystyrene colloids was chosen as a model system to study gravity induced crystallisation of microspheres on a macro scale, including the identification of ordered as well as unordered phases. Our results pave the way to study heterogeneous systems locally in a previously impossible manner.
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- author
- Harti, Ralph P. ; Strobl, Markus LU ; Betz, Benedikt ; Jefimovs, Konstantins ; Kagias, Matias LU and Grünzweig, Christian
- publishing date
- 2017-03-17
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 7
- article number
- 44588
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:28303923
- scopus:85015310680
- ISSN
- 2045-2322
- DOI
- 10.1038/srep44588
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © The Author(s) 2017.
- id
- b2dc48ed-2c04-4bc0-9d69-e6b67321ae73
- date added to LUP
- 2023-11-27 09:06:01
- date last changed
- 2024-04-24 12:43:51
@article{b2dc48ed-2c04-4bc0-9d69-e6b67321ae73,
abstract = {{<p>Neutron imaging and scattering give data of significantly different nature and traditional methods leave a gap of accessible structure sizes at around 10 micrometers. Only in recent years overlap in the probed size ranges could be achieved by independent application of high resolution scattering and imaging methods, however without providing full structural information when microstructures vary on a macroscopic scale. In this study we show how quantitative neutron dark-field imaging with a novel experimental approach provides both sub-pixel resolution with respect to microscopic correlation lengths and imaging of macroscopic variations of the microstructure. Thus it provides combined information on multiple length scales. A dispersion of micrometer sized polystyrene colloids was chosen as a model system to study gravity induced crystallisation of microspheres on a macro scale, including the identification of ordered as well as unordered phases. Our results pave the way to study heterogeneous systems locally in a previously impossible manner.</p>}},
author = {{Harti, Ralph P. and Strobl, Markus and Betz, Benedikt and Jefimovs, Konstantins and Kagias, Matias and Grünzweig, Christian}},
issn = {{2045-2322}},
language = {{eng}},
month = {{03}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{Sub-pixel correlation length neutron imaging : Spatially resolved scattering information of microstructures on a macroscopic scale}},
url = {{http://dx.doi.org/10.1038/srep44588}},
doi = {{10.1038/srep44588}},
volume = {{7}},
year = {{2017}},
}