Abstract
AbstractWithin neutron imaging, different methods have been developed with the aim to go beyond the conventional contrast modalities, such as grating interferometry. Existing grating interferometers are sensitive to scattering in a single direction only, and thus investigations of anisotropic scattering structures imply the need for a circular scan of either the sample or the gratings. Here we propose an approach that allows assessment of anisotropic scattering in a single acquisition mode and to broaden the range of the investigation with respect to the probed correlation lengths. This is achieved by a far-field grating interferometer with a tailored 2D-design. The combination of a directional neutron dark-field imaging approach with a scan of the sample to detector distance yields to the characterization of the local 2D real-space correlation functions of a strongly oriented sample analogous to conventional small-angle scattering. Our results usher in quantitative and spatially resolved investigations of anisotropic and strongly oriented systems beyond current capabilities.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy
Reference69 articles.
1. Anderson, I. S. et al. Neutron imaging and applications. In Neutron Scattering Applications and Techniques (Springer, Boston, MA, 2009).
2. Kardjilov, N., Manke, I., Woracek, R., Hilger, A. & Banhart, J. Advances in neutron imaging. Mater. Today 21, 652–672 (2018).
3. Boillat, P. et al. In situ observation of the water distribution across a PEFC using high resolution neutron radiography. Electrochem. commun. 10, 546–550 (2008).
4. Kardjilov, N. et al. Three-dimensional imaging of magnetic fields with polarized neutrons. Nat. Phys. 4, 399–403 (2008).
5. Carminati, A. et al. Dynamics of soil water content in the rhizosphere. Plant Soil 332, 163–176 (2010).
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献