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Grazing Incidence Small Angle Neutron Scattering from Structures below an Interface
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. (Material physics)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. (Material physics)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. (Material physics)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. (Material physics)
2017 (English)In: Journal of applied crystallography, ISSN 0021-8898, E-ISSN 1600-5767, Vol. 50, no 4, 1066-1074 p.Article in journal (Refereed) Published
Abstract [en]

Changes of scattering are observed as the grazing angle of incidence of an incoming beam increases and probes different depths in samples. A model has been developed to describe the observed intensity in grazing incidence small angle neutron scattering (GISANS) experiments. This includes the significant effects of instrument resolution, the sample transmission, which depends on both absorption and scattering, as well as the sample structure. The calculations are tested with self-organised structures of two colloidal samples with different size particles that were measured on two different instruments. The model allows calculations for various instruments with defined resolution and can be used to design future improved experiments. The possibilities and limits of GISANS for different studies are discussed using the model calculations. 

Place, publisher, year, edition, pages
2017. Vol. 50, no 4, 1066-1074 p.
Keyword [en]
GISANS, Solid/liquid interface, colloidal particles
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-322577DOI: 10.1107/S1600576717007518OAI: oai:DiVA.org:uu-322577DiVA: diva2:1098773
Funder
Swedish Research Council, 621-2012-4382
Available from: 2017-05-26 Created: 2017-05-26 Last updated: 2017-08-14

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GISANS_Nouhi_2017(1931 kB)40 downloads
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Nouhi, ShirinHellsing, Maja S.Kapaklis, VassiliosRennie, Adrian R.
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