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Accessing self-diff...
Accessing self-diffusion on nanosecond time and nanometre length scales with minute kinetic resolution
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- Beck, Christian (författare)
- Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany; Institut Max von Laue–Paul Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France,University of Tübingen
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- Roosen-Runge, Felix (författare)
- Malmö universitet,Malmö University,Lund University,Lunds universitet,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Institutionen för biomedicinsk vetenskap (BMV),Biofilms Research Center for Biointerfaces,Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22 100 Lund, Sweden
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- Grimaldo, Marco (författare)
- Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany; Institut Max von Laue–Paul Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France,Institut Laue Langevin
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- Zeller, Dominik (författare)
- Institut Max von Laue–Paul Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France; Université Grenoble Alpes, CNRS, LiPhy, Grenoble, France,University Grenoble Alpes
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- Peters, Judith (författare)
- Institut Max von Laue–Paul Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France; Université Grenoble Alpes, CNRS, LiPhy, Grenoble, France; Institut Universitaire de France, France,Institut Universitaire de France,Institut Laue Langevin
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- Schreiber, Frank (författare)
- Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
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- Seydel, Tilo (författare)
- Institut Max von Laue–Paul Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
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(creator_code:org_t)
- International Union of Crystallography (IUCr), 2024
- 2024
- Engelska 13 s.
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Ingår i: Journal of Applied Crystallography. - : International Union of Crystallography (IUCr). - 0021-8898 .- 1600-5767. ; 57:Pt 4, s. 912-924
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://mau.diva-por... (primary) (Raw object)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Neutron spectroscopy uniquely and non-destructively accesses diffusive dynamics in soft and biological matter, including for instance proteins in hydrated powders or in solution, and more generally dynamic properties of condensed matter on the molecular level. Given the limited neutron flux resulting in long counting times, it is important to optimize data acquisition for the specific question, in particular for time-resolved (kinetic) studies. The required acquisition time was recently significantly reduced by measurements of discrete energy transfers rather than quasi-continuous neutron scattering spectra on neutron backscattering spectrometers. Besides this reduction in acquisition times, smaller amounts of samples can be measured with better statistics, and most importantly, kinetically changing samples, such as aggregating or crystallizing samples, can be followed. However, given the small number of discrete energy transfers probed in this mode, established analysis frameworks for full spectra can break down. Presented here are new approaches to analyze measurements of diffusive dynamics recorded within fixed windows in energy transfer, and these are compared with the analysis of full spectra. The new approaches are tested by both modeled scattering functions and a comparative analysis of fixed energy window data and full spectra on well understood reference samples. This new approach can be employed successfully for kinetic studies of the dynamics focusing on the short-time apparent center-of-mass diffusion.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- data analysis
- quasielastic neutron spectroscopy
- self-diffusion
- single-crystal monochromators
- data analysis
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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