Conveners
Large scale structures
- Tobias Unruh (FAU Erlangen-Nürnberg)
Large scale structures
- Tobias Unruh (FAU Erlangen-Nürnberg)
Large scale structures
- Tobias Unruh (FAU Erlangen-Nürnberg)
We propose to upgrade and optimize NREX for studying the interaction of hydrogen with surfaces and thin film structures. The main goals of the upgrade are: (i) to increase the sensitivity and time resolution for single shot experiments by one order of magnitude compared to existing neutron techniques, with the aim to detect changes of the hydrogen concentration with a sensitivity better than...
Upgrade of KWS-1
Science Case
In the past, the exchange kinetics of polymers between different polymer micelles have been resolved using SANS. The option of selective deuteration has a huge potential to look at any exchange process in the future. Usually, one starts with two differently labelled, but otherwise structurally the same entities that by the time exchange their building blocks...
We will discuss challenges when it comes to revealing structures in life science associated with the hierarchical structure of these systems.
First we will discuss revealing the structure of lipid self assembly structures at interfaces. Here in particular we will discuss the structure formed by non-lamellar lipid liquid crystalline phases on surfaces as revealed by Grazing Incidence...
Superalloys are key materials of our modern society. They are not only used in harsh environments of power plants for energy conversion but also in aerospace or marine applications, as they combine excellent mechanical properties at high homologous temperatures with very good oxidation and corrosion resistance. To further improve the efficiency of engines, advanced superalloys with improved...
Small-angle neutron scattering (SANS) is a powerful technique for the investigation of magnetic materials, since it provides information from within the bulk of magnetic media and on the mesoscopic length scale, i.e., the size regime between a few nanometers and a few micrometers. In this talk we give an overview on recent theoretical and experimental work. This includes the study of the...
Modern materials are often effective because of their structure and many important processes and substances have significant length scales that range from nanometres to tens of micrometres. Examples are flocculation of particles during water purification, food such as emulsions and bakery products, and freeze-dried materials. The range of components and heterogeneity make the contrast...
In a wide variety of fields, the properties of a system are controlled by the structure of interfaces: e.g. electrochemical systems, corrosion, bio-membranes, catalysts. Neutron reflectometry is a fundamental tool for the investigation and characterization of those interfaces: this technique is nondestructive; its resolution is well adapted to the length-scales of interest; it probes a large...
The SANS-1MAX proposal aims both at extending the dynamical Q-range and increasing the maximal momentum transfer Q. The SANS-MAX proposal consists of two independent two subprojects. (i) The replacement of the S-bender neutron guide with an optimized version will shift the wavelength cut-off down to ~2.5 Å. (ii) The installation of a second, high-Q detector bank at short detector distances on...
In this talk, a number of key results converged from neutron scattering, rheology and dielectric relaxation spectroscopy (DRS) on the association and chain structure of supramolecular polymers from the bulk to the diluted state in the melt will be highlighted. These consist of well-defined hydrogenated (H) polymers with a polyethylene oxide (PEO) and polypropylene oxide (PPO) backbone (molar...
Magnetic nanoparticles and nanostructures reveal interesting magnetic properties and relaxation phenomena which make them relevant for sensor technology, imaging techniques, or magnetic heating, applicable to magnetic hyperthermia and thermocatalysis applications. Whereas the implementation of nanomagnetic properties into technological applications is progressing rapidly, fundamental questions...
