Sample Environment Systems for Fluids Including Gases, Liquids and Complex Fluids (FLUCO)

We have a temperature/magnetic fields/pressure workshop where equipment can be tested and integrated.

In addition, we are working to establish workshops providing soft-matter cells and rheology, additional lab methods, and equipment for a variety of sample preparations.

A number of front-edge solutions are readily available on the market, and we will make use of these.

They include ”neutron friendly” gas, vapour, liquid cells, rotating cylinder, liquid flow, humidity cells, liquid surfaces & high vacuum.

Development activities

In order to enable maximal impact for the users of the ESS source and instruments, we are developing a range of new sample-environment solutions. These include the following.

• Novel sample cells (gas adsorption, chemical reactions, humidity, free surfaces, rheometer, flow-through for bioSANS).
• Multiple process-handling systems (gas, vapour, liquids).
• RheoSANS capabilities.
• Set-ups for simultaneous measurements using neutron-scattering and light-scattering techniques, such as dynamic light scattering, SLS, DWS, and Raman spectroscopy.
• In operando techniques: the capability of performing neutron scattering during e.g. the progression of chemical processes or the operation of fuel cell elements or Li ion batteries.
• Capabilities for multi-parameter experiments, some of them linked to the Temperatures and Fields and Pressure and Mechanical Processing platforms.

Collaborations

We are involved in the FlexiProb project, lead by Bielefeldt University, Technische Universität Darmstadt and Technische Universität München. This is a BMBF-funded sample-environment project, and our role is to ensure standardisation and integratability, making it possible to use this equipment at ESS.

In-Kind Partners

University of Tartu, Estonia, has developed a Laser-Pump-Probe method for the investigation of light-induced processes, such as photosynthesis. The final acceptance test took place in November 2015. The equipment will be used mainly on time-of-flight spectrometers and small-angle neutron scattering (SANS) instruments, and was already successfully commissioned on IN5 at the ILL. The figure above depicts this set-up with a sample of purple photosynthetic bacteria. Read more here.

Roskilde University have developed a 5-position SANS magazine with independent temperature control for the 5 positions.

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