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Accessory for MCR:
Rheo-SANS/SAXS

  • Accessory for “Structure Analysis and Rheo-Optics”
  • For nanostructure analysis: Small-angle scattering
  • Temperature range from -50 °C to 300 °C
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The increasing interest in nanotechnology has led to increased use of synchrotron beam lines during recent years. Apart from static nanostructure analysis, a further area of interest for material research is the influence of shear. To support this field of research Anton Paar developed a specialized measuring setup that allows you to use the renowned MCR rheometer technology in combination with instruments for Small-angle X-ray Scattering (SAXS) and Small-angle Neutron Scattering (SANS) and thus enables detailed structure analysis under controlled shear conditions. With the Rheo-SANS/SAXS accessory from Anton Paar all rheological test types are possible with simultaneous and real-time small-angle scattering. It consists of a radiolucent convection temperature device and specialized measuring system for all kinds of samples from liquids to powders and even films.

Key features

SAXS and SANS measurements combined with all rheological test types in a temperature range from -50 °C to 300°C

SAXS and SANS measurements combined with all rheological test types in a temperature range from -50 °C to 300°C

The Rheo SANS/SAXS accessory combines a fully functional MCR rheometer with SAXS and SANS for measurements at temperatures from -50 °C up to 300 °C. You can perform all rheological test types with simultaneous and real-time small-angle scattering. Various beam positions with respect to the shear flow provide scattering information at different planes. Available measuring geometries are concentric-cylinder (max. cup diameter 50 mm) and parallel-plate (up to 50 mm diameter) systems made from different material, as well as DMA and extensional fixtures (SRF, SCF, UXF, SER). For extraordinary installation conditions, e.g. limited space in the beamline, special rheometer types are available. Also, individual measurement setups designed and adapted to your specific needs can be implemented on request by our experts in Graz (Austria).

SAXS meets rheology for shear-induced nanostructure analysis

SAXS meets rheology for shear-induced nanostructure analysis

Small-angle X-ray Scattering (SAXS) and Wide-angle X-ray Scattering (WAXS) are powerful methods for the nanoscale characterization of density differences in all kinds of materials (e.g. solids, liquids, plastics, macromolecules…). Gain information about the shape and size of macromolecules, characteristic distances of partially ordered materials, pore sizes, and other data. Rheology combined with SAXS techniques enables investigations of shear-induced nanostructure changes in complex samples – from flow- and temperature-induced crystallization to shear banding and many more. All irradiated parts are made of polycarbonate as standard; other materials are available on request (e.g. polyimide). The irradiated parts can be exchanged in less than a minute.

SANS and GISANS – characterization on the nanoscale

SANS and GISANS – characterization on the nanoscale

Small-angle Neutron Scattering (SANS) is a powerful method for the nanoscale characterization of all kinds of materials. Neutrons are scattered by nuclei or by the magnetic moment of unpaired electron spinning in magnetic samples. Unlike an X-ray photon with a similar wavelength which interacts with the electron cloud, neutrons interact with the nucleus itself. Since the neutron is an electrically neutral particle, it deeply penetrates and therefore probes the bulk material. A special measuring setup for grazing-incidence small-angle neutron scattering (GISANS) or neutron reflectometry for thin film characterization can also be integrated.

Irradiated parts are made of titanium as standard; other materials are available on request (e.g. quartz glass). The irradiated parts can be exchanged in less than a minute.

Unique measuring technology for complex applications

Unique measuring technology for complex applications

The unique Rheo-SAXS/SANS setup from Anton Paar is used at facilities all around the world for sophisticated state-of-the-art research and development. SAXS and SANS both require special sources for X-rays (synchrotrons) or neutrons (reactor or spallation source), which are typically only available at large research facilities.

Typical applications:

  • Characterization of polymer solutions, melts, films
  • Life science
  • Determination of (shear-induced) nanoscale structures in colloids of all types
  • Flow- and temperature-induced crystallization and shear banding
  • Information about the shape and size of macromolecules
  • Characteristic distances of partially ordered materials and pore size
  • Studies of proteins at physiological conditions
  • Time-resolved studies of reaction kinetics

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The Anton Paar quality in service and support:
  • More than 350 manufacturer-certified technical experts worldwide
  • Qualified support in your local language
  • Protection for your investment throughout its lifecycle
  • 3-year warranty
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