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Rigaku nano3DX is a true X-ray microscope (XRM) with ultra-wide field of view, 25X larger volume than comparable systems, and three X-ray wavelengths for different matrices.Read more...
HyPix-3000 is a next-generation two-dimensional hybrid pixel array semiconductor detector designed specifically to meet the needs of the home lab diffractionist.Read more...
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Polymers and fibers
SAXS can complement wide angle X-ray scattering (WAXS) X-ray diffraction measurements for a better understanding of the relationship of processing to material properties. The angular region examined in a SAXS experiment is typically from several hundredths of a degree to a few degrees 2θ. This small-angle region contains information about structures having large d-spacings (up to ~600 Å with pinhole optics).
Small-angle X-ray scattering measurements can provide the following information:
- Lamellar repeat distance: The distance from the center of one bilayer to the center of its neighbor, which includes the thickness of associated water layers.
- Radius of gyration: The first moment of the scattering center distribution function.
- Particle size and shape: from Guinier's and Porod's Laws.
- Large-scale structure and long-range order: distances between similar structures.
This technique has been used extensively in polymer industries to characterize the morphological effects of drawing, rolling, and annealing on mechanical properties.
The fiber is oriented vertically.
Samples for small-angle X-ray scattering include:
- Polymers and fibers (e.g. textile yarns)
- Wood products
- Detergents and surfactants
- Lipids and membranes
- Liquid crystals
The S-MAX3000 pinhole SAXS camera design is available with a choice of conventional or high brilliance X-ray sources. A 3-meter, fully evacuated camera length provides both high intensity and high resolution. Coupled with a fully integrated 2-dimensional multi-wire proportional counter, the system is capable of making highly sensitive measurements from both isotropic and anisotropic materials. A wide range of sample stage attachments provide maximum flexibility in controlling environmental sample conditions during measurement. Read more...