Small and wide angle X-ray diffraction shines a monochromatic X-ray beam through a sample and measures the diffracted radiation at small and wide angles. Small angle X-ray diffraction can be used to determine the size of repeating variations in electron density in a sample, in the range of 10-200 Å. This corresponds to the repeating distance between layers in crystals and liquid crystals, allowing the determination of the unit cell size. Wide angle X-ray diffraction shows the diffraction by structures in the range 3-5 Å, allowing the distinction between a crystalline and amorphous/liquid crystalline sample.

Small and Wide Angle X-Ray Scattering. Kratky compact camera with line collimation (slit focus), equipped with two linear Mbraun detectors (small and wide angle). Two different temperature controlled sample stages (0-70 °C or 25-300 °C) can be used. Powder (semi-solid/solid) or capillary (liquid) sample holders, as well as a flow-through capillary sample holder, are available.

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