Powder diffraction

Powder diffraction is a scientific technique using X-Ray or neutron diffraction of powdered samples for structural characterisation of materials.

Related Topics:
X-Ray - Neutron - Diffraction

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Diffraction from a microcrystalline powdered sample differs from that from a single crystal because -ideally- the crystallites are randomly oriented, and it is thus not possible to see individual diffraction spots as in single crystal X-ray crystallography. Instead one observes rings of diffracted X-ray intensity. In practice the randomness is often incomplete and spotty rings will be observed. To promote randomization the sample is often rotated during the exposure time.

Related Topics:
Microcrystalline - Crystal - X-ray crystallography

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