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Powder Diffraction - Spallation Neutron Source

Powder Diffraction - Spallation Neutron Source

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Why do we do powder diffraction?<br />

Learn where the atoms are (single crystals are better for this, when<br />

available)<br />

Determine the phase(s) in a sample<br />

Measure lattice constants<br />

Quantify the components of a mixture<br />

Learn about physical specimen characteristics such as stress, preferred<br />

orientation or crystallite sizes<br />

Occupancies of elements amongst crystallographic sites<br />

4

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