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Introduction to Neutron and X-Ray Scattering - Spallation Neutron ...

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<strong>Scattering</strong> Geometry & Notation<br />

k i<br />

Q<br />

Q x<br />

Q z<br />

k f<br />

Wave-Vec<strong>to</strong>r: Q = k f – k i<br />

Reflectivity:<br />

Q x= Q y = 0<br />

Q z= (4���)sin� i

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