NanoLab/NSF NUE/Bumm

Laue Conditions

l**a****1****∙∆****k **= 2*πυ*1 **a****2****∙∆****k **= 2*πυ*2

l**a****3****∙∆****k **= 2*πυ*3

l

Each of the above describes a cone in reciprocal space about the lattice vectors *a*1, *a*2, and *a*3.

nthe
*υ*i are
integers

When a reciprocal lattice point intersects this cone the diffraction condition is met, this is generally called the Ewald sphere.