Could someone please explain what reciprocal space means in the context of of x-ray diffraction of a crystal lattice?


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The unit cell space and reciprocal space are fourier transforms of each other. The unit cell indicates the stacking space between crystal elements. The reciprocal space is a similar kind of vectorial representation of the diffracted X-rays. The following reference explains it quite well, although it is not a simple concept. Unless you are smarter than me, you may have to read it 2 or 3 times to 'get it'.

Reciprocal Lattices and Diffraction


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