Question

Why diffraction pattern obtained in reciprocal lattice instead of direct lattice?

Answer 1

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The reciprocal lattice represents the Fourier transform of another lattice (usually a Bravais lattice). ... In neutron and X-ray diffraction, due to the Laue conditions, the momentum difference between incoming and diffracted X-rays of a crystal is a reciprocal lattice vector.

Answer 2

The reciprocal lattice represents the Fourier transform of another lattice (usually a Bravais lattice). ... In neutron and X-ray diffraction, due to the Laue conditions, the momentum difference between incoming and diffracted X-rays of a crystal is a reciprocal lattice vector.