Unit cell dimensions are calculated from X-ray diffraction spectra using Bragg's law, making this a matter of common knowledge and standard crystallographic practice.
The claim states a fundamental, textbook relationship in crystallography regarding the determination of unit cell dimensions from X-ray diffraction data via Bragg's law. While standard physical principles like this often do not require specialized citations, multiple retrieved papers explicitly rely on or discuss determining lattice parameters and crystal structures from X-ray diffraction data, supporting the claim.