W. L. Bragg 1913 derivation (Nobel 1915): coherent scattering off a crystal's parallel lattice planes at spacing d has constructive interference when the path-difference 2·d·sin(θ) equals an integer-multiple of wavelength: n·λ =…
W. L. Bragg 1913 derivation (Nobel 1915): coherent scattering off a crystal's parallel lattice planes at spacing d has constructive interference when the path-difference 2·d·sin(θ) equals an integer-multiple of wavelength: n·λ =…