Quantum Theory of X-Ray Reflexion

IN a memoir which appeared in 1926, Laue1 showed by purely classical reasoning that the X-rays scattered by elastic solid waves of thermal origin in a crystal have the frequency v ± v*, v being the primary X-ray frequency and v* the frequency of the elastic waves. He evaluated Iv and Iv±v*, these being respectively the intensities of the reflexion and the… CONTINUE READING