ABSTRACT
This chapter describes the principle of Laue method, along with how the crystal orientation can be determined. The Laue method is mainly used to determine the orientation of single crystals. In the Laue method, a white X-rays beam is made to fall on a stationary single crystal. The Laue method is the oldest of the X-ray diffraction methods, in which a collimated beam of continuous spectrum falls on a stationary crystal. The Laue method is useful for both the determination of crystal orientation and the assessment of crystal quality. Laue method is the only X-ray diffraction technique that utilizes a white radiation consisting of many wavelength components. This is because the materials to be analyzed are single crystals. The Laue method has two different configurations, depending on the relative locations of X-ray source, crystal, and film: transmission Laue method and back reflection Laue method. The interpretation of back-reflection Laue patterns is facilitated by using the Greninger chart.
