Bragg diffraction conditions: 2dsinθ = nλ
to meet, since the wave of phase matches, because the amplitude of the wave increases. Substance by creating a crystal having a specific regularity, respectively, can determine the type of crystals from the pattern of the diffraction in the X-ray diffraction. In addition, other than the identification of the crystals, it can also be determined good or bad and the orientation of the crystalline. It showed the overall view of the XRD device Fig.2-2-1. The left part is the body, it does control and analysis of measurement in the right PC.