Why X-ray diffraction systems ?
X-ray diffraction (XRD) is an analytical technique looking at X-ray scattering from crystalline materials. Each material produces a unique X-ray “fingerprint” of X-ray intensity versus scattering angle that is characteristic of it’s crystalline atomic structure. Qualitative analysis is possible by comparing the XRD pattern of an unknown material to a library of known patterns. XRD is complementary to spectroscopic techniques like X-ray fluorescence (XRF). For example, XRF can tell you that a material is composed of iron and sulfur, but XRD can tell you that both FeS2 and elemental Fe are present. Further, since XRD works with any crystalline solid, there is almost no limit to the types of materials that can be studied. What X-ray diffraction systems ? About 95% of all solid materials can be described as crystalline. When X-rays interact with a crystalline substance (phase), one gets a diffraction pattern. The X-ray diffraction pattern of a pure substance is, therefore, like a fingerpri