Topic > X-ray diffraction (XRD) and its significance for medicine...

X-ray diffraction (XRD) is an analytical method that provides information on the intensity of X-rays relative to the scattering angle of the substance . This characteristic is unique to each material. Therefore it is possible to identify the unknown material by comparing the XRD pattern with the standard XRD pattern3. As for the standard, the crystalline phases and diffraction pattern of approximately 50,000 individual inorganic components and 25,000 organic components are collected and stored on magnetic media 5. The history of X-ray diffraction begins at the beginning of the 20th century. At that time, it was strongly believed that crystals were contained in many repeating blocks and that each repeating unit consisted of a constant amount of number. This concept can be demonstrated using density, atomic numbers, and Avogadro's number 1. The X-ray diffraction experiment is conducted by Friedrich and Knipping for the first time using copper sulfate crystals. Performing the experiment, they collect the diffraction pattern of the crystal and state that the X-rays must be electromagnetic radiation 2. In 1912, William Lawrence Bragg and his fa...