X-Ray Diffraction (XRD) and Its Meaning to the Medical World

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X-ray diffraction (XRD) is an analytical method which provides the information about intensity of x-ray versus the angle of scattering of the substance. This characteristic is unique for each material. Therefore one can identify the unknown material by comparing the XRD pattern with the standard XRD pattern3. For the standard, crystalline phases and diffraction pattern of around 50,000 inorganic and 25,000 organic single components are collected and stored on magnetic media 5. The history of the x-ray diffraction begins in the early 20th century. At the time, there is a strong believed that crystals are contained many repeating block and each repeating units consist of constant amount of number. This concept is able to prove by using density, atomic numbers, and Avogadro's number 1. The x-ray diffraction experiment is conducted by Friedrich and Knipping for the first time by using copper sulfate crystal. By performing the experiment, they collect the diffraction pattern of the crystal and state that x-ray must be electromagnetic radiation 2. In 1912, William Lawrence Bragg and his fa...

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