PPT-X-ray Diffraction

Guanghui Zhu Instrument Report Contents Diffraction Mechanism C onstruction of the Diffractometer Applications of XRD Data A nalysis and Explanation 2D XRD XRD Simulation Diffraction . Wave Optics. The wave nature of light is needed to explain various phenomena. Interference. Diffraction. The . particle nature of light was the basis for ray (geometric) . optics. Light waves interfere with each other much like mechanical waves do. Diffraction of light when two fingers brought close together . infront of a light source . Diffraction by razor blade when illuminated by intense blue light . “light is never known to follow . crooked passages nor to . Chapter. 36. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 36-1. Single-Slit Diffraction. 36.01 . Describe the diffraction of light waves by a narrow opening and an edge, and also describe the resulting interference pattern.. Presented by. :. Panos. Economou. P.E. . Mediterranean Acoustics Research and Development. , Cyprus. . Panagiotis. . Charalampous. . P.E. Mediterranean Acoustics Research and Development, . Cyprus. deposition . activities . . of . the . crystallographic . community . .  . John R . Helliwell. and Brian McMahon. This Session . Includes several major databases encompassing many fields of the . Grisel. Rivera Batista. Science Undergraduate Laboratory Internship Program. August 12, 2010.. Advantages of AXRD. Sensitive to:. N. eighboring elements in the periodic table.. Specific crystallographic phase.. Jonathan Cowen. Swagelok . Center for the Surface Analysis of Materials. Case School of Engineering. Case Western Reserve University. . October 27, 2014. . . Outline. X-ray Diffraction (XRD). History and background. History. 1895. Wilhelm Conrad R. ӧ. ntgen. discovered . X-rays. 1905 . Albert Einstein introduces the concept of photons (concept not accepted until 1922). 1913 . Max von . Laue, . Walter Friedrich . Diffraction of Light. Newton pointed . out in his 1704 book . Opticks. , that "Light is never known to follow crooked passages nor to bend into the shadow". . This concept is consistent with the particle theory, which proposes that light particles must always travel in straight lines.. Data Analysis. Scott A Speakman, Ph.D.. Center for Materials Science and Engineering at MIT. speakman@mit.edu. http://prism.mit.edu/xray. . An X-ray diffraction pattern is a plot of the intensity of X-rays scattered at different angles . Derek A. Wann. University of Edinburgh. Workshop on Ultrafast Electron Sources. UCLA. 14. th. December . 2012. . Acknowledgements. Funding:. Stuart . Young. Matthew. Robinson. Paul. Lane. Overview. Physics . 2212. Light. Light has Wave properties. Light can Diffract. Light can Interfere. Constructively. Destructively. Wave Fronts. Lines that are perpendicular to the motion of the wave, indicate the location of the crests in the waves that are traveling together.. . CD/DVD drive. Image top. : . http://en.wikipedia.org/wiki/File:Dismdvd.. jpg. Image bottom: . http://. commons.wikimedia.org. /wiki/. File:DVD_querschnitt.svg. (. Creative Commons license). How does a CD/DVD store data?. X-ray. What . is . X-ray. . Diffraction?. Diffraction occurs when each object in a periodic . array scatters . radiation . coherently, . producing concerted constructive interference . at . specific.