$PPT-X-Ray Diffraction Lecture 10$

PPT-X-Ray Diffraction Lecture 10

Author : lois-ondreau | Published Date : 2018-10-21

History 1895 Wilhelm Conrad R ӧ ntgen discovered Xrays 1905 Albert Einstein introduces the concept of photons concept not accepted until 1922 1913 Max von Laue

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X-Ray Diffraction Lecture 10: Transcript

History 1895 Wilhelm Conrad R ӧ ntgen discovered Xrays 1905 Albert Einstein introduces the concept of photons concept not accepted until 1922 1913 Max von Laue Walter Friedrich . Textbook sections 28-4 – 28-6. Physics 1161:. . . Lecture 21. Recall. Interference . (at least 2 coherent waves). Constructive (full wavelength difference). Destructive (½ wavelength difference). Physics 2415 Lecture 38. Michael Fowler, . UVa. Today’s Topics. Multi-slit interference. The diffraction grating: spectra. Waves and particles, more diffraction. Radio . astronomy. Light Intensity Pattern from Two Slits. 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. Pg. 459 - 461. Properties of Waves. In order to study the properties of waves, a ripple tank is used. A shallow, glass-bottomed tank on left. ~2cm of water is added. Light from a source above the tank passes through the water and illuminates a screen on the table below. 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 . not . from pigmentation (dull brown) but from interference in small structures on the wings. 200 . micron . scale photo. 1. Incandescent bulb viewed through a diffraction grating.. Office Hours: I am available before class 11:30-12:10 MWF and after class on Monday and Friday in WAT 233 and by arrangement (. Introduction I. 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 . 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.. 36.02 . Describe an experiment that demonstrates the Fresnel bright spot.. Kirigami. Nanocomposite. L. . Xu. , X. Wang. , Y. . Kim, T. C. Shyu, J. . Lyu. , N.A. . Kotov, . Kirigami. . Nanocomposites as Wide-Angle Diffraction Gratings, . ACS Nano, . 2016. 10 (6), 6156–6162.. (. XRD. ). . X. -. R. ay . P. hotoelectron . S. pectroscopy. (. XPS. ). By:. . Roya. . Ayazi. . Nasrabadi. What is X. -. ray. ?. X-ray . diffraction. (. XRD. ). Bragg’s Law. n . λ. =2dsin. θ. 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.

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