powder x-ray diffraction

Sep 20, 2011

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How do we identify/individualize minerals, rocks, soils and other trace evidence?PLM-polarized light microscope-identification of constituents based on optical properties[note: binocular microscope group here]SEM/EDS-identification of constituents by determination of chemical composition [characteristic x-rays].

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powder x-ray diffraction

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1. Powder X-Ray Diffraction

7. Powder XRD in Criminalistic studies:

$X-Ray Diffraction$

X-Ray Diffraction

X-Ray Diffraction. The XRD Technique. Takes a sample of the material and places a powdered sample which is then illuminated with x-rays of a fixed wave-length. The intensity of the reflected radiation is recorded using a goniometer.

844 views • 16 slides

$X-ray diffraction$

X-ray diffraction

X-ray diffraction. Diffraction. Coherent scatter of waves off a periodic arrangement of matter Bragg equation n  = 2dsin . XRD pattern of halite. XRD pattern of beryl. X-ray Crystallography. Methods: 1) Single-Crystal:.

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$Basics of X-Ray Powder Diffraction$

Basics of X-Ray Powder Diffraction

Basics of X-Ray Powder Diffraction. Scott A Speakman, Ph.D. speakman@mit.edu (617) 253-6887 http://prism.mit.edu/xray. Training Required to become an Independent User in the X-Ray Shared Experimental Facility at the Center for Materials Science and Engineering at MIT.

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$X-ray Diffraction$

X-ray Diffraction

Instrument Report:. X-ray Diffraction. Guanghui Zhu. Contents. Diffraction Mechanism C onstruction of the Diffractometer Applications of XRD Data A nalysis and Explanation 2D XRD XRD Simulation. Diffraction Mechanism.

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$X-ray diffraction$

X-ray diffraction

X-ray diffraction. Meet in the LGRT lab Again, will hand in worksheet, not a formal lab report Revision exercise – hand in by April 17 th class. Diffraction summarized. The 6 lattice parameters ( a,b,c, a,b,g ) of a crystal determine the position of x-ray diffraction peaks.

973 views • 22 slides

$Basics of X-Ray Powder Diffraction$

Basics of X-Ray Powder Diffraction

Basics of X-Ray Powder Diffraction. Scott A. Speakman , Ph.D . For assistance in the X-ray lab, please contact Josh Guske Joshua T. Guske, Ph.D. jtguske@mit.edu.

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$X-ray diffraction$

X-ray diffraction

X-ray diffraction. Submitted By:- Nardev Kumar Bajaj Roll NO-12025138 Group-C. Submitted To:- Dr.Mandeep Singh. Contents. Introduction to X-rays Bragg’s law Scherrer law XRD Definition Working Why XRD Applications References. Introduction to X-rays.

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$X-ray Diffraction$

X-ray Diffraction

X-ray Diffraction. X-ray Generation. X-ray tube (sealed) Pure metal target (Cu) Electrons remover inner-shell electrons from target. Other electrons “fall” into hole. X-ray Generation. The incoming electron must have enough energy to remove inner 1 s electrons from the copper atoms.

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$X-ray Diffraction$

X-ray Diffraction

X-ray Diffraction. Frequency (Hz). 10 12. 10 9. 10 24. 10 21. 10 18. 10 15. 10 6. 10 3. 10 -12. 10 -9. 10 -6. 10 -3. 1.0. 10 3. 10 -15. 10 6. Wavelength (m). Electromagnetic Spectrum. Gamma Rays. UV. IR. Long Radio Waves. X-rays. Micro. TV. FM. AM. What are X-rays?.

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$X-Ray Diffraction$

X-Ray Diffraction

X-Ray Diffraction. Emily Day and Sage Ross Advanced Lab 1 Spring 2004. Outline. Introduction History How Diffraction Works Demonstration Analyzing Diffraction Patterns Solving DNA Applications Summary and Conclusions. Introduction. Motivation:

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$X-ray Powder diffraction (Xpd)$

X-ray Powder diffraction (Xpd)

X-ray Powder diffraction (Xpd). Beamline Development Team: E. Dooryhee , S. Ghose, E. Haas, X. Shi, J. Trunk Beamline Advisory Team: S. Billinge (Columbia U./BNL), J. Parise (SBU), P. Stephens (SBU), J. Hanson (BNL), J. Kaduk (NEOS Technologies), P. Chupas (ANL).

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$X-ray diffraction$

X-ray diffraction

X-ray diffraction. Equipment. Bruker D8 Analytical X-ray Systems. X-ray beam source.

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$X-Ray Diffraction$

X-Ray Diffraction

X-Ray Diffraction. ME 215 Exp#1. X-Ray Diffraction. X-rays is a form of electromagnetic radiation having a range of wavelength from 0.01-7 nm (0.01x10 -9 to 7x10 -9 m) Visible light wavelength is 0.56 m (560 nm) Spacing between atoms in metals range from 2-3 A (0.2-0.3 nm)

425 views • 12 slides

$X-Ray Diffraction$

X-Ray Diffraction

X-Ray Diffraction. Principle: interference of photons by reflection by ordered structures. Interference positive for:. Bragg’s law. . n  = 2 d sin . . 2 . . So, identification compound. d. d sin . In real catalysts: line broadening

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X-RAY DIFFRACTION

X-RAY DIFFRACTION. X- Ray Sources Diffraction: Bragg’s Law Crystal Structure Determination. Elements of X-Ray Diffraction B.D. Cullity & S.R. Stock Prentice Hall, Upper Saddle River (2001).

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$Practical powder X-ray diffraction$

Practical powder X-ray diffraction

KJM-MENA 4010 – module 13 Helmer Fjellvåg, SMN/KI David Wragg, SMN/KI Wojciech Slawinski, SMN/KI. Practical powder X-ray diffraction. Lectures Practical exercises Spring 2014. Progress plan. Lectures (Helmer Fjellvåg) Monday, March 10 th , room Ø124 ????

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$X-Ray Diffraction$

X-Ray Diffraction

X-Ray Diffraction. Dr. T. Ramlochan March 2010. Public service announcement…. Radiation warning symbol. New IAEA Radiation warning symbol. Radiation is dangerous, so run away!. Crystals.

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$X-ray Powder Diffraction$

X-ray Powder Diffraction

X-ray Powder Diffraction. Mark Nieuwenhuyzen. Panalytical X’Pert PRO Diffractometer. Experimental Apparatus. Flatplate sample holder Bragg-Brentano reflection geometry. XRK 900 Temperature cell Bragg-Brentano reflection geometry. Capillary Spinner Debye-Scherrer transmission geometry.

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$Powder X-ray Diffraction Technique$

Powder X-ray Diffraction Technique

Powder X-ray Diffraction Technique. Dr. Anjani Bhatt Bhavnagar. Keywords. History and Brief Introduction of Powder x-ray Diffractometer Importance of the Technique Information obtained from a Diffractogram Instrumentation of PXRD

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$Introduction to Powder X-ray Diffraction$

Introduction to Powder X-ray Diffraction

Introduction to Powder X-ray Diffraction. 18 th National School on Neutron and X-ray Scattering Cora Lind-Kovacs Department of Chemistry & Biochemistry The University of Toledo, Toledo, OH. History of Powder Diffraction. Discovery of X-rays: Roentgen, 1895 (Nobel Prize 1901)

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$X-ray diffraction$

X-ray diffraction

X-ray diffraction. Muhannad Alzahrani. Supervisor: Dr. Akhtar Naqvi. Presentation Outline. Introduction Theoretical Background Experimantal Procedure Results and Discussion Conclusion. Introduction (1). X-ray was first discovered by Wilhelm Rontgen in 1895

450 views • 14 slides

X-RAY DIFFRACTION

X-RAY DIFFRACTION. X- Ray Sources Diffraction: Bragg’s Law Crystal Structure Determination. Elements of X-Ray Diffraction B.D. Cullity & S.R. Stock Prentice Hall, Upper Saddle River (2001).

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