powder x-ray diffraction

Sep 20, 2011

210 likes | 821 Vues

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].

Share Presentation

Embed Code

Link

salena

Télécharger la présentation

powder x-ray diffraction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

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.

849 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:.

747 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. 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.

1.72k views • 107 slides

$X-ray Diffraction$

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.

1.94k views • 63 slides

$X-ray diffraction$

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.

976 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.

1.66k views • 107 slides

$X-ray diffraction$

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.

2.25k views • 19 slides

$X-ray Diffraction$

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.

492 views • 21 slides

$X-ray Diffraction$

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?.

802 views • 24 slides

$X-Ray Diffraction$

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:

657 views • 22 slides

$X-ray Powder diffraction (Xpd)$

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).

230 views • 1 slides

$X-ray diffraction$

X-ray diffraction

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

2.02k views • 57 slides

$X-Ray Diffraction$

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)

428 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

1.81k views • 10 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).

2.96k views • 80 slides

$Practical powder X-ray diffraction$

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 ????

202 views • 4 slides

$X-Ray Diffraction$

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.

641 views • 17 slides

$X-ray Powder Diffraction$

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.

297 views • 4 slides

$Powder X-ray Diffraction Technique$

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

368 views • 29 slides

$Introduction to Powder X-ray Diffraction$

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)

1.66k views • 46 slides

$X-ray diffraction$

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

456 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).

2.11k views • 80 slides

More Related