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X-ray diffraction pattern

  1. Apr 28, 2009 #1
    2vbon80.jpg

    I want to find which elements and planes the intensity peaks in this graph comes from. The X-rays in the diffractometer are have a wavelength of 0.709 Å. The [tex]2 \theta[/tex] values for the peaks (including double peaks) are: 11.84, 19.56, 20.04, 23.28, 33.88 and 39.16.

    Nickel, iron, silicon, graphite and copper are the materials I am likely to find.


    Bragg's law:

    [tex]
    2dsin \theta = n \lambda
    [/tex]

    What should I do? Calculate d?

    [tex]
    d = \frac{n \lambda}{2 sin \theta_{hkl}}
    [/tex]

    What is n?

    Here are some data:
    Nickel: http://rruff.geo.arizona.edu/AMS/xtal_data/DIFfiles/10253.txt
    Graphite: http://rruff.geo.arizona.edu/AMS/xtal_data/DIFfiles/11023.txt
    Silicon: http://rruff.geo.arizona.edu/AMS/xtal_data/DIFfiles/10342.txt
    Copper: http://rruff.geo.arizona.edu/AMS/xtal_data/DIFfiles/13267.txt
    Iron: http://rruff.geo.arizona.edu/AMS/xtal_data/DIFfiles/00669.txt
     
  2. jcsd
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