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Need help getting the calibration curve of diffractometer

  1. May 22, 2010 #1
    I have obtained an XRD pattern for Silicon, with the peaks occurring at 28.5, 47.35, 56.15, 69.3,76.4,88.05 degrees within the 2theta range.

    h k l d-space
    1 1 1 3.1200
    2 2 0 1.9100
    3 1 1 1.6300
    4 0 0 1.3500
    3 3 1 1.2400
    4 2 2 1.1000

    these are the values from the ICDD that are given. I have to construct a calibration curve for the diffractometer, which is meant to be a graph of the 2theta value vs. the correction angle. Except I have no idea how to calculate the correction angle

    I assume I have to use Bragg's Law and the lattice parameter
    1/d^2 = (h^2 + k^2 + l^2)/a^2

    Please help as I can only find the value of a, then dont know what too do. Please help.
     
  2. jcsd
  3. May 24, 2010 #2
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