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Homework Help: Fading Diffraction Peaks

  1. Feb 15, 2010 #1
    1. The problem statement, all variables and given/known data

    It is question number 1a here:

    http://web.utk.edu/~tbarnes/website/cm/cm_hw/hw4/cm_hw4.pdf [Broken]

    3. The attempt at a solution

    I'm not entirely sure how to go about this. I've rearranged this equation to get


    The thing that confuses me is that Ghkl2 is a vector quantity, right? In this case, since we are talking about the (800) plane, would this be just the dot product of G with itself (64)? I'm just not sure how I'm supposed to turn this into a scalar. Any help would be greatly appreciated.
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Feb 16, 2010 #2


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    Please recheck your definition of the dot product.
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