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What is the 'first order' diffraction peak?

  1. Jul 13, 2011 #1
    Could someone explain what the 'first order' diffraction peak is?
  2. jcsd
  3. Jul 13, 2011 #2
    It depends on the context. Generally it simply means the first diffraction peak, from the http://en.wikipedia.org/wiki/Diffraction_formalism" [Broken].

    If its the 'diffraction peak, to first order' that can mean something different. That could be the value of the first diffraction peak, according to a 'first order' approximation.
    Last edited by a moderator: May 5, 2017
  4. Jul 13, 2011 #3
    Thanks for your help!:smile: I also liked the article you referred to.
    Last edited by a moderator: May 5, 2017
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