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A X-ray diffraction

  1. Apr 8, 2017 #1
    X-ray has enough energy to eject the electron in the atom, molecule etc. But in the x-ray diffraction electron does not eject, only oscillate with the same frequency as X -ray,why? Why does not x-ray eject the electron?
  2. jcsd
  3. Apr 8, 2017 #2


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    Some of them do. Both processes happen, you can just ignore one if you are not interested in it.
  4. Apr 8, 2017 #3


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    This is not correct. There's nothing that says that electrons are also not ejected.

    The experimental setup typically is looking only for the diffracted x-ray, i.e. it has some photodetector, not an electron analyzer. So of course the setup will not detect any emitted photoelectrons, because that is not the purpose of an x-ray diffraction experiment.

    If you do the same thing in vacuum, and you have an electron analyzer designed to do a x-ray photoemission spectroscopy, I can almost guarantee you that you WILL detect photoelectrons.

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