MATTER LogoIntroduction to Electrons in Crystals

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Electron-Atom Interactions > Inelastic Scattering

Description of Flash Animation.

This animation models the four main processes by which a high energy electron can lose energy to an atom.

This resource requires Flash Player 9 or above available to download from http://www.adobe.com/go/getflash

Question
Try the K shell excitation several times and then make sure that you understand the subsequent X-ray and Auger electron emission processes which are shown on the next page.

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There are four main processes by which a high energy electron (red here) can lose energy to an atom. These are:

  1. the excitation of a plasmon
  2. the excitation of a single electron from the valence band (pale green)
  3. the excitation of an inner shell electron (from the K or L shell)
  4. the excitation of a phonon.

Three of these inelastic scattering processes are shown in the simulation on the right.

Question

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