Figure 1. Phenomena responsible for XPS and Auger.<p>(a) Schematic diagram of a core electron ejected by X-rays to produce a photoelectron. (b) Nonradiative transition of an electron into the orbital vacated by the photoelectron, followed by the transfer of the energy released to an outer orbital and the ejection of a secondary, or Auger, electron.</p>

September 1, 1999

Figure 1. Phenomena responsible for XPS and Auger.
(a) Schematic diagram of a core electron ejected by X-rays to produce a photoelectron. (b) Nonradiative transition of an electron into the orbital vacated by the photoelectron, followed by the transfer of the energy released to an outer orbital and the ejection of a secondary, or Auger, electron.