The Auger Process K L M Vacuum Level Eject core electron Higher electron falls into hole Another higher level electron is ejected to carry away excess
{"Image DocumentName": "The Auger Process Measure kinetic energy of ejected electron. Incident", "Image ImageDescription": "Another higher level electron is ejected to carry away excess energy. Measure kinetic energy of ejected electron. Incident. Electron. Beam (5 kV) Vacuum Level. M. The Auger process is a three electron concerted process. An incident electron beam hits an atom and ejects a core electron, leaving a hole in a highly excited atom. This state of excitation is quenched by another electron falling into that hole. The binding energy of the first electron is always very much greater than that of the second, so that there is still considerable excess energy in the system. This extra energy is shed by the ejection of a third electron from another shell. The residual kinetic energy of the ejected electron is measured and is a unique quantity determined by the binding energies of the three electrons and the work function of the materials involved. An Auger process is identified by the three letters of the atomic shells that participate in the process. Above is a KLL Auger transition. L. Eject core electron. Higher electron. falls into hole. K. Ekinetic = E(K) - E(L) - E(L)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}