The conversion electron is a low shell electron emitted for the energy change of the atom by internal conversion.

See Internal Conversion, Auger Effect, Auger Electron.

Electron excitation is the discrete energy storage in an orbital electron. The excitation energy results from the absorption of a photon (photoexcitation) or from the absorption of another electron (electrical excitation). The absorbed energy lifts the electron to a higher energy level. This process ends with electron relaxation.

See also Electron Relaxation.

Electron relaxation is the release of a short time stored discrete energy by an orbital electron which will then falls back to a lower energy level. The energy difference is emitted by the electron as a photon or given to another particle.

See also Electron Excitation.

Inherent filtration refers to a permanently implemented filter in the useful beam. Inherent filtration includes the window of the x-ray tube and any permanent enclosure for the tube or source.

In the internal conversion process the multipole electric field of the nucleus of an atom, in an electromagnetically excited state, react with an orbit electron. With enough energy the electron is ejected (internal conversion electron). The energy of the conversion electron depends on the energy transferred from the nucleus reduced by the shell specific binding energy. This process competes with gamma emission. The refilling for the vacancy left by the internal conversion electron occurs through the Auger effect, a higher orbit electron take place and x-ray or an Auger electron will be emitted.
The atomic number of the atom gets not changed by internal conversion.

See also Conversion Electron, Auger Effect and Auger Electron.