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Whenever a vacancy is created in one of the atomic shells the atom is left in an excited state, which leads to a reorganisation of the atomic shells resulting in emission of X-rays or Auger electrons. Vacancies in the atomic shells are produced mainly by ion-atom collisions, photoionisation, orbital-electron capture by the nucleus, or internal conversion of nuclear gamma rays. The distribution of the primary vacancies in the various subshells depends very much on the nature of the production process. This paper considers the reorganisation of atomic shells after radioactive decay, from initial single-vacancy states. The objectives are to develop relationships and supply references for numerical values, which may be useful for designing experiments in which X-rays or Auger electrons have to be detected.

Additional information

Authors: BAMBYNEK W, JRC Geel (BE)
Bibliographic Reference: Paper presented: Second International Summer School on Low-Level Measurements of Man-Made Radionuclides in the Environment, La Rábida, Huelva (ES), June 24 - July 6, 1990
Availability: Available from (1) as Paper EN 35594 ORA
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