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Inner Shell Ionization Produced by the Compton Effect

D. E. Charlton
Radiation Research
Vol. 88, No. 2 (Nov., 1981), pp. 420-425
DOI: 10.2307/3575674
Stable URL: http://www.jstor.org/stable/3575674
Page Count: 6
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Inner Shell Ionization Produced by the Compton Effect
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Abstract

The creation of inner-shell vacancies in atoms via the Compton effect is discussed. It is shown that the Klein-Nishina approximation leads to a simple vacancy distribution among the shells, independent of the photon energy. When atomic binding effects are taken into account an energy-dependent distribution can be calculated which tends to the Klein-Nishina results at higher photon energies. The inner-shell vacancies produce a potential energy on the ionized atom which is not necessarily small when compared with the recoil energy of the emitted electron. This additional effect contributes to a more complete description of mechanisms by which energy is transferred by the Compton interaction. Calculations are performed for aluminum exposed to photons with energies from 10 to 500 keV.

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