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V. M. Byakov, Yu. D. Perfil’ev, L. A. Kulikov, S. V. Stepanov
Time-Space Evolution of the Ion-Electron Pairs Formed
by Auger-Electrons Around the Mossbauer Ion 57Fen+
Abstract
It
is shown that emission of the Auger-electrons during formation of the
Moessbauer nucleus 57Fe leads not only to
formation of the multi-charged ion 57Fen+, but to
formation of a cloud of many (200–300) ion-electron pairs (H2O+, e–) around Fe ion.
This cloud is called as Auger-blob. Its size (radius) is about ~100 E. Fast radiation-chemical reactions in the Auger-blob
determine experimentally observable ratio of yields of final chemically stable
ions Fe3+ and Fe2+ . Knowledge of
this ratio is important for adequate interpretation of the results of the
emission Moessbauer spectroscopy. In spite of the estimations done are related
to frozen aqueous solutions, they can be easily adjusted to media of another
chemical composition.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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