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The role of radium distribution and porosity in radon emanation from solids
Author(s) -
Semkow Thomas M.,
Parekh Pravin P.
Publication year - 1990
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl017i006p00837
Subject(s) - radon , radium , porosity , recoil , mineralogy , distribution (mathematics) , geology , materials science , chemistry , physics , nuclear physics , radiochemistry , composite material , mathematical analysis , mathematics
Essential features of the grain emanation and aggregation models are presented. The presence of thin layers containing Ra is shown to enhance the Rn emanation from the grains. A multiple α‐recoil mechanism is suggested to create a nonuniform Ra distribution. It is also shown that the rnesoporosity may increase Rn emanation and the macroporosity may contribute to Rn transport.