Autor:	Thomas M. Semkow, Pravin P. Parekh
Rok vydání:	1990
Předmět:	Pore size Radium Geophysics Thin layers chemistry Mass transfer General Earth and Planetary Sciences Mineralogy chemistry.chemical_element Radon Alpha particle Porosity
Zdroj:	Geophysical Research Letters. 17:837-840
ISSN:	0094-8276
Popis:	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 {alpha}-recoil mechanism is suggested to create a nonuniform Ra distribution. It is also shown that the mesoporosity may increase Rn emanation and the macroporosity may contribute to Rn transport.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80f02f3060debacc04fce500172e3a67 https://doi.org/10.1029/gl017i006p00837 Zobrazit plný text záznamu Plný text