Temporal variation of soil radon emanation related to seismic activity
نویسندگان
چکیده
منابع مشابه
Emanation of Radon from Solid Samples
This report presents a brief review as well as some theoretical background on radon (^Rn) emanation methods from solid samples. This is followed by a description of an experimental apparatus built at the Elliot Lake Laboratory. (Mining Research Laboratory. CANMET, E.M.R.) to measure the ^Rn emanation rate from ^Ra-bearing solid materials by the vacuum emanation method. Experimental data are pre...
متن کاملDifferences of natural radioactivity and radon emanation fraction among constituent minerals of rock or soil.
We examined differences in the radioactive characteristics among the main minerals forming granite materials. Using a non-toxic high-density agent, minerals were separated from rock (granite-gneiss) and soil (weathered granite) samples. The natural radioactivity ((238)U and (226)Ra) and radon emanation fraction of the minerals were then studied by gamma-ray spectrometry. The radon emanation fra...
متن کاملAnomalous radon emanation linked to preseismic electromagnetic phenomena
Anomalous emanation of radon (222Rn) was observed preceding large earthquakes and is considered to be linked to preseismic electromagnetic phenomena (e.g. great changes of atmospheric electric field and ionospheric disturbances). Here we analyze atmospheric radon concentration and estimate changes of electrical conditions in atmosphere due to preseismic radon anomaly. The increase of radon eman...
متن کاملMoisture content effect on radon emanation in porous media
It is impractical to establish the detailed recoil range distribution and to measure the rough recoil surface of the porous media experimentally. Thus a computer based modelling approach is followed. The ion collision theory of nuclear physics provides the basics for calculating the recoil range distributions for radon within solid, water and air. The collision history is established by the mod...
متن کاملRadon Loss From Zircon: Effects Of Microstructure On Radon Emanation And Diffusion
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ژورنال
عنوان ژورنال: HNPS Proceedings
سال: 2019
ISSN: 2654-0088,2654-007X
DOI: 10.12681/hnps.1992