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N. V. Demin
N. V. Demin
Moscow Geological Prospecting University
Moscow Geological Prospecting University

Co-authors

Articles

Environmental monitoring
  • Date submitted
    2005-01-03
  • Date accepted
    2005-02-04
  • Date published
    2005-08-01

Determination of snow cover moisture content by measurements of ascending fluxes of lithospheric neutrons

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The aim of the research is to obtain experimental evidence of the existence of a connection between the density of natural neutron fluxes from the water equivalent of the snow cover. To achieve the above goal, experiments were carried out in which thermal and fast neutron detectors were placed in different locations in the snow cover and on the ground surface.

How to cite: Demin N.V., Bondarenko V.M. Determination of snow cover moisture content by measurements of ascending fluxes of lithospheric neutrons // Journal of Mining Institute. 2005. Vol. 166. p. 104-106.
Environmental monitoring
  • Date submitted
    2003-08-24
  • Date accepted
    2003-09-17
  • Date published
    2004-03-01

Monitoring of neutron fluxes in the surface layer of the atmosphere, generated by radioactive emanations in rocks

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Measurements of the spatial variations of thermal and fast neutrons near the Earth's surface have shown that thermal and fast neutron fluxes directly correlate with the specific radioactivity of 226 Ra, 232 Th and radon content in rocks, with the thermal neutron flux directly correlating with the rock humidity and the fast neutron flux inversely.

How to cite: Demin N.V., Bondarenko V.M. Monitoring of neutron fluxes in the surface layer of the atmosphere, generated by radioactive emanations in rocks // Journal of Mining Institute. 2004. Vol. 158. p. 105-107.
Safety problems of radiation, electromagnetic and other dangerous influence on people
  • Date submitted
    2000-10-07
  • Date accepted
    2000-11-28
  • Date published
    2001-05-01

Effect of radon fields on the concentration of ions in the air and electrical conductivity of rocks

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As a result of performed synchronous measurements of radon volumetric activity, concentration and subviscosity of aeroions, optimum levels of radon concentrations for radonotherapy have been revealed, it has been established that increase of radon volumetric activity leads to generation of aeroions above the maximum permissible concentration, i.e. aggravation of pathogenic action of radon by exposure of aeroions. The studies have shown that certain volumetric activity of radon in the subsoil air leads to changes in electrical conductivity of rocks and the surface layer of the atmosphere, resulting in variations of electromagnetic field and atmospheric electricity spatially confined to radon anomalies, which are 3-5 times higher than the background values and change the informational effect of electromagnetic fields on human beings.

How to cite: Bondarenko V.M., Demin N.V. Effect of radon fields on the concentration of ions in the air and electrical conductivity of rocks // Journal of Mining Institute. 2001. Vol. № 5 149. p. 18-21.