radioactive equilibrium


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ra·di·o·ac·tive e·qui·lib·ri·um

a situation (not a true equilibrium) in which a particular atom is being produced by the radioactive breakdown of a precursor while it is itself breaking down, the two breakdowns matching so that over a period of time the ratio of radioactivity of product and precursor is constant.
References in periodicals archive ?
Also the inverse dependence between unattached fraction factor and radioactive equilibrium factor was determined.
The values of radioactive equilibrium factor altered from 0.
As it was mentioned before with the increase of aerosol particles concentration the radioactive equilibrium factor increases too.
Having smoked in the accommodation the aerosol particles concentration in the air has increased, which conditioned the increase of average value of radioactive equilibrium factor till 0.
Figure 6 shows a typical example of changes of radioactive equilibrium factor and unattached fraction factor during day and night period, where the concentration of indoor aerosol particles is changing under natural conditions and in smoke-filled premises.
At the same time the radioactive equilibrium factor was increasing, its values reached 0.
As it is seen in figure 6, there is an inverse dependence between radioactive equilibrium factor and unattached fraction factor.
Figure 7 presents the repeated frequency of calculated radioactive equilibrium factors in different investigated accommodations.
Usual repeated value of radioactive equilibrium factor is 0.
The seasonal average values of the radioactive equilibrium factor in the premises are presented in Figure 8.
It was determined that the seasonal values of the radioactive equilibrium factor in the investigated house varied from 0.
Figure 8 shows, that the values of radioactive equilibrium factor are the highest in winter and the lowest in summer.