decay curve

decay curve

[di′kā ‚kərv]
(nuclear physics)
A graph showing how the activity of a radioactive sample varies with time; alternatively, it may show the amount of radioactive material remaining at any time.
References in periodicals archive ?
Today, he relishes the statistic that, as the it is selling even more than before and defying the decay curve that says designs should peak 18 months after launch.
Because the different polymer materials used in the manufacture of plastics display specific fluorescence lifetimes, the form of the decay curve can be used to identify their chemical nature.
The latter, along with measurement of the decay curve, was completed for BNL Emergency Operations to obtain a better understanding of the building dynamics and shelter-in-place requirements.
To measure the fluorescence decay curve of the donor in the films, a pulse of light with a wavelength selectively absorbed by the donor dye is used.
Unlike air temperature, soil temperature is subject to a damping effect from deeper soil levels, so although an exponential decay curve may be suitable for air temperature and shallow soil depths, it is possible that sine functions may be more appropriate at deeper levels.
The HCHO concentration decay curve can be plotted and will agree with the predicted curve plotted from [[eta].
There exists a point where the slop of the velocity decay curve takes an abrupt change as explained in Figure 4.
The distribution of demand around land use generally follows a decay curve.
In addition to customer profiling, PBBI created a distance decay curve to show how distance from the Schoolcraft campus affects the likelihood of a resident to take a class.
The second curve is the exponential decay curve where Y declines to zero from an initial value and represents the way in which quantities often decay or decline with time.
Figure 3 is an example of the exponential decay curve of a sunscreen as measured in the author's laboratory.
Analysis of the magnetization decay curve M(t) by way of a combined Gaussian/exponential equation (eq.