This calculator graphs the radioactive decay of a given isotope over a specified period of time using the formula:
Where:N = Final activity
No = Initial activity
e = 2.71828183...
0.693 = radioactive decay constant
t = duration of decay
T½ = Isotope half life
This formula is then graphed as the following function:
As well as graphing this function, the calculator also returns a table of results (below) displaying elapsed days, the date and the activity of the isotope.
This calculator should be used for information only