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Plotting Radioactive Decay - h1019v1_60
Radioactive Equilibrium

Nuclear Physics and Reactor Theory Volume 1 of 2
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Atomic and Nuclear Physics DOE-HDBK-1019/1-93 RADIOACTIVITY Rev. 0 Page 37 NP-01 Figure 11   Linear and Semi-log Plots of Nitrogen-16 Decay Plotting the data points calculated above on both linear and semilog scales results in the graphs shown in Figure 11. If a substance contains more than one radioactive nuclide, the total activity is the sum of the individual  activities  of  each  nuclide.      As  an  example,  consider  a  sample  of  material  that contained  1 x 10   atoms  of iron-59 that has a half-life of 44.51 days (     = 1.80 x 10   sec  ), 6 -7 -1 1 x 10  atoms of manganese-54 that has a half-life of 312.2 days  (     = 2.57 x 10   sec  ), and  1 6 -8 -1 x 10  atoms of cobalt-60 that has a half-life of 1925 days (     = 4.17 x 10   sec  ). 6 -9 -1 The initial activity of each of the nuclides would be the product of the number of atoms and the decay constant.







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