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Decay calculation

Choose the isotope from the list:   Half-life, days:

 

 
     
         
Calibration date:   Calibration activity A0:    
   
         
Calculation date:   Required activity:   Show the result in:
   
         
       


One year is equal to 365.2422 days.

Reference data:

1) Update of x ray and gamma ray decay data standards for detector calibration and other applications, volume 1, 2007

2) Karlsruhe Nuclide Chart, 7th edition, 2006