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Nuclide Mix Calculator

(last updated 20 Feb 2026)
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For educational purposes only. No warranty.
The decay data is taken from ICRP-07 Data Files © A. Endo and K.F. Eckerman 2008.

Calculate mass and activities in a sample containing a mix of radioactive nuclides.

Enter available data and click the "Calculate" button below. HELP

Numbers can be entered in exponential notation: 5 · 10-6 = 5e-6

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      Data      
(if no data is entered for one nuclide in a share or concentration column, then the remainder is assumed for it)

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