NOTE – The radioactive half-life is related to the decay constant by:
T 1 2 = ln2 λ ≃ 0,693 λ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadsfadaWgaaqcba waaSWaaSqaaKGaGfaacaaIXaaabaGaaGOmaaaaaKqaahqaaOGaeyyp a0ZaaSaaaeaaciGGSbGaaiOBaiaaikdaaeaacqaH7oaBaaGaeS4qIS ZaaSaaaeaacaaIWaGaaiilaiaaiAdacaaI5aGaaG4maaqaaiabeU7a Sbaaaaa@458F@
λ = decay constant