ch42-p043 - 43. If N is the number of undecayed nuclei...

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= 1 0 λ λ λ ln . R N RN t We solve for N : N R N R e t =+ − F H I K λλ λ 0 . After many half-lives, the exponential is small and the second term can be neglected. Then, N = R / λ , regardless of the initial value N 0 . At times that are long compared to the half-life, the rate of production equals the rate of decay and N is a constant. 43. If N is the number of undecayed nuclei present at time
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This note was uploaded on 05/19/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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