Leumas Physics

Decay Constant from Half-Life

lambda = ln(2) / t_half

What it says

The radioactive decay constant is the natural logarithm of two divided by the half-life of the isotope. It is the inverse relationship of computing a half-life from a known decay constant.

Symbols

SymbolQuantityDimension
t_halfHalf-life (s)T
lambdaDecay constant (1/s)T^-1

Work it out

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Connects to

Filed under Nuclear · derive through it in the explorer