Decay Constant from ln N(t)
N(t)=N₀e^(−λt), lnN = lnN₀ − λt, T½ = ln2/λ.
Goal
Find T₁/₂ = ln(2)/λ from the fit.
Equipment
- Counter
Theory
Exponential decay: slope of lnN vs t is −λ.
Procedure
- t, N; ln N derived.
Experiment
Conclusion
T½ matches the sample half-life used in the sim.