1000
Theoretical: 1000
0
Theoretical: 0
100.0%
Theoretical: 100.0%
Half-life is the time required for half of the atoms in a sample of radioactive material to decay. After one half-life, 50% of atoms remain. After two half-lives, 25% remain, and so on.
In this simulation, each particle decays randomly, but the overall pattern follows the exponential decay law: N(t) = N₀ × (1/2)^(t/T₁/₂), where N₀ is the initial number of atoms and T₁/₂ is the half-life.
The Activity Factor is determined by the Initial Count Rate setting and represents the radioactivity level of the sample. The count rate decreases proportionally with the number of undecayed particles.