Series Decay
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Subgroup I: Radiation Physics and Detection
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7 Terms
series decay
daughter of a radioactive parent may itself be radioactive, producting a decay chain
transient equilibrium
occurs when the half life of the parent is longer than the daughter, but not infinitely long (10-100x)
once transient equilibrium has been established
the ratio of activity of the parent to the daughter remains constant
What kind of equilibrium does a Mo99/Tc99m generator reach?
transient equilibrium
secular equilibrium
occurs when the half life of the parent is much much longer than the daughter (>1000x)
What kind of equilibrium does a Sr82/Rb82 generator reach?
secular equilibrium
no equilibrium
if the half-life of the daughter is longer than the parent, then no equilibrium will be established