Radioactive Decay

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Subgroup I: Radiation Physics and Detection

Last updated 10:12 PM on 7/1/26

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9 Terms

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radioactive decay

a nuclear process that is both random and spontaneous

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dN/dt

instantaneous rate of decay

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Radioactive Decay Law

dN/dt = -ʎN

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Decay Equation

A_t = A₀ e ^-ʎ*t

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decay constant

ʎ, fractional rate of decay

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decay factor

e ^-ʎ*t, fraction remaining

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1 Bq = __ dps

1

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1 Ci = __ dps

3.7 × 10¹⁰

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1 Ci = __ dpm

2.22 × 10¹²