Input interpretation
Pu-241 | half-life
Result
14.29 years (14.28 to 14.3 yr)
Decay properties
half-life | 14.29 years (14.28 to 14.3 yr) mean lifetime | 20.616 years (20.59 to 20.64 yr) decay constant | 1.5381×10^-9 per second specific activity | 3.8425 TBq/g (terabecquerels per gram) width | 7.0168×10^-25 eV (electronvolts) decay modes | β^- (electron emission) | α (alpha emission) | SF (spontaneous fission) final decay products | Tl-205 (100%) | Pb-207 (7×10^-10%)
Critical properties
critical mass | 12 kg (kilograms) critical diameter | 10.5 cm (centimeters) (for a uniform sphere)
Unit conversions
5215.8 days
125180 hours
7.5108×10^6 minutes
4.5065×10^8 seconds
Comparisons as half-life
≈ 2.7 × half-life of cobalt-60 ( 1.6635×10^8 s )
≈ 5.5 × half-life of sodium-22 ( 8.2108×10^7 s )