Input interpretation
Ac-209 I-119 | decay modes
Results
Ac-209 | α (alpha emission) | β^+ (positron emission) I-119 | β^+ (positron emission)
Decay properties
| Ac-209 | I-119 half-life | 100 ms (0 to 200 ms) | 19.1 min (18 to 20 min) mean lifetime | 144 ms (-8 to 290 ms) | 27.6 min (26 to 29.1 min) decay constant | 6.93 per second | 6.05×10^-4 per second specific activity | 2×10^10 TBq/g | 3.06×10^6 TBq/g width | 3.16×10^-15 eV | 2.76×10^-19 eV decay modes | α (alpha emission) | β^+ (positron emission) | β^+ (positron emission) final decay products | Au-197 (70%) | Hg-201 (29%) | Tl-205 (1%) | Ir-193 (7×10^-5%) | Os-189 (7×10^-12%) | Sn-119 (100%)
Decay modes
Ac-209
decay mode | α (alpha emission) branching ratio | 99% Q-value | 7.7292 MeV (megaelectronvolts) daughter nuclide | Fr-205 decay mode | β^+ (positron emission) branching ratio | 1% Q-value | 5.9673 MeV (megaelectronvolts) daughter nuclide | Ra-209
I-119
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 2.3967 MeV (megaelectronvolts) daughter nuclide | Te-119