Input interpretation
Ac-231 Dy-148 | decay modes
Results
Ac-231 | β^- (electron emission) Dy-148 | β^+ (positron emission)
Decay properties
| Ac-231 | Dy-148 half-life | 7.5 min (7.32 to 7.68 min) | 200 s (183 to 212 s) mean lifetime | 10.8 min (10.6 to 11.1 min) | 4.83 min (4.42 to 5.1 min) decay constant | 0.00154 per second | 0.00345 per second specific activity | 4.01×10^6 TBq/g | 1.4×10^7 TBq/g width | 1×10^-18 eV | 2.3×10^-18 eV decay modes | β^- (electron emission) | β^+ (positron emission) final decay products | Pb-207 (100%) | Tl-205 (9×10^-10) | Pb-208 (1×10^-14) | Sm-144 (100%) | Ce-140 (0)
Decay modes
Ac-231
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 2.1 MeV (megaelectronvolts) daughter nuclide | Th-231
Dy-148
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 1.65876 MeV (megaelectronvolts) daughter nuclide | Tb-148