Input interpretation
Cf-242 Pu-228 | decay modes
Results
Cf-242 | α (alpha emission) | β^+ (positron emission) | SF (spontaneous fission) Pu-228 | α (alpha emission) | β^+ (positron emission)
Decay properties
| Cf-242 | Pu-228 half-life | 220 s (2 to 5.1 min) | 1.1 s (0.3 to 3.3 s) mean lifetime | 5.3 min (3 to 8 min) | 1.6 s (0.1 to 4.8 s) decay constant | 0.0031 per second | 0.63 per second specific activity | 7.8×10^6 TBq/g | 1.7×10^9 TBq/g width | 1.4×10^-18 eV | 2.9×10^-16 eV decay modes | α (alpha emission) | β^+ (positron emission) | SF (spontaneous fission) | α (alpha emission) | β^+ (positron emission) final decay products | Pb-206 (100%) | Tl-205 (2×10^-6%) | Pb-208 (3×10^-9%) | W-184 (9×10^-12%) | Yb-168 (2×10^-15%) | Er-164 (2×10^-15%) | Dy-160 (7×10^-17%) | Dy-156 (4×10^-19%) | Sm-144 (5×10^-20%) | Ce-140 (5×10^-21%) | Dy-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Sm-152 (0%) | Yb-172 (0%) | Pb-204 (100%) | Pb-208 (0.1%) | Pb-206 (1×10^-13%) | Hg-200 (0%)
Decay modes
Cf-242
decay mode | α (alpha emission) branching ratio | 80% Q-value | 7.51678 MeV (megaelectronvolts) daughter nuclide | Cm-238 decay mode | β^+ (positron emission) branching ratio | 20% Q-value | 580 keV (kiloelectronvolts) daughter nuclide | Bk-242 decay mode | SF (spontaneous fission) branching ratio | 0.014%
Pu-228
decay mode | α (alpha emission) branching ratio | 100% Q-value | 7.9496 MeV (megaelectronvolts) daughter nuclide | U-224 decay mode | β^+ (positron emission) branching ratio | 0.1% Q-value | 1.365 MeV (megaelectronvolts) daughter nuclide | Np-228