Input interpretation
Cf-242 | decay modes
Result
α (alpha emission) | β^+ (positron emission) | SF (spontaneous fission)
Decay properties
half-life | 220 seconds (2 to 5.1 min) mean lifetime | 5.3 minutes (3 to 8 min) decay constant | 0.0031 per second specific activity | 7.8×10^6 TBq/g (terabecquerels per gram) width | 1.4×10^-18 eV (electronvolts) decay modes | α (alpha emission) | β^+ (positron emission) | SF (spontaneous fission) 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%)
Decay modes
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%