Input interpretation
Al-40 (aluminum-40) | Tb-162 (terbium-162)
Decay properties
| Al-40 | Tb-162 half-life | 260 ns (2.57×10^-7 to ∞ s) | 7.6 min (7.34 to 7.86 min) mean lifetime | 375 ns (3.7×10^-7 to ∞ s) | 11 min (10.6 to 11.4 min) decay constant | 2.67×10^6 per second | 0.00152 per second specific activity | 4.01×10^16 TBq/g | 5.65×10^6 TBq/g width | 1.22×10^-9 eV | 6.93×10^-19 eV decay modes | β^- (electron emission) | β^-n (electron + delayed neutron) | β^- (electron emission) final decay products | Ar-38 (0) | Ar-40 (0) | K-39 (0) | Dy-162 (100%)
Decay modes
Al-40
decay mode | β^- (electron emission) Q-value | 23.828 MeV (megaelectronvolts) daughter nuclide | Si-40 decay mode | β^-n (electron + delayed neutron) Q-value | 19.296 MeV (megaelectronvolts) daughter nuclide | Si-39
Tb-162
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 2.5055 MeV (megaelectronvolts) daughter nuclide | Dy-162
Radiation shielding
| Al-40 lead | 1.78 mm portland concrete | 6.36 mm water | 12.5 mm air | 10.8 m
Decay chain
Al-40
Decay chain Al-40
Tb-162
Decay chain Tb-162
Mass properties
| Al-40 | Tb-162 atomic number (Z) | 13 | 65 mass number (A) | 40 | 162 neutron number | 27 | 97 atomic mass | 40.03145 u (unified atomic mass units) | 161.929488234 u (unified atomic mass units) mass excess | 29.295 MeV (megaelectronvolts) | -65.681287 MeV (megaelectronvolts) binding energy per nucleon | 7.085 MeV (megaelectronvolts) | 8.162853 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Tb-162 spin parity J^π | 1^- (atomic fermion)
Quantum properties