Input interpretation
Dy-154 (dysprosium-154)
Decay properties
half-life | 3 Myr (megayears) (1.3 to 4.6 Myr) mean lifetime | 4.4 Myr (megayears) (2.1 to 6.6 Myr) decay constant | 7.1×10^-15 per second specific activity | 28 MBq/g (megabecquerels per gram) width | 4.8×10^-30 eV (electronvolts) decay modes | α (alpha emission) | 2β^+ (double beta decay) final decay products | Nd-142 (100%) | Gd-154 (0) | Sm-150 (0)
Decay modes
decay mode | α (alpha emission) branching ratio | 100% Q-value | 2.94569 MeV (megaelectronvolts) daughter nuclide | Gd-150 decay mode | 2β^+ (double beta decay) Q-value | 1.27066 MeV (megaelectronvolts) daughter nuclide | Gd-154
Radiation shielding
lead | 8.04 µm water | 17.9 µm air | 16.2 mm
Decay chain
Decay chain
Mass properties
atomic number (Z) | 66 mass number (A) | 154 neutron number | 88 atomic mass | 153.924424457 u (unified atomic mass units) mass excess | -70.398165 MeV (megaelectronvolts) binding energy per nucleon | 8.193157 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 0^+ (atomic boson) magnetic moment | 0 μ_N
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 334.58 keV (kiloelectronvolts) | 2^+ | 2.75×10^-11 seconds | 1.66×10^-5 eV (electronvolts) 660.82 keV (kiloelectronvolts) | 0^+ | (unknown) | (unknown) 747.04 keV (kiloelectronvolts) | 4^+ | 6.9×10^-12 seconds | 6.6×10^-5 eV (electronvolts) 905.19 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 1027.11 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 1058.08 keV (kiloelectronvolts) | 0^+ | (unknown) | (unknown) 1208.02 keV (kiloelectronvolts) | 3^- | (unknown) | (unknown) 1224.08 keV (kiloelectronvolts) | 6^+ | 2.4×10^-12 seconds | 1.9×10^-4 eV (electronvolts) 1251.86 keV (kiloelectronvolts) | 4^+ | (unknown) | (unknown) 1334.31 keV (kiloelectronvolts) | 3^+ | (unknown) | (unknown)