Table 2 Activation products identified in irradiated targets.
Nuclide | Half life | Principal contributing reaction | Q-value MeV | Decay mode | Eγ, keV | Iγ, % |
|---|---|---|---|---|---|---|
147Tb | 1.7 h | 151Eu(3He,7n)147Tb | −45.48 | EC (100%) | 694.4 keV | 43.0 |
148Tb | 60 m | 151Eu(3He,6n)148Tb | −37.62 | EC (100%) | 784.4 keV | 84.4 |
149Tb | 4.118 h | 151Eu(3He,5n)149Tb | −28.59 | EC (83.3%) α (16.7%) | 352.2 keV | 29.43 |
150Tb | 3.48 h | 151Eu(3He,4n)150Tb | −20.90 | EC (100%) α (<0.05%) | 638.1 keV | 72.0 |
151Tb | 17.609 h | 151Eu(3He,3n)151Tb | −12.31 | EC (100%) α (0.0095%) | 108.1 keV 251.9 keV 287.4 keV | 24.3 26.3 28.3 |
152Tb | 17.5 h | 151Eu(3He,2n)152Tb | −5.15 | EC (100%) α (<7E-7%) | 344.3 keV | 65.0 |
147Gd | 38.06 h | 151Eu(3He,p6n)147Gd 147Tb → 147Gd | −40.08 | EC (100%) | 229.3 keV | 63.0 |
149Gd | 9.28 d | 151Eu(3He, p4n)149Gd 149Tb → 149Gd | −24.17 | EC (100%) α (4.3E-4%) | 149.7 keV | 48.2 |
