Decay Characteristics of Terbium Radionuclides Useful for Medical Application (Main γ-Lines Are Given)
| Nuclide | Decay mode and branching | T1/2 | Eα (MeV) | Eβav (MeV) | Eγ (keV) | Iγ (%) | Application |
| 149Tb | α (16.7%), β+ (7.1%) | 4.12 h | 3.967 | 0.730 | 165.0 | 26 | α-therapy |
| 352.2 | 29 | ||||||
| 388.6 | 18 | ||||||
| 652.1 | 16 | ||||||
| 152Tb | β+ (17%) | 17.5 h | — | 1.080 | 271.1 | 8.6 | PET |
| 344.3 | 65 | ||||||
| 586.3 | 9.4 | ||||||
| 778.9 | 5.8 | ||||||
| 155Tb | EC (100%) | 5.32 d | — | — | 86.55 | 32 | SPECT |
| 105.3 | 25 | ||||||
| 180.1 | 7.5 | ||||||
| 262.3 | 5.3 | ||||||
| 161Tb | β− (100%) | 6.89 d | — | 0.154 | 25.65 | 23 | β−-/Auger therapy |
| 48.92 | 17 | ||||||
| 57.19 | 1.8 | ||||||
| 74.57 | 10 |