| Radionuclide | Half-life | Gamma energy (keV) | Gamma intensity (%) | Progeny |
| I-131 | 8.025 d | 364.5 | 81.50 |
|
| 637.0 | 7.16 | |||
| Ba-133 | 10.55 y | 81.0 | 32.90 | |
| 356.0 | 62.05 | |||
| Cs-134 | 2.065 y | 569.3 | 15.37 | |
| 604.7 | 97.62 | |||
| 795.9 | 85.46 | |||
| Cs-137(a) | 30.08 y | 32.1 | 5.63 | Ba-137 |
| 661.7 | 85.10 | |||
| Eu-152 | 13.52 y | 121.8 | 28.41 |
|
| 344.3 | 26.59 | |||
| 1408.0 | 20.85 | |||
| Ir-192 | 73.83 d | 296.0 | 28.71 | |
| 316.5 | 82.86 | |||
| 468.1 | 47.84 | |||
| 604.4 | 8.22 | |||
| Ra-226(a) | 1600 y | 295.2 | 18.42 | Pb-214 |
| 351.9 | 35.60 | |||
| 609.3 | 45.49 | Bi-214 | ||
| 1120.3 | 14.92 | |||
| 1764.5 | 15.30 | |||
| Ra-228(a) | 5.75 y | 338.3 | 11.27 | Ac-228 |
| 911.2 | 25.80 | |||
| 238.6 | 43.60 | Pb-212 | ||
| 583.2 | 30.55 | Tl-208 | ||
| 2614.5 | 35.85 |