Results:3 different decay possibilities were found
Dataset #1:
Author: A. Negret and B. Singh Citation:Nuclear Data Sheets 203, 283 (2025)
| Parent Nucleus | Parent E(level) | Parent Jπ | Parent T1/2 | Decay Mode | GS-GS Q-value (keV) | Daughter Nucleus | Decay Scheme | ENSDF file | ||
| 556.0518 | 6- | 1.017 m 3 | IT: 100 % |
|
Electrons:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| Auger L | 1.68 | 1.908 % 25 | 3.21E-5 4 |
| Auger K | 11.4 | 0.505 % 9 | 5.76E-5 11 |
| CE K | 540.87 18 | 1.549 % 22 | 0.00838 12 |
| CE L | 554.00 18 | 0.212 % 3 | 0.001174 17 |
| CE M | 555.75 18 | 0.0352 % 5 | 1.96E-4 3 |
| CE N | 556.04 18 | 0.00380 % 6 | 2.11E-5 3 |
Gamma and X-ray radiation:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| XR l | 1.69 | 0.0463 % 13 | 7.83E-7 22 |
| XR kα2 | 13.336 | 0.305 % 12 | 4.07E-5 16 |
| XR kα1 | 13.395 | 0.589 % 23 | 7.9E-5 3 |
| XR kβ3 | 14.952 | 0.0431 % 17 | 6.44E-6 25 |
| XR kβ1 | 14.961 | 0.083 % 3 | 1.25E-5 5 |
| XR kβ2 | 15.185 | 0.0132 % 5 | 2.00E-6 8 |
| 556.07 18 | 98.21 % 6 | 0.5461 4 | |
Dataset #2:
Author: A. Negret and B. Singh Citation:Nuclear Data Sheets 203, 283 (2025)
| Parent Nucleus | Parent E(level) | Parent Jπ | Parent T1/2 | Decay Mode | GS-GS Q-value (keV) | Daughter Nucleus | Decay Scheme | ENSDF file | ||
| 0 | 2- | 18.671 d 10 | ε: 0.0052 5 % | 518.67 20 |
|
Electrons:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| Auger L | 1.5 | 0.0056 % 7 | 8.5E-8 10 |
| Auger K | 10.8 | 0.00157 % 21 | 1.69E-7 23 |
Gamma and X-ray radiation:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| XR l | 1.59 | 1.24E-4 % 16 | 1.97E-9 25 |
| XR kα2 | 12.598 | 8.6E-4 % 12 | 1.08E-7 15 |
| XR kα1 | 12.651 | 0.00166 % 23 | 2.1E-7 3 |
| XR kβ3 | 14.104 | 1.19E-4 % 17 | 1.68E-8 24 |
| XR kβ1 | 14.111 | 2.3E-4 % 3 | 3.3E-8 5 |
| XR kβ2 | 14.311 | 3.0E-5 % 4 | 4.4E-9 6 |
Dataset #3:
Author: A. Negret and B. Singh Citation:Nuclear Data Sheets 203, 283 (2025)
| Parent Nucleus | Parent E(level) | Parent Jπ | Parent T1/2 | Decay Mode | GS-GS Q-value (keV) | Daughter Nucleus | Decay Scheme | ENSDF file | ||
| 0.0 | 2- | 18.671 d 10 | β-: 99.9948 5 % | 1776.10 20 |
|
Beta-:
| Energy (keV) | End-point energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) |
| 234.65 9 | 699.31 20 | 8.86 % 3 | 0.02079 7 |
| 702.48 9 | 1776.10 20 | 91.14 % 3 | 0.64025 22 |
Mean beta- energy: 661.0 keV 4, total beta- intensity: 100.00 % 4, mean beta- dose: 0.6610 MeV/Bq-s 4
Electrons:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| Auger L | 1.79 | 0.004520 % 15 | 8.09E-8 3 |
| Auger K | 12.1 | 0.001166 % 15 | 1.410E-7 19 |
| CE K | 1060.680 10 | 0.00383 % | 4.07E-5 |
| CE L | 1074.569 10 | 4.16E-4 % | 4.47E-6 |
| CE M | 1076.427 10 | 6.99E-5 % | 7.52E-7 |
| CE N | 1076.747 10 | 8.76E-6 % | 9.43E-8 |
Gamma and X-ray radiation:
| Energy (keV) | Intensity (%) | Dose ( MeV/Bq-s ) | |
| XR l | 1.81 | 1.22E-4 % 3 | 2.20E-9 6 |
| XR kα2 | 14.098 | 7.8E-4 % 3 | 1.10E-7 4 |
| XR kα1 | 14.165 | 0.00150 % 5 | 2.12E-7 8 |
| XR kβ3 | 15.825 | 1.12E-4 % 4 | 1.77E-8 6 |
| XR kβ1 | 15.836 | 2.16E-4 % 8 | 3.42E-8 12 |
| XR kβ2 | 16.085 | 3.83E-5 % 15 | 6.17E-9 25 |
| 1076.785 10 | 8.85 % | 0.0953 | |