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Emission and scatter energy windows chosen for each radioisotope on the Symbia T6 (Siemens)
| Windows | 223Ra | 225Ac | 227Th |
|---|---|---|---|
| I | 85 keV ± 20% | 82 keV ± 20% | 50.6 keV ± 20% |
| II | 154 keV ± 20% | 216.8 keV ± 8% | 85.7 keV ± 15% |
| III | 270 keV ± 10% | 444.3 keV ± 5% | 240 keV ± 9% |
