Thyroid Probe Counts of 11.1-MBq Capsule of 123I Without Attenuator, Within Neck Phantom, and Behind Cadaver Chest Wall
| Object | Data |
|---|---|
| Background | 115 counts/min |
| Capsule | 1.581 × 106 counts/min |
| Capsule + neck phantom | 1.290 × 106 counts/min |
| Capsule + chest wall | 1.029 × 106 counts/min |
| Calculated attenuation | |
| Neck phantom | 18% |
| Chest wall | 35% |