Table 1. Dosimetric evaluation in terms of air kerma free-in-air in full single-scan, half step-scan and full step-scan irradiation geometries.
| Revolutions | Internal dose (min) (mGy) | Skin dose (max) (mGy) | Average skin dose (mGy) | Skin-to-center dose ratio | |
|---|---|---|---|---|---|
| Full single-scan | 1 | 1.9 | 6 | 5.4 | 2.9 |
| Half step-scan | 3 | 2.8 | 12 | 5.9 | 2.1 |
| Full step-scan | 6 | 3.2 | 10 | 6.9 | 2.2 |