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Dose rate and imaging dose metrics for XFCT and transmission CT configurations
| XFCT | Transmission CT | |
|---|---|---|
| Incident X‐ray spectrum | 125 kVp, 1.8‐mm Sn | 62 kVp, 0.4‐mm Al |
| Dose rate at isocenter (cGy/min) | 24.9 @ 24 mA | 40.2 @ 1.0 mA |
| Acquisition time per projection (s) | 10 | 0.05 |
| Dose per projection (cGy) | 1.87 (effective) | 0.0335 |
| Total number of projections | 330 | 360 |
| Total imaging dose (cGy) | 617 (effective) | 12.1 |
