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Measurement uncertainty analysis
| Variable | Film (%) | Farmer (%) |
|---|---|---|
| Scanning consistency | 0.1 | 0.1 |
| Film uniformity | 1.0 | 0.0 |
| ROI size | 1.5 | 0.0 |
| Calibration curve fit | 3.5 | 0.0 |
| Chamber calibration | 0.0 | 3.0 |
| Distance to source | 4.0 | 6.0 |
| Source strength | 5.0 | 5.0 |
| Exposure time | 0.5 | 0.5 |
| Repeatability | 3.0 | 3.0 |
| Total uncertainty | 8.0 | 8.8 |
