Open Access
Table 2
Uncertainty budget for the measurements.
| Source of uncertainty | Type A value (%) | Type B value (%) |
|---|---|---|
| 1. Statistical uncertainty | ||
| Repeatability of measurements | 0.06 | – |
| Reproducibility of measurements | 0.35 | – |
| 2. Uncertainty of dosimeter reading that include: calibration factor, resolution of reading, stability and ion recombination | 0.17 | 0.52 |
| 3. Uncertainty due to position of ion chamber (uniformity and distance) | 0.2 | 0.2 |
| 4. Uncertainty due to the measurements of environmental conditions, KTP (temperature and pressure) | 0.35 | 0.18 |
| 5. Uncertainty due to beam scattering | 0.35 | 1 |
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