TABLE 5.
Error budgets for this study.
| Budgets of uncertainty |
Uncertainty (%, k = 1) |
Comments |
|---|---|---|
| Charge measurement of electrometers | 0.08 | Provided by the ANTM*‐accredited facility |
| Repeatability (measurements) | 0.01 | Obtained from measured data |
| Time linearity of output charge | 0.01 | Obtained from catalog |
| Uncertainty of zero drift | 0.1 | Obtained from catalog |
| Temperature coefficient of zero drift (/°C) | 0.015 | Obtained from catalog |
| Temperature coefficient of output current (/°C) | 0.003 | Obtained from catalog |
| Combined uncertainty (k = 1) | 0.13 | Root Mean Square |
| * Association for Nuclear Technology in Medicine | ||