Table 1.
Typical uncertainty sources encountered in PFNS measurements are listed dependent on their specific measurement type. Also, estimates of typical uncertainty ranges are provided in case this information cannot be derived otherwise for uncertainty-quantification purposes. “ND” was used as an abbreviation for nuclear data.
| Unc. | Shape (%) | Clean-ratio shape (%) | Ratio-calibration shape (%) |
|---|---|---|---|
| δc | Must be provided | Must be provided (δcs & δcm) | Must be provided (δcs & δcm) |
| δb | 0.2–3 | 0.2–2 | 0.2–3 for both |
| δm | 1–20 (not corrected) | 0.1–5 (not corrected) | 1–20 (not corrected, both) |
| 0.1–3 (corrected) | 0–0.8 (corrected) | 1–3 (corrected, both) | |
| δε | 2–7 (efficiency) | Cancels | Unc. in determining χm |
| 0–10 (response not folded) | – | 0–10 both (response not folded) | |
| δa | 0.1 | 0.1 | 0.1 |
| δτ | 0.1 | 0.1 | 0.1 for both |
| ND | 0.1–5 (simulations) | 0–0.5 (simulations) | 0.1–5 both (simulations) |
| – | From libraries (reference) | From libraries (reference) | |
| δt | 2.5 ns | 2.5 ns both | 2.5 ns both |
| ΔL | 2 mm | 2 mm both | 2 mm both |
| δω | Impurity-level dependent | Both samples | Both samples |
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