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Table 8.
SWA-PAS design target goals with build and calibrated properties for PFM instrument.
| Parameter | Range and resolution | Design goal | Build and |
|---|---|---|---|
| calibration | |||
| Energy | Range | 200 eV−20 keV | 70 eV−20 keV |
| Resolution (ΔE/E) | 5.5% | 3.0−9.3% | |
| Number of steps | 96 | 92 | |
| Analyser constant (eV/V) | 13 | 13−14 | |
| Angle | Azim. range | −24° to 42° | −24° to +42° |
| Elev. range | ±22.5° | −20° to +23° | |
| Azim. resolution | < 6° | 5° | |
| Elev. resolution | < 6° | 5° | |
| Temporal | Basic accumulation period | ∼1 ms | 0.95 ms |
| Normal mode | 4 s moments and 3D VDFs | 4s moments and 3D VDFs | |
| Burst mode | 15 VDFs/s | 15 VDFs/s | |
| Sensitivity | Per angular bin (cm2 sr eV/eV) | ≥4 × 10−6 | From 4 × 10−6 to 6 × 10−6 |
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