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Table 10.
Characteristics of the UVDA.
| Parameter | Unit | Requirement | Value |
|---|---|---|---|
| Sensor | |||
| Format | pixels | 1k × 1k | By design |
| Pixel size | μm | 15 | By design |
| Shutter | Rolling | By design | |
| Capacity with linearity within 5% | ke− | ≥99 | ≈102 |
| Dark current | e−/s | ≤3135 at 20°C | ≈370 at −20°C |
| ≈1100 at +20°C | |||
| Sensor gain | e−/DN | ≈9.3 (a) | |
| Fibre optic coupler | |||
| Focal plane to sensor demagnification | (2 ± 0.04):1 | (1.98 ± 0.01):1 (b) | |
| Intensifier | |||
| Entrance window | MgF2 | MgF2 | |
| Photocathode | KBr | KBr | |
| Applicable voltages | V | 0 ≤ VMCP ≤ 1000 | |
| 0 ≤ VSCREEN ≤ 6000 (VMCP ≤ VSCREEN) | |||
| Conversion efficiency | DN phot.−1 | ≈1 (VMCP = 660 V, VSCREEN = 6 kV) | |
| ≈30 (VMCP = 900 V, VSCREEN = 6 kV) | |||
| Dark noise at 20°C | Count pixel−1 cm−2 | 10 | < 0.1 (b)(c) |
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