DH_3 Multi-Alkali Photomultiplier (200-850nm)
Electro-optical
| Photocathode | S20 |
| Active area | 20mm diameter |
| Window material | Fused silica |
| Number dynodes | 10 |
| Dynode chain resistance | Linear: 750 kΩ Pulse Counting: 3.92 MΩ |
| Operating mode | Photoemmisive |
| Spectral response range | 200-850nm |
| Peak wavelength (typ.) | 420 nm |
| Dark current (typ.) | 500pA at 750V |
| NEP | 1 x 10-16 W.Hz-1/2 |
| Max. high voltage | 1500V DC |
| Max. anode current | 100μA |
| Max. operating Temperature | -80 to +50°C |
