DH_50 Cooled Multi-Alkali Photomultiplier (200-930nm)
Electro-Optical
| Photocathode | S20 |
| Active area | 20mm dia, |
| Window material | UV Glass |
| Number dynodes | 9 |
| Dynode chain resistance | Linear: 750 kΩ Pulse Counting: 3.92 MΩ |
| Operating mode | Photoemmisive |
| Spectral response range | 200-900nm |
| Peak wavelength (typ.) | 420 nm |
| Dark current (typ.) | 1pA at 750V and -20°C |
| NEP | 1.3 x 10-16 W.Hz-1/2 |
| Range of temperature control | -20°C to +20°C |
| Max. high voltage | 1250V DC |
| Max. anode current | 100μA |
| Max. operating Temperature | -30 to +50°C |