Overview of FPD Series
The FPD detector is an integrated module including a compact PMT, a high voltage power supply and a GHz amplifier. Three versions of the photocathode material cover the wavelength range from 185 nm to 920 nm. The module is thermoelectrically cooled and temperature-stabilized for reducing the dark current. The gain is controlled through the M700 unit that allows control of up to four modules. With low dark counts level, low jitter, and an excellent timing resolution the FPD detector series is suitable for time-resolved measurements for both TCSPC and frequency-domain measurements.
Features
- Timing resolution < 140 ps
- Quantum Efficiency up to 43% (cathode dependent)
- Wavelength range: from 185 nm to 920 nm
- Thermoelectrically cooled
- Internal pre-amplifier
- Internal High voltage power supply
- Gain control though M700 unit
Product Specifications for FPD Series
| FPD | -700 | -820 | -920 |
|---|---|---|---|
| Cathode type | Ultra bialkali | Multialkali, UV | Extended red |
| Wavelength range (nm) | 230 - 700 | 185 - 870 | 230 - 920 |
| Peak sensitivity wavelength (nm) | 350 | 400 | 630 |
| Quantum efficiency | 43% @ 350 nm | 25% @ 380 nm | 18% @ 490 nm |
| Effective area diameter (mm) | 8 | 8 | 8 |
| Dark counts (counts/s) | 20 | 20 | < 300 |
| Transit Time Spread | < 130 ps | < 130 ps | < 140 ps |
| Single electron response width (FWHM, typ.) | 1.5 ns | 1.5 ns | 1.5 ns |
| Rise time (ns) | 0.57 | 0.57 | 0.57 |
| Count rate | > 5 MHz | > 5 MHz | > 5 MHz |
Signal Output
Polarity
- Negative
Connector
- SMA
Impedance
- 50 Ω
Power Supply
Power requirements (from M700 module)
- ± 12 V; Peltier element: 0.5 – 1.0 A
Dimensions
Cathode Diameter (mm)
- 8
