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Photomultiplier tube unit
H12397A-75
H12397A-75 is an NIR-PMT unit using a compact NIR-PMT (near infrared photomultiplier tube) developed by our advanced photocathode technology. The NIR-PMT is contained in a thermally insulated sealed-off housing evacuated to a high vacuum. The internal thermoelectriccooler eliminates the need for liquid nitrogen and cooling water. The light input window of these modules use a condenser lens to provide a virtually larger photosensitive area allowing easy optical coupling. Adapters for connection to an optical fiber and monochromator are also available as options.
The H12397A-25 (InP/InGaAs photocathode) is high sensitivity NIR-PMT unit with spectral response range from 950 nm to 1700 nm.
Features
- High sensitivity
- Built-in thermoelectric cooler and gate circuit
- Low noise
Applications
- Photoluminescence measurement
- Singlet oxygen measurement
- Atmospheric LiDAR
Characteristics
Spectral response
Gain
Waveform
Transit time spread (T.T.S.)
Specifications
| Parameter | Value | Unit | ||
|---|---|---|---|---|
| Spectral response | 950 to 1700 | nm | ||
| Peak sensitivity wavelength | 1500 | nm | ||
| Photocathode material | InP/InGaAs | ー | ||
| PMT operating temperature | -70 | ℃ | ||
| Guaranteed PMT operating voltage | -500 to -900 | V | ||
| Operating ambient temperature | +5 to +40 | ℃ | ||
| Storage temperature | -20 to +50 | ℃ | ||
| Max. average output signal current | 1 | µA | ||
| Cathode*1*2 | Quantum efficiency | Min. | 1 | ％ |
| Typ. | 2 | |||
| Radiant sensitivity | Min. | 12 | mA/W | |
| Typ. | 24 | |||
| Anode*1*2 | Radiant sensitivity | Min. | 6 x 103 | A/W |
| Typ. | 2.4 x 104 | |||
| Dark current*3 | Typ. | 0.8 | nA | |
| Max. | 2 | |||
| Dark count*3 | Typ. | 5000 | s-1 | |
| Gain*2 | Min. | 5 x 105 | ー | |
| Typ. | 1 x 106 | |||
| Time response | Anode pulse rise time | Typ. | 0.9 | ns |
| Anode pulse fall time | Typ. | 1.7 | ||
| Transit time spread | Typ. | 0.4 | ||
| Cooling method | Thermoelectric (Forced air cooling) | ー | ||
| Optical fiber | Input connector | FC connector | ー | |
| NA | 0.37 ±0.02 | ー | ||
| Core diameter | Φ0.2 | ー | ||
| Cooling time required for operation | Approx. 60 | min | ||
| Protection function | High voltage interlock for inappropriate temperature | ー | ||
| Controller rating | Input voltage (AC) | 90 to 264 (50 Hz / 60 Hz) | ー | |
| Power consumption | 100 | VA | ||
| Weight*4*5 | Main unit | Approx. 2.20 | kg | |
| Controller | Approx. 3.13 | |||
*1 At peak sensitivity wavelength.
*2 At -800 V input voltage and -70 °C operating temperature.
*3 After 30 min storage with cooling in darkness. (Anode radiant sensitivity 1.0 × 104 A/W)
*4 Including resistor box with BNC connectors.
*5 Including high voltage cable and control cable.
Dimensional outline (Unit: mm)
Main unit
Controller
Accessories
High voltage cable
Control cable
- Confirmation
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