Photon Counting Module PDM02-9111-TTL
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United States
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On FindLight:
since 2014
Description
The PDM02-9111-TTL is a state-of-the-art photon counting module designed for precision and versatility in a wide range of scientific and industrial applications. At the heart of this module is a high sensitivity, low noise, 25mm diameter photomultiplier, paired with a fast amplifier-discriminator and a low power high-voltage supply. This combination of high-speed electronics and a fast photomultiplier ensures a wide dynamic range, making it ideal for detecting low light levels with exceptional accuracy. The module's positive polarity high-voltage supply is specifically engineered for maximum count rate stability, even at very low light levels, while its mumetal rectangular housing offers superior immunity to external magnetic fields.
The PDM02-9111-TTL operates within a spectral range of 280-600nm, catering to a variety of light detection needs. For applications requiring extended UV sensitivity, other versions such as the PDM02-9111W-TTL are available, expanding the range down to 200nm. With an effective photosensitive diameter of 22mm, the module facilitates efficient light collection. Moreover, it boasts a typical dark count of only 100 counts per second at 20 degrees Celsius, providing a unique detection capability that sets it apart in the market.
Designed for ease of use, the photomultiplier high-voltage and discriminator threshold level are pre-set to ensure optimal performance. This allows for straightforward photon counting operation simply by connecting the module to a +5V supply. Its fixed pulse-width TTL output is fully compatible with the ET Enterprises MCS-CT3 multi-channel scaler/counter-timer, enabling seamless integration into existing systems. Both units can be controlled and powered via a PC USB port, subject to USB port current limitations, providing a convenient and efficient solution for various photon counting applications.
Photon Counting Module PDM02-9111-TTL
Specifications |
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|---|---|
| Active Diameter: | 22 mm |
| Peak Quantum Efficiency: | 28 % |
| Spectral Range: | 280 – 600 nm |
| TTL Active High Level: | 3.3 V |
| Rise And Fall Time: | 4.5 ns |
| Pulse Width: | 5 ns |
| Supply Voltage: | 5 V |
| Warm-up Time: | 1 s |
| Temperature (Operating): | -40 to 60 °C |
| Temperature (Storage): | -40 to 93 °C |
| Weight: | 210 g |
Features
- High Sensitivity and Low Noise: Incorporates a 25mm diameter photomultiplier for high sensitivity with minimal noise.
- Fast Amplifier-Discriminator: Ensures rapid processing of signals for efficient photon counting.
- Wide Dynamic Range: Achieved through high-speed electronics and a fast photomultiplier with low dark counts.
- Stable Count Rate: Positive polarity high-voltage supply for stability at very low light levels.
- Magnetic Field Immunity: Mumetal rectangular housing provides high immunity to external magnetic fields.
- Spectral Range: Covers 280-600nm, with versions available for extended UV sensitivity to 200nm.
- Efficient Light Collection: 22mm effective photosensitive diameter facilitates easy collection of incident light.
- Low Dark Count: Typical dark count of only 100 cps at 20°C.
- Pre-set for Optimum Performance: High-voltage and discriminator threshold levels are pre-set for ease of use.
Applications
- Fluorescence Spectroscopy
- Luminometry
- Hygiene Monitoring
- Portable Photon Counting Equipment
Frequently Asked Questions
The spectral range of the PDM02-9111-TTL is 280-600nm.
The typical dark count of the PDM02-9111-TTL is only 100 cps at 20 deg C.
The effective photosensitive diameter of the PDM02-9111-TTL is 22mm.
The power dissipation of the PDM02-9111-TTL is only 500mW (typical).
The PDM02-9111-TTL has a fixed pulse-width TTL output that is fully compatible with the ET Enterprises MCS-CT3 multi-channel scaler/counter-timer.