Product brochure
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Descargar ahoraEmbrace the future of photodetection with Silicon Photomultiplier technology – optimized for energy savings, robust performance, and lasting quality.
With built-in redundancy and exceptionally low power consumption, our SiPM solutions are designed to provide lasting, reliable performance under demanding conditions. Discover the full potential of this advanced photomultiplier technology in radiometry by exploring our latest insights in the new whitepaper, Photomultipliers in Radiometry.
SiPM technology significantly lowers operational costs with its high energy efficiency, achieving up to 99% reduction in energy costs compared to traditional photomultiplier systems.
Thanks to its optimized design, SiPM devices require minimal installation space, allowing for greater flexibility and ease of integration, especially in areas with limited space.
Requiring just a pair of wires, the simplified wiring reduces installation complexity and improves overall system efficiency, making SiPM an ideal choice for both new projects and system upgrades.
Our latest whitepaper, Photomultipliers in Radiometry, dives into the essential role of photomultiplier technology in precise radiometric measurements. This comprehensive guide covers the fundamental principles, advantages, and applications of both traditional photomultipliers and the advanced Silicon Photomultiplier (SiPM) technology, which delivers superior energy efficiency, durability, and measurement accuracy.
Key topics covered
To preserve the energy information, SiPMs consist of an array of microcells, each containing an individual avalanche photodiode. These microcells are typically very small, often on the order of tens of micrometers, allowing for high-density packing of APDs on a single silicon substrate. The small size also minimizes the probability of simultaneous events on one microcell. To ensure the SiPM operates within a controlled range, a quenching resistor helps limit. This resistor helps limit the duration of the avalanche breakdown, preventing excessive charge buildup and ensuring a rapid reset of the microcell for subsequent photon detections. The microcell arrangement enables the SiPM to achieve high photon detection efficiency and excellent temporal resolution. The signals from each microcell are read out and processed individually. The high density of microcells allows SiPMs to provide excellent spatial resolution and sensitivity, making them particularly useful in applications demanding precise detection of low-intensity light signals. The signals from all the microcells are summed, providing a collective output that corresponds to the total photon flux incident on the SiPM. This summation process allows SiPMs to operate over a wide dynamic range, accommodating both low and high-intensity light conditions.
Photomultiplier technologies | SiPM | |
---|---|---|
Installation size (length) | 5 – 20 cm | 0.5 – 1 mm |
Power consumption | Approx. 12 W | Approx. 30 mW |
Stability | ≤ 0.002 % per °C | ≤ 0.01 % per °C |
Temperature dependency | Slightly dependent | Moderately dependent |
Quantum efficiency** | 30 – 35 % | 30 – 50 % |
Aging | Several significant effects e.g. “yellowing”* | No significant effects |
The photocathode spectral of a photomultiplier refers to the discoloration or degradation of the photocathode or other internal components of a photomultiplier tube (PMT), which can impair its performance. This phenomenon is usually caused by prolonged exposure to environmental factors or operational conditions that induce chemical or structural changes within the PMT. The main causes are:
While yellowing has a significant effect on radiometric measurement systems over time, we use our patented cosmic radiation compensation to avoid these effects. Berthold uses cosmic radiation from outer space as a fixed reference point to adjust the high voltage of detectors to stabilize detector sensitivity.
more about vacuum photomultiplier tubes
Quantum efficiency (QE) is a measure of how good a photodetector is at turning light into an electrical signal, it can be thought of as a “conversion score” or “counting success”. Quantum efficiency tells you how many photons manage to knock loose an electron. For example, if 100 photons hit the device and 80 electrons are released, the QE is 80%.
SiPM technology has emerged as valuable component in the process industry, offering distinct advantages that make it particularly well-suited for the most challenging environments and applications. SiPMs boast a solid and compact construction, providing increased mechanical robustness. This attribute makes them highly suitable for demanding environments, such as the hydraulic fracturing industry, where equipment is subjected to strong vibrations. The durability of SiPMs allows them to withstand these physical stresses commonly encountered in this rugged industrial setting, ensuring reliable performance over extended periods.
They also exhibit enhanced electromagnetic robustness, rendering them suitable for applications in the presence of strong electromagnetic fields. This characteristic is particularly valuable in industries like steel manufacturing, where electromagnetic brakes (EMBr) are employed during casting processes. SiPMs can operate seamlessly in such environments without being adversely affected and can therefore be employed to measure the level of fluid steel inside the mould.
Product brochure
Englisch | PDF | 248.8 KB
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