29mm Photomultiplier Tube 9878B with High-Temperature Bialkali Photocathode
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United States
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On FindLight:
since 2014
Description
The 9878B Photomultiplier is a state-of-the-art 29 mm (1.13") diameter device, designed to deliver exceptional performance in high-temperature environments. Featuring a high-temperature bialkali photocathode, this photomultiplier is engineered to operate efficiently at temperatures reaching up to 150°C. Its robust construction includes 11 BeCu dynodes configured in a box grid design, ensuring optimal electron multiplication and signal amplification.
The 9878B is crafted with a focus on durability and precision. Its tarnish-free gold-plated base pins enhance longevity and maintain excellent connectivity, even in challenging conditions. The photomultiplier's borosilicate window is designed to cover a spectral range of 280 nm to 630 nm, facilitating a wide array of applications where spectral sensitivity is crucial. With a refractive index of 1.49, this device ensures minimal light loss and maximum efficiency in capturing photons.
This photomultiplier's quantum efficiency peaks at 17%, with a luminous sensitivity of 50 µA/lm, making it a reliable choice for applications that require precise light measurement. The 9878B's design includes a nominal anode sensitivity of 20 A/lm and can reach up to 50 A/lm, supported by an overall voltage range of 1400 to 1600 V. Additionally, its magnetic field sensitivity and temperature coefficient are meticulously calibrated to ensure stable performance across varying conditions.
Weighing just 55 grams, the 9878B is lightweight yet robust, making it easy to integrate into various systems. This photomultiplier is an ideal choice for professionals seeking a reliable, high-performance solution for demanding applications. With its advanced features and durable construction, the 9878B is engineered to meet the needs of the most challenging environments, ensuring accurate and consistent results.
29mm Photomultiplier Tube 9878B with High-Temperature Bialkali Photocathode
Specifications |
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|---|---|
| PMT Type: | PMT (photomutiplier tube) |
| Wavelength Of Max Response: | 350 nm |
| Wavelength Range: | 280 – 630 nm |
| Rise Time: | 15 ns |
| Active Diameter: | 25 mm |
| Quantum Efficiency At Peak: | 17 % |
| Weight: | 55 g |
| Maximum Temperature: | 150 °C |
| Operating Voltage For 50 PC/MeV: | 1200 - 1300 V |
Features
- High-Temperature Operation: The 9878B photomultiplier can operate at temperatures up to 150°C, making it ideal for demanding environments such as oil well logging.
- Spectral Range: Covers a range of 280 - 630 nm, with quantum efficiency exceeding 1% of the peak within this range.
- Photocathode: Features a high-temperature bialkali photocathode with a quantum efficiency at peak of 17%.
- Anode Sensitivity: Nominal anode sensitivity of 20 A/lm, with a maximum rated sensitivity of 50 A/lm.
- Durable Construction: Tarnish-free gold-plated base pins ensure long-lasting performance.
- Dynodes: Equipped with 11 BeCu dynodes of box grid design for efficient electron multiplication.
- Refractive Index: The window has a refractive index of 1.49, ensuring optimal light transmission.
- Weight: Lightweight design at only 55 grams.
- Voltage Ratings: Maximum rated anode voltage of 2000V and divider voltage of 300V, with a gain of up to 106.
- Environmental Resistance: Can withstand ambient pressure up to 202 kPa.
- Fast Response: Features a single electron rise time of 15 ns and a full width at half maximum (FWHM) of 30 ns.
- Temperature Coefficient: ±0.5% per °C ensures stable performance across temperature variations.
Applications
- Oil Well Logging: The 9878B photomultiplier is designed to withstand high temperatures, making it ideal for applications in oil well logging.
- High Temperature Operation: Capable of operating at temperatures up to 150 °C, this photomultiplier is suitable for use in high-temperature environments.
- Tarnish-Free Components: Features tarnish-free gold plated base pins, ensuring long-term reliability and performance.
Frequently Asked Questions
The 9878B photomultiplier tube has a diameter of 29 mm (1.13 inches).
The 9878B photomultiplier tube can operate in temperatures up to 150 degrees Celsius.
The 9878B photomultiplier tube is suitable for oil well logging.
Voltage dividers and magnetic shields are available for the 9878B photomultiplier tube. In addition, the UK factory supplies housings, power bases, and signal processing electronics together with a new range of integrated detector modules.
The quantum efficiency of the 9878B photomultiplier tube is 17% at peak, with a wavelength range over which quantum efficiency exceeds 1% of peak of 280-630 nm.