The 9321B Photomultiplier Tube is a sophisticated, compact device engineered for precision in light detection. With a 78mm (3”) diameter, this end window photomultiplier is designed to meet the demands of high-performance applications. It features a blue-green sensitive bialkali photocathode, which is crucial for capturing a wide range of light wavelengths, specifically from 295 nm to 630 nm. This range ensures that the device is capable of detecting various light intensities with exceptional accuracy.

At the heart of the 9321B is its linear-focused design, which incorporates 10 high-gain, high-stability SbCs dynodes. This configuration is meticulously crafted to provide outstanding linearity and timing, making it ideal for applications requiring precise scintillation spectroscopy. The photomultiplier's ability to maintain good pulse height resolution is a testament to its advanced engineering, ensuring that users receive reliable and consistent data.

Constructed with a borosilicate window, the 9321B is not only robust but also optimized for light transmission, enhancing its overall performance. This material choice complements the photomultiplier's intricate design, providing durability and efficiency. With its remarkable sensitivity and stability, the 9321B is a versatile tool for researchers and professionals who require dependable light detection capabilities.