The 9216B Photomultiplier is a compact, high-performance device designed with a 51mm (2”) diameter end window. It features a blue-green sensitive bialkali photocathode, which is known for its high quantum efficiency. This photomultiplier is equipped with 10 high gain, high stability, SbCs dynodes arranged in a linear focused design, ensuring excellent linearity and timing. These characteristics make the 9216B an ideal choice for applications requiring precise photon detection and measurement.

With its compact length and robust construction, the 9216B is suitable for a wide range of applications. It excels in environments where x-ray and gamma-ray scintillation or photon counting are required. Its design incorporates high quantum efficiency and good single electron response (SER), making it highly effective in detecting low levels of light with minimal noise interference. The photomultiplier also offers high pulsed linearity and low-rate effect, ensuring reliable performance in dynamic conditions.

The 9216B's spectral response is optimized for the 290 to 630 nm range, making it particularly responsive to blue-green wavelengths. The window is made of borosilicate, which provides durability while maintaining optimal light transmission. The device's sensitivity and gain parameters can be finely tuned to meet specific operational requirements, making it versatile for various scientific and industrial applications.

In terms of construction, the 9216B is designed to withstand varying environmental conditions, with specifications accommodating a range of temperatures and pressures. This ensures that the photomultiplier maintains its performance across different settings. The device is also engineered to minimize magnetic field sensitivity, further enhancing its reliability in diverse operational environments.